General Description
The MAX1231B/MAX11633/MAX11635 evaluation sys-
tems (EV systems) include one master board and one
of three daughter boards. The EV systems also include
Windows XPM-, Windows VistaM-, and WindowsM 7-com-
patible software that provides a simple graphical user inter-
face (GUI) for exercising the features of the various ADCs.
The master board (MAX116XXSPIMB) connects
to a PC’s USB port and allows the transfer of SPI
commands to the corresponding daughter board.
The daughter boards are fully assembled and tested
PCBs that demonstrate the capabilities of the MAX1030,
MAX1031, MAX1230, MAX1231, MAX11624, MAX11625,
MAX11632–MAX11635, MAX11642, and MAX11643
300ksps, 8-/10-/12-bit, 3V/5V, low-power, high-speed
SPI ADCs with internal or external references.
Each EV kit daughter board evaluates differ ent ADCs, but
only the default ADC referenced in the EV kit daughter
board is installed on the board. Contact the factory for
free samples of the other pin-compatible ADCs to evaluate
these devices or to order individual boards.
Features
S USB Powered (No External Power Supply
Required)
S Daughter Board Powered by the Master Board
S 4/16 ADC Channel Inputs
S 10MHz SPI Interface
S Windows XP-, Windows Vista-, and Windows
7-Compatible Software
S Time Domain, Frequency Domain, and Histogram
Plotting in the EV System Software
S Frequency, RMS, Min, Max, and Average DC
Calculations in the EV System Software
S Collects Up to One Million Samples
S On-Board Voltage Reference
S Proven PCB Layout
S Fully Assembled and Tested
USB TO PC
PC
MAX116xx SPI
MASTER BOARD LEVEL
TRANSLATOR 12-BIT, 300ksps
MULTICHANNEL ADC
VOLTAGE REFERENCE
ANALOG
INPUTS
MAX1231, MAX11633, OR
MAX11635 DAUGHTER BOARD
MAX1231B/MAX11633/MAX11635 Evaluation Systems
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
_________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
19-6014; Rev 1; 4/12
Ordering Information/Selector Guide appears at end of data
sheet.
Windows, Windows XP, and Windows Vista are registered
trademarks of Microsoft Corp.
Figure 1. EV System Block Diagram
DESIGNATION QTY DESCRIPTION
C1–C17 17
47nF Q10%, 16V, X7R ceramic
capacitors (0603)
Murata GRM188R71C473K
C18–C33 16
1nF Q10%, 50V, X7R ceramic
capacitors (0603)
Murata GRM188R71H102K
C34, C52 2
1FF Q10%, 16V X5R ceramic
capacitors (0603)
Murata GRM188R61C105K
C35, C42, C46,
C50, C53–C56,
C60, C61, C62,
C64, C65, C66
14
0.1FF Q10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C104K
C36, C39 2
0.01FF Q10%, 50V, X7R ceramic
capacitors (0603)
Murata GRM188R71H103K
C37, C44, C45 3
10pF Q5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H100J
C38 1
15pF Q5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H150J
C40, C41 2
39pF Q5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H390J
C43, C49, C51,
C63, C67, C68,
C70
7
10FF Q10%, 25V, X5R ceramic
capacitors (1206)
Murata GRM31CR61E106K
C47, C48, C69 3
4.7FF Q10%, 25V X5R ceramic
capacitors (1206)
Murata GRM31CR71E475M
C57 1
0.033FF Q10%, 16V X5R ceramic
capacitor (0603)
Taiyo Yuden EMK107BJ333KA
C58, C59 2
22pF Q5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H220J
C71, C72 2 47FF Q20%, 6.3V capacitors (B1)
SANYO 6TPC47MB
DGND, DVDD 2 Uninsulated banana jacks
DESIGNATION QTY DESCRIPTION
J1 1 Dual-row, 20-pin (2 x 10) right-
angle male header
J2 0 Not installed, dual-row 24-pin (2 x
12) header
J3 1 USB type-B right-angle
PC-mount receptacle
JSPI 0 Not installed, 6-pin header
JTAG1 1 6-pin header
JTAG2 1 Dual-row, 10-pin (2 x 5) header
JU1–JU4 0 Not installed, 2-pin headers
JU5 0 Not installed, 3-pin header
JU6–JU9 4 2-pin headers
JU10 1 3-pin header
L1 1 Ferrite bead (0603)
TDK MMZ1608R301A
L2 1 22FH, 0.11I, 300mA inductor
Coilcraft DS1608C-223ML
LED1, LED2,
LED3 3 Red LEDs (0603)
R1, R3, R4,
R19, R21, R22,
R23, R24
84.7kI Q5% resistors (0603)
R2, R16, R17,
R18 4100I Q5% resistors (0603)
R5 1 390I Q5% resistor (0603)
R6, R7, R8,
R27, R36 510kI Q5% resistors (0603)
R9, R10, R11 3 200I Q5% resistors (0603)
R12, R14, R25,
R29 410I Q5% resistors (0603)
R13 1 150I Q5% resistor (0603)
R15 1 56I Q5% resistor (0603)
R20, R28 2 680I Q5% resistors (0603)
R26 1 1kI Q5% resistor (0603)
R30 1 18.7kI Q1% resistor (0603)
R31, R43, R44,
R46, R50, R53 610kI Q1% resistors (0603)
R32, R33 2 27I Q5% resistors (0603)
R34 1 1.5kI Q5% resistor (0603)
R35 1 2.2kI Q5% resistor (0603)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 2
Component Lists
MAX116XX SPI Master Board
DESIGNATION QTY DESCRIPTION
R37–R41 0 Not installed, resistors—short (PC
trace)
R42, R45, R51 3 100kI Q5% resistors (0603)
R47 1 20kI Q1% resistor (0603)
R48 1 470I Q5% resistor (0603)
R49 1 30kI Q1% resistor (0603)
R52 1 34kI Q1% resistor (0603)
R54 1 1MI Q5% resistor (0603)
S1 1 4-position switch
U1 1 Spartan 3A FPGA (144 TQFP)
Xilinx XC3S50A-4TQG144I
U2 1 Microcontroller (68 QFN-EP*)
Maxim MAXQ2000-RAX+
U3 0 Not installed, Xilinx PROM
U4 1 Atmel SPI Flash (8 SO)
Atmel AT45DB161D-SU
U5 1 SRAM (48 TSOP)
Cypress CY62167DV30LL-55ZXI
U6, U7, U11 3 LDOs (16 TSSOP-EP*)
Maxim MAX1793EUE50+
U8 1 USB-to-UART converter
(32 TQFP)
DESIGNATION QTY DESCRIPTION
AIN0–AIN15 16 Yellow multipurpose test points
C1, C4 2
1FF Q10%, 10V X5R ceramic
capacitors (0402)
Murata GRM155R61A105K
C2, C3 2
10FF Q20%, 6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J106M
C5, C6, C7,
C12 4
0.1FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
C8–C11, C33 0 Not installed, ceramic capacitors
(0603)
DESIGNATION QTY DESCRIPTION
U9 1 93C46-type 3-wire EEPROM
(8 SO)
U10 1 LDO (6 SOT23)
Maxim MAX1983EUT+
U12 1 Step-up regulator (8 FMAXM)
Maxim MAX1795EUA+
Y1 1 50MHz oscillator
Y2 1
6MHz crystal
Hong Kong X’tals
SSL60000N1HK188F0-0
Y3 0 Not installed, crystal
Y4 1
16MHz crystal
Hong Kong X’tals
SSM16000N1HK188F0-0
— 1 USB high-speed A-to-B cables,
6ft
— 5 Shunts
— 1 PCB: MAX116XX SPI MASTER
BOARD
DESIGNATION QTY DESCRIPTION
C14–C29 16
0.01FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C103K
C30, C31, C32 3
0.1FF Q10%, 16V X7R ceramic
capacitors (0402)
Murata GRM155R71C104K
D1 1 Red LED (0603)
GND 3 Black multipurpose test points
J1 1 20-pin (2 x 10) right-angle female
header
J2, J3 2 Dual-row, 16-pin (2 x 8) headers
JU1, JU2, JU4 3 3-pin headers
R1 1 470I Q5% resistor (0603)
R3–R18 16 10I Q5% resistors (0603)
REF+, REF-,
VDD 3 Red multipurpose test points
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 3
Component Lists (continued)
MAX116XX SPI Master Board (continued)
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
*EP = Exposed pad.
MAX1231B EV Kit Daughter Board
DESIGNATION QTY DESCRIPTION
AIN0–AIN15 16 Yellow multipurpose test points
C1, C4 2
1FF Q10%, 10V X5R ceramic
capacitors (0402)
Murata GRM155R61A105K
C2, C3 2
10FF Q20%, 6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J106M
C5, C6, C7,
C12 4
0.1FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
C8–C11 0 Not installed, ceramic capacitors
(0603)
C14–C29 16
0.01FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C103K
C30, C31, C32 3
0.1FF Q10%, 16V X7R ceramic
capacitors (0402)
Murata GRM155R71C104K
D1 1 Red LED (0603)
GND 2 Black multipurpose test points
DESIGNATION QTY DESCRIPTION
J1 1 20-pin (2 x 10) right-angle female
header
J2, J3 2 Dual-row, 16-pin (2 x 8) headers
JU1, JU2, JU4 3 3-pin headers
R1 1 470I Q5% resistor (0603)
R3–R18 16 10I Q5% resistors (0603)
REF, VDD 2 Red multipurpose test points
SW1, SW2 2 8-channel SPST DIP switches
U1 1
12-bit, 16-channel ADC
(24 QSOP)
Maxim MAX11633EEG+
U2 1 Voltage reference (8 SO)
Maxim MAX6126AASA25+
U3 0 Not installed, voltage reference
(8 SO)
U4 1 Level translator (24 TSSOP)
Maxim MAX3002EEUP+
— 3 Shunts
— 1 PCB: MAX11633 EVALUATION
KIT
DESIGNATION QTY DESCRIPTION
AIN0–AIN3 4 Yellow multipurpose test points
C1, C4 2
1FF Q10%, 10V X5R ceramic
capacitors (0402)
Murata GRM155R61A105K
C2, C3 2
10FF Q20%, 6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J106M
DESIGNATION QTY DESCRIPTION
C5, C6, C7,
C12, C18 5
0.1FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
C8–C11 0 Not installed, ceramic capacitors
(0603)
C14–C17 4
0.01FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C103K
DESIGNATION QTY DESCRIPTION
SW1, SW2 2 8-channel SPST DIP switches
U1 1
12-bit, 16-channel ADC
(24 QSOP)
Maxim MAX1231BEEG+
U2 1 Voltage reference (8 SO)
Maxim MAX6126AASA25+
DESIGNATION QTY DESCRIPTION
U3 0 Not installed, voltage reference
(8 SO)
U4 1 Level translator (24 TSSOP)
Maxim MAX3002EEUP+
— 3 Shunts
— 1 PCB: MAX1231B EVALUATION
KIT
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 4
Component Lists (continued)
MAX11633 EV Kit Daughter Board
MAX11635 EV Kit Daughter Board
MAX1231B EV Kit Daughter Board (continued)
DESIGNATION QTY DESCRIPTION
C30, C31, C32 3
0.1FF Q10%, 16V X7R ceramic
capacitors (0402)
Murata GRM155R71C104K
D1 1 Red LED (0603)
GND 3 Black multipurpose test points
J1 1 20-pin (2 x 10) right-angle female
header
J2 1 Dual-row, 16-pin (2 x 8) header
JU1, JU2 2 3-pin headers
JU4 1 2-pin header
R1 1 470I Q5% resistor (0603)
R3–R6 4 10I Q5% resistors (0603)
REF+, REF-,
VDD 3 Red multipurpose test points
DESIGNATION QTY DESCRIPTION
SW1 1 8-channel SPST DIP switch
U1 1 12-bit, 4-channel ADC (16 QSOP)
Maxim MAX11635EEE+
U2 1 Voltage reference (8 SO)
Maxim MAX6126AASA25+
U3 0 Not installed, voltage reference
(8 SO)
U4 1 Level translator (24 TSSOP)
Maxim MAX3002EEUP+
— 3 Shunts
— 1 PCB: MAX11635 EVALUATION
KIT
SUPPLIER PHONE WEBSITE
Coilcraft, Inc. 847-639-6400 www.coilcraft.com
Hong Kong X’tals Ltd. 852-35112388 www.hongkongcrystal.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
SANYO Electric Co., Ltd. 619-661-6835 www.sanyo.com
Taiyo Yuden 800-348-2496 www.t-yuden.com
TDK Corp. 847-803-6100 www.component.tdk.com
FILE DESCRIPTION
INSTALL.EXE Installs the EV system files on your computer
MAX116XXSPIMB.EXE Application program
CDM20600.EXE Installs the USB device driver
UNINSTALL.EXE Uninstalls the EV system software
USB_Driver_Help_200.PDF USB driver installation help file
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 5
Component Lists (continued)
MAX11635 EV Kit Daughter Board (continued)
Component Suppliers
Note: Indicate that you are using the MAX1231, MAX11633, or MAX11635 when contacting these component suppliers.
MAX1231B/MAX11633/MAX11635 EV System Files
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 6
Quick Start
Required Equipment
• MAX1231B, MAX11633, or MAX11635 EV system
• MAX116XX SPI master board (USB cable included)
• One of the three EV kit daughter boards
• Function generator
• Windows XP, Windows Vista, or Windows 7 PC with
a spare USB port
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV system software. Text in bold
and underlined refers to items from the Windows
operating system.
Procedure
Each EV system is fully assembled and tested. Follow the
steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to down-
load the latest version of the EV system software,
116XXSPIMBRxx.ZIP. Save the EV system software
to a temporary folder and uncompress the ZIP file.
2) Install the EV system software and USB driver on
your computer by running the INSTALL.EXE pro-
gram inside the temporary folder. The program files
are copied to your PC and icons are created in the
Windows Start | Programs menu. During software
installation, some versions of Windows may show
a warning message indicating that this software
is from an unknown publisher. This is not an error
condition and it is safe to proceed with installation.
Administrator privileges are required to install the
USB device driver on Windows.
3) Carefully connect the boards by aligning the
daughter board’s 20-pin connector with the 20-pin
header on the MAX116XX SPI master board. Gently
press them together.
4) Verify that all jumpers are in their default positions for
the master board (Table 1) and the jumpers for the
selected EV kit daughter board (Tables 2, 3, and 4).
5) Connect the positive terminal of the signal genera tor
to the AIN0 connector on the EV kit daughter board.
Connect the negative terminal of the sig nal gen-
erator to the GND connector on the EV kit daughter
board.
6) Enable the signal generator. Set the signal source
to generate a 1kHz, 1VP-P sinusoidal wave with 1V
offset.
7) Connect the USB cable from the PC to the master
board. A Windows message appears when connect-
ing the master board to the PC for the first time. Each
version of Windows has a slightly different message.
If you see a Windows message stating ready to
use, then proceed to the next step. Otherwise, open
the USB_Driver_Help_200.PDF document in the
Windows Start | Programs menu to verify that the
USB driver was installed successfully.
8) Start the MAX116XX SPI EV system software by
opening its icon in the Start | Programs menu.
The EV system software device selection window
appears, as shown in Figure 2. Select the appropri-
ate device from the Select the ADC device drop-
down list. The EV system software main window
appears, as shown in Figure 3.
9) Select 2048 from the Number of Samples drop-
down list in the Data Logging group box.
10) Enter 300 into the Sample Rate (ksps) edit box to
set the maximum sampling rate.
11) Check the Remove DC checkbox to remove the DC
component of the sampled data.
12) Press the Start Conversion button.
13) Verify the Frequency of approximately 1kHz, the
RMS value of 1.06V, the MIN value of 0.50V, the
MAX value of 1.50V, and the Avg DC value of 1V are
displayed in the Calculation group box.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 7
Detailed Description of Software
The MAX116XX SPI EV system software supports the
MAX1231/MAX11633/MAX11635 family of ADC devices.
When the EV system software starts up, select the
appropriate device from the Select the ADC device
drop-down list shown in Figure 2. Press the Select button
to bring up the main software window.
The main window of the evaluation software (Figure 3)
contains a Device Configuration group box, a Data
Logging group box, and four tab sheets to display the
sampled data.
Device Configuration
The Device Configuration group box is used to config-
ure the selected ADC device.
Use the drop-down list in the Ref Voltage and AIN_/REF
Setting group box to select the source of the voltage ref-
erence and configure the property of the AIN_/REF pin of
the ADC device. If the source of the voltage reference is
set to VDD or external reference, enter the actual voltage
value in the Reference Voltage edit box. This value is
used to calculate the voltage from the ADC code.
The drop-down list in the Channel Select group box
configures the ADC’s channel selection register that
determines which analog input channels are to be used
for conversion.
In the Scan Mode group box, use the drop-down list to
select one of the four scan modes. Press the Info button
to bring up a scanning configuration table for reference
(Figure 4).
In the Averaging Settings group box, the user can
enable the averaging mode, write to the averaging regis-
ter to configure the ADC to average up to 32 samples for
each requested result, and control the number of results
requested for single-channel scans.
Select one of the four different clock modes in the Clock
Mode group box. Press the Info button to bring up a
clock mode selection table for reference (Figure 5).
All input channels are configurable for single-ended or
differential inputs in unipolar or bipolar mode. The user
can configure the input channels in the Input Type
group box. If the selected ADC device has an internal
temperature sensor, check the Temperature Measurement
checkbox to enable the temperature reading.
Press the Reset All Registers button to reset the ADC
registers to their default settings. Press the Clear FIFO
button to clear the ADC FIFO buffer.
Figure 2. MAX116XX SPI EV System Software Device Selection Window
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 8
Figure 3. MAX116XX SPI EV System Software Main Window
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
_________________________________________________________________ Maxim Integrated Products 9
Data Logging
In the Data Logging group box, the user can select
the desired number of conversions in the Number of
Samples drop-down list. Enter the desired sampling rate
in the Sample Rate (ksps) edit box. The actual sampling
rate is displayed at the right of the Sample Rate (ksps)
edit box. Press the Start Conversion button to start
sampling. After sampling is finished, the user can save
the data to a file by pressing the Save To File button.
The Save To File button is not active until the sampling
is done.
Time Domain, Frequency Domain,
Histogram, and Single Conversion Tab Sheets
After the Start Conversion button in the Data Logging
group box is pressed, the sampled data in the time
domain is plotted in the Time Domain tab sheet. The
sampled data in the frequency domain is plotted in the
Frequency Domain tab sheet. The histogram of the
sampled signal is plotted in the Histogram tab sheet.
The Single Conversion tab sheet displays one set of
sampled data in any scan mode.
Check the Auto Convert checkbox to automatically
and repeatedly do the ADC conversions and update the
active tab sheet.
Time Domain Tab
In the Time Domain tab sheet (Figure 6), check the
Remove DC check box to remove the DC component
of the sampled signal. In the Scope Display Control
Vertical group box, when the Auto Scale checkbox is
checked, the software automatically scales the vertical
axis in the plot. If the Auto Scale checkbox is unchecked,
enter the appropriate values into the Y-MAX and Y-MIN
edit boxes and press the Set button to set the boundaries
for the vertical axis. The software automatically calculates
the Frequency, RMS, MIN, MAX, and Avg DC of the
sampled signal and displays the calculated values in
the Calculation group box. The frequency calculation is
valid only when the Remove DC checkbox is checked.
Figure 4. Scanning Configuration Reference Table
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 10
Figure 5. Clock Mode Reference Table
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 11
Frequency Domain Tab
The Frequency Domain tab sheet (Figure 7) displays
the FFT plot of the signal shown in the Time Domain tab
sheet.
Histogram Tab
The Histogram tab sheet (Figure 8) displays the histo-
gram of the signal shown in the Time Domain tab sheet.
The software automatically calculates the Mean and the
Std Dev (standard deviation, sigma) and displays the
calculated values in the Calculation group box.
The Histogram Display Control radio group box
provides three options to scale the horizontal axis on
the histogram. The options include (Mean - 3 sigma)
to (Mean + 3 sigma), (Mean - 6 sigma) to (Mean + 6
sigma), and User Define range.
Single Conversion Tab
The ADC Value Display for Single Conversion group
box in the Single Conversion tab sheet (Figure 9)
displays the ADC Codes and the calculated Voltage
values for a single sample of all the channels that
associate with the selected scan mode. Pressing the
Start Conversion button in the Data Logging group
box updates the status of the ADC Value Display for
Single Conversion group box. If the Temperature
Measurement checkbox in the Input Type group box is
checked, the temperature reading is displayed below the
ADC Value Display for Single Conversion group box.
Detailed Description of Hardware
MAX1231B/MAX11633/MAX11635
EV System
Each MAX1231B/MAX11633/MAX11635 EV system is a
complete data-acquisition system that consists of one
master board and three daughter boards. The three
daughter boards support the following parts: MAX1030,
MAX1031, MAX1230, MAX1231, MAX11624, MAX11625,
MAX11632–MAX11635, MAX11642, and MAX11643. The
Ordering Information/Selector Guide shows the boards
that are compatible with different parts.
MAX116XX SPI Master Board
The MAX116XX SPI master board connects to a PC’s
USB port and allows the transfer of SPI commands to the
EV kit daughter board.
Power Supply
By default, the master board is USB powered. The user
can apply an external 5V supply to DVDD. The daughter
board can be powered by the master board.
EV Kit Daughter Boards
The EV kit daughter boards are fully assembled and tested
PCBs that demonstrate the capabilities of the MAX1030,
MAX1031, MAX1230, MAX1231, MAX11624, MAX11625,
MAX11632–MAX11635, MAX11642, and MAX11643
4-/8-/12-/16-channel, 8-/10-/12-bit, 3V/5V, low-power, high-
speed SPI ADCs with internal or external references.
There are three EV kit daughter boards that evaluate
the various ADCs. Each daughter board comes with
one ADC installed, but other pin-compatible ADCs can
be installed by the user. See the Ordering Information/
Selector Guide section to select the desired EV kit
daughter board and ADC.
Carefully connect the EV kit daughter board to the
master board by aligning the EV kit daughter board’s
20-pin connector (J1) with the 20-pin header (J1) of the
master board. Gently press them together.
Voltage Reference
An on-board 2.5V voltage reference (U2) is provided
on the EV kit daughter board. U3 is a user-supplied
reference and is not installed. To use a user-supplied
reference voltage, install U3 with the desired reference
voltage and change the shunt on jumper JU2 to the
1-2 position. Alternatively, the user can also supply the
reference voltage to the REF+ or REF- test point after
removing the shunt from JU2. For more information about
the 4.096V reference voltage ADCs, refer to the indi-
vidual IC data sheet.
Power Supply
By default, the EV kit daughter board is powered from the
master board. Jumper JU1 selects between a 5V supply
and a 3.6V supply. The output voltage can be monitored
on the VDD test point. To use an external power supply,
remove the shunt from JU1 and apply user-supplied
power to the VDD test point. The power-supply range is
between 3.6V and 5.5V.
When evaluating the 5V part, as shown on the Ordering
Information/Selector Guide, see Tables 2, 3, and 4.
Evaluating the 5V Parts
When evaluating the 5V parts (MAX1030, MAX1230,
MAX11624, MAX11632, MAX11634, and MAX11642), see
Tables 2, 3, and 4 to properly set jumpers JU1 and JU2.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 12
Figure 6. Time Domain Tab
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 13
Figure 7. Frequency Domain Tab
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 14
Figure 8. Histogram Tab
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 15
Figure 9. Single Conversion Tab
JUMPER SHUNT POSITION DESCRIPTION
JU1
1-2* U1 powered by the 3.6V supply from the master board (MAX1031, MAX1231).
2-3 U1 powered by the 5V supply from the master board (MAX1030, MAX1230).
Open Apply the desired supply voltage (3.6V to 5V) on the VDD test point.
JU2
1-2 U3 provides the reference voltage to U1. U3 is not installed by default. For the 5V
parts, install a 4.096V reference.
2-3* U2 provides a 2.5V reference voltage to U1.
Open Apply the desired reference voltage on the REF+ test point.
JU4 1-2 To use CNVSTAIN15 as the analog input AIN15.
2-3* To use CNVSTAIN15 as the digital input CNVST.
JUMPER SHUNT POSITION DESCRIPTION
JU6 1-2* The on-board LDO (U6) provides 3.6V output to the EV system.
Open Disconnects the output of the on-board LDO (U6).
JU7 1-2* The on-board LDO (U7) provides 2.5V output to the EV system.
Open Disconnects the output of the on-board LDO (U7).
JU8 1-2* The on-board LDO (U8) provides 5V output to the EV system.
2-3 Disconnects the output of the on-board LDO (U8).
JU9 1-2* The on-board LDO (U9) provides 1.2V output to the EV system.
Open Disconnects the output of the on-board LDO (U9).
JU10
1-2* The EV system is powered by the USB.
2-3 The EV system is powered by an external power supply. Connect the power supply
across the DVDD and DGND connectors.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 16
Table 2. MAX1231B EV Kit Daughter Board Jumper Settings (JU1, JU2, JU4)
*Default position.
Table 1. Master Board Jumper Settings (JU6–JU10)
*Default position.
JUMPER SHUNT POSITION DESCRIPTION
JU1
1-2* U1 powered by the 3.6V supply from the master board (MAX11625, MAX11633, and
MAX11643).
2-3 U1 powered by the 5V supply from the master board (MAX11624, MAX11632, and
MAX11642).
Open Apply the desired supply voltage (3.6V to 5V)on the VDD test point.
JU2
1-2 U3 provides the reference voltage to U1. U3 is not installed by default. For the 5V
parts, install a 4.096V reference.
2-3* U2 provides a 2.5V reference voltage to U1.
Open Apply the desired reference voltage on the REF+ test point.
JU4 1-2 To use CNVST/AIN15 as the analog input AIN15.
2-3* To use CNVST/AIN15 as the digital input CNVST.
JUMPER SHUNT POSITION DESCRIPTION
JU1
1-2* U1 powered by the 3.6V supply from the master board (MAX11635).
2-3 U1 powered by the 5V supply from the master board (MAX11634).
Open Apply the desired supply voltage (3.6V to 5V) on the VDD test point.
JU2
1-2 U3 provides the reference voltage to U1. U3 is not installed by default. For the 5V
parts, install a 4.096V reference.
2-3* U2 provides a 2.5V reference voltage to U1.
Open Apply the desired reference voltage on the REF+ test point.
JU4 Closed* Connects REF- to GND.
Open Externally supply a reference voltage to the REF- test point.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 17
Table 3. MAX11633 Daughter Board Jumper Settings (JU1, JU2, JU4)
Table 4. MAX11635 Daughter Board Jumper Settings (JU1, JU2, JU4)
*Default position.
*Default position.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 18
Figure 10a. MAX116XX SPI Master Board Schematic (Sheet 1 of 4)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 19
Figure 10b. MAX116XX SPI Master Board Schematic (Sheet 2 of 4)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 20
Figure 10c. MAX116XX SPI Master Board Schematic (Sheet 3 of 4)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 21
Figure 10d. MAX116XX SPI Master Board Schematic (Sheet 4 of 4)
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 22
Figure 11. MAX116XX SPI Master Board Component Placement Guide—Top
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 23
Figure 12. MAX116XX SPI Master Board PCB Layout—Component Side
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 24
Figure 13. MAX116XX SPI Master Board PCB Layout—Layer 2
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 25
Figure 14. MAX116XX SPI Master Board PCB Layout—Layer 3
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 26
Figure 15. MAX116XX SPI Master Board PCB Layout—Bottom Side
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 27
Figure 16. MAX116XX SPI Master Board Component Placement Guide—Bottom
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 28
Figure 17a MAX1231B EV Kit Daughter Board Schematic (Sheet 1 of 3)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 29
Figure 17b. MAX1231B EV Kit Daughter Board Schematic (Sheet 2 of 3)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 30
Figure 17c. MAX1231B EV Kit Daughter Board Schematic (Sheet 3 of 3)
1.0”
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 31
Figure 18. MAX1231B EV Kit Daughter Board Component
Placement Guide
Figure 19. MAX1231B EV Kit Daughter Board PCB Layout—
Top
Figure 20. MAX1231B EV Kit Daughter Board PCB Layout—
Bottom
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 32
Figure 21a. MAX11633 Daughter Board Schematic (Sheet 1 of 3)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 33
Figure 21b. MAX11633 Daughter Board Schematic (Sheet 2 of 3)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 34
Figure 21c. MAX11633 Daughter Board Schematic (Sheet 3 of 3)
1.0” 1.0”
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 35
Figure 22. MAX11633 Daughter Board Component Placement
Guide
Figure 23. MAX11633 Daughter Board PCB Layout—Top
Figure 24. MAX11633 Daughter Board PCB Layout—Bottom
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 36
Figure 25a. MAX11635 Daughter Board Schematic (Sheet 1 of 2)
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 37
Figure 25b. MAX11635 Daughter Board Schematic (Sheet 2 of 2)
1.0” 1.0”
1.0”
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 38
Figure 26. MAX11635 Daughter Board Component Placement
Guide
Figure 27. MAX11635 Daughter Board PCB Layout—Top
Figure 28. MAX11635 Daughter Board PCB Layout—Bottom
PART COMPATIBLE ADC DESCRIPTION
MAX1231BEVSYS#
MAX1030BEEG+ 10-bit, 5V supply, 16-channel, 4.096V internal reference
MAX1031BEEG+ 10-bit, 3V supply, 16-channel, 2.5V internal reference
MAX1230BEEG+ 12-bit, 5V supply, 16-channel, 4.096V internal reference
MAX1231BEEG+* 12-bit, 3V supply, 16-channel, 2.5V internal reference
MAX11633EVSYS#
MAX11624EEG+ 10-bit, 5V supply, 16-channel, 4.096V internal reference
MAX11625EEG+ 10-bit, 3V supply, 16-channel, 2.5V internal reference
MAX11632EEG+ 12-bit, 5V supply, 16-channel, 4.096V internal reference
MAX11633EEG+* 12-bit, 3V supply, 16-channel, 2.5V internal reference
MAX11642EEG+ 8-bit, 5V supply, 16-channel, 4.096V internal reference
MAX11643EEG+ 8-bit, 3V supply, 16-channel, 2.5V internal reference
MAX11635EVSYS#MAX11634EEE+ 12-bit, 5V supply, 4-channel, 4.096V internal reference
MAX11635EEE+* 12-bit, 3V supply, 4-channel, 2.5V internal reference
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
________________________________________________________________ Maxim Integrated Products 39
Ordering Information/Selector Guide
*Default ADC installed on the daughter board.
#Denotes RoHS compliant.
#Denotes RoHS compliant.
+Denotes lead(Pb)-free and RoHS compliant.
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 8/11 Initial release —
1 4/12 Changed ordering part numbers from lead(Pb)-free to RoHS compliant 39
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 40
© 2012 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Evaluate: MAX1030/MAX1031/MAX1230/
MAX1231/MAX11624/MAX11625/
MAX11632–MAX11635/MAX11642/MAX11643
MAX1231B/MAX11633/MAX11635 Evaluation Systems
Revision History
