Analog Devices EV-AD74412RSDZ User manual

EV-AD74412RSDZ User Guide
UG-1634
One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Evaluating the AD74412R Quad-Channel, Software Configurable Input/Output
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 15
FEATURES
Fully featured evaluation board for the AD74412R
On-board 2.5 V ADR4525 reference
SPI
PC-based software for control
EVALUATION KIT CONTENTS
EV-AD74412RSDZ evaluation board
EQUIPMENT NEEDED
EVAL-SDP-CS1Z
Benchtop power supply and connector cables
DOCUMENTS NEEDED
AD74412R data sheet
SOFTWARE NEEDED
AD74412R evaluation software for control
GENERAL DESCRIPTION
The EV-AD74412RSDZ (see Figure 1) is a fully featured
evaluation board that can be used to evaluate the features of the
AD74412R. The AD74412R is a quad-channel, software
configurable, input/output device. The device has functionality
for analog output, analog input, digital input, and resistance
temperature detector (RTD) measurements integrated into a
single-chip solution with a serial peripheral interface (SPI)-
compatible interface.
The EV-AD74412RSDZ can be controlled via a system
demonstration platform (SDP). The EVAL-SDP-CS1Z (SDP-S)
board allows the EV-AD74412RSDZ to be controlled via the
USB port of a PC using the AD74412R evaluation software.
The EVAL- AD74412RSDZ requires an AVDD operating supply
of 14 V to 26.4 V. When the EV-AD74412RSDZ is connected to
the PC, the PC provides power to the SDP-S board.
For full details on the AD74412R, see the AD74412R data sheet,
which must be consulted in conjunction with this user guide
when using the EV-AD74412RSDZ.
EVALUATION BOARD PHOTOGRAPH
21413-001
Figure 1.

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 2 of 15
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents................................................................... 1
Equipment Needed........................................................................... 1
Documents Needed.......................................................................... 1
Software Needed............................................................................... 1
General Description......................................................................... 1
Evaluation Board Photograph......................................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware............................................................ 3
Power Supplies .............................................................................. 3
Reference Options ........................................................................ 3
Output Channels .......................................................................... 3
SPI Communication..................................................................... 3
Test Points ......................................................................................3
Link Configuration Options........................................................3
Software Quick Start Procedures ....................................................5
Accessing the AD74412R Evaluation Software Graphical User
Interface (GUI) ..............................................................................5
Configuring the Board .................................................................5
Using the Software for Evaluation...............................................5
Example Sequence.........................................................................8
Evaluation Board Schematics and Artwork...................................9
Ordering Information.................................................................... 14
Bill of Materials........................................................................... 14
REVISION HISTORY
9/2019—Revision 0: Initial Version

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 3 of 15
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EV-AD74412RSDZ comes with a single power supply
connector that provides power directly to the AVDD pin of the
AD74412R. Set this supply as described in the AD74412R data
sheet.
The AVDD supply on the EV-AD74412RSDZ powers an on-
board regulator (ADP2360), which generates a 5 V supply to the
EV-AD74412RSDZ (see Figure 2). The 5 V supply can be used
for the following purposes:
Power a 2.5 V external reference (ADR4525). The
ADR4525 can be used as an alternative to the AD74412R
on-chip reference.
Power a 3.3 V regulator (ADP1720). The 3.3 V from the
regulator powers the DVCC and IOVDD supplies of the
AD74412R.
Figure 2 shows a simplified drawing of the power connections
on the EV-AD74412RSDZ.
REFERENCE OPTIONS
By default, the EV-AD74412RSDZ is configured to use the
AD74412R on-chip reference by shorting the REFOUT pin to
the REFIN pin. There is also an external reference option
available on the EV-AD74412RSDZ. The ADR4525 can be used
instead of the internal reference. The appropriate jumpers must
be connected if using the external reference. See Table 1 for the
specific link options and functions.
OUTPUT CHANNELS
The four channels of the AD74412R are configured as described
in the AD74412R data sheet. Figure 13 shows the schematic
details for all four channels.
There are four channel screw terminal connectors on the EV-
AD74412RSDZ. These terminals (CH_A, CH_B, CH_C, and
CH_D) are used to connect the desired loads to the four
channels of the AD74412R.
SPI COMMUNICATION
The SDP-S board handles the communication to the EV-
AD74412RSDZ via the PC. By default, the SDP-S board controls
the SPI communication, controls the RESET pin (driven high)
and LDAC pin (driven low), and monitors the ALERT pin,
ADC_RDY pin, and the GPO_x pins of the AD74412R.
A reset button (S1) is also available on the EV-AD74412RSDZ.
The EV-AD74412RSDZ supports the use of an Arduino® board
(such as the EVAL-ADICUP3029) when connected to the
headers provided. See Table 1 for the necessary links to the
Arduino header.
TEST POINTS
Multiple test points are available on the EV-AD74412RSDZ.
Debug access is available for all pins on the AD74412R and on
the four channel screw terminals. The test points are located
adjacent to the relevant pins on the AD74412R.
LINK CONFIGURATION OPTIONS
The JPx and Px jumpers must be set properly for operation of
the EV-AD74412RSDZ before using the EV-AD74412RSDZ. The
functions and default states of these options are listed in Table 1.
Before applying power and signals to the EV-AD74412RSDZ,
ensure that all links are set to the default positions, as defined in
Table 1.
REFOUT REFIN
DVCC AVDD
IOVDD
5V
3.3V
EXTERNAL
REFERENCE (2.5V)
SUPPLY CONNECTOR
14V TO 26.4V
ADP2360
ADP1720
AD74412R
ADR4525
21413-002
Figure 2. EV-AD74412RSDZ Simplified Power Diagram

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 4 of 15
Table 1. EV-AD74412RSDZSDZ Link Option Functions
Link Function Default Position
JP1 When inserted, the AVDD supply is used to power the ADP2360. Inserted
JP2 When inserted, 5 V is supplied by the Arduino connector. Not inserted
When not inserted, JP3 can be used to provide the 5 V supply instead.
JP3 When inserted, 5 V is supplied by the ADP2360. Inserted
When not inserted, JP2 can be used to provide the 5 V supply instead.
JP4 When inserted, 5 V is used to power the ADP1720. Inserted
When not inserted, no power is provided to the ADP1720.
JP5 When inserted, the DVCC voltage is supplied by the Arduino connector. Not inserted
When not inserted, JP6 can be used to provide the DVCC supply instead.
JP6 When inserted, the DVCC voltage is supplied by the ADP1720. Inserted
When not inserted, the DVCC supply can be supplied by the Arduino connector instead.
JP7 When inserted the IOVDD voltage is connected to the DVCC voltage. Inserted
When not inserted, no power is applied to the IOVDD pin.
JP8 When inserted, the REFIN pin is tied to the output of the ADR4525. Not inserted
JP9 When inserted, the REFIN pin is tied to the REFOUT pin (the internal reference of the AD74412R). Inserted
JP10 When inserted, 3.3 V is provided by the SDP-S board. Inserted
When not inserted, JP11 can be used to provide the 3.3 V supply instead.
JP11 When inserted, 3.3 V is provided by the Arduino connector. Not inserted
When not inserted, JP10 can be used to provide the 3.3 V supply instead.
JP12 When inserted, the AD74412R reset can be triggered by the Arduino reset function. Not inserted
JP13 When inserted, the AD74412R reset can be provided by the reset button on the EV-AD74412RSDZ. Inserted
JP14 When inserted, the AD74412R reset can be triggered by an Arduino general-purpose input/output (GPIO). Not inserted
JP15 When inserted, the 5 V supply can be used to supply the SDP-S board. Not inserted
P6 Can be used to connect or to bypass the optional P-channel field effect transistor (PFET) for low resistive
loads on Channel A of the AD74412R.
PFET connected
Can be used to connect the AD74412R to the external screw terminal via the external PFET by connecting
Pin 1 to Pin 2, Pin 3 to Pin 4, and Pin 5 to Pin 6.
Can be used to bypass the external PFET by connecting Pin 1 and Pin 3.
P7 Can be used to connect or bypass the optional PFET for low resistive loads on Channel B of the AD74412R. PFET connected
Can be used to connect the AD74412R to the external screw terminal via the external PFET by connecting
Pin 1 to Pin 2, Pin 3 to Pin 4, and Pin 5 to Pin 6.
Can be used to bypass the external PFET by connecting Pin 1 and Pin 3.
P8 Can be used to connect or to bypass the optional PFET for low resistive loads on Channel C of the AD74412R. PFET connected
Can be used to connect the AD74412R to the external screw terminal via the external PFET by connecting
Pin 1 to Pin 2, Pin 3 to Pin 4, and Pin 5 to Pin 6.
Can be used to bypass the external PFET by connecting Pin 1 and Pin 3.
P9 Can be used to connect or to bypass the optional PFET for low resistive loads on Channel D of the AD74412R. PFET connected
Can be used to connect the AD74412R to the external screw terminal via the external PFET by connecting
Pin 1 to Pin 2, Pin 3 to Pin 4, and Pin 5 to Pin 6.
Can be used to bypass the external PFET by connecting Pin 1 and Pin 3.

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 5 of 15
SOFTWARE QUICK START PROCEDURES
ACCESSING THE AD74412R EVALUATION
SOFTWARE GRAPHICAL USER INTERFACE (GUI)
The AD74412R evaluation software is used to communicate
with the EV-AD74412RSDZ. To download the software
executable, go to www.analog.com/AD74412R.
CONFIGURING THE BOARD
To set up the EV-AD74412RSDZ, take the following steps:
1. Connect a USB cable to the PC and then to the SDP-S board.
2. Connect the SDP-S board to the EV-AD74412RSDZ. The
PC recognizes the EV-AD74412RSDZ.
3. Power up the EV-AD74412RSDZ with the relevant power
supplies.
4. If not opened already, open the AD74412R evaluation
software GUI. The GUI displays a green indicator to
confirm that the AD74412R is connected (see Figure 3).
5. Click Start to begin configuration.
21413-003
Figure 3. AD74412R Evaluation Software Start Page
USING THE SOFTWARE FOR EVALUATION
Configure Tab
The Configure tab is used to configure the four channels of the
AD74412R. Each channel can be configured as described in the
AD74412R data sheet. The dropdown menus are used to
configure the required use case (see Figure 4).
21413-004
Figure 4. Channel Use Case View
When the use case is selected, the associated advanced settings
display (see Figure 5). The gear icon in the top right corner of
the page allows the user to toggle between the main settings and
the advanced settings.
Click Apply to update the device with the selected settings.
21413-005
Figure 5. Channel Use Case Advanced Settings
View Results Tab
When the channel configuration is applied, click the View
Results tab to see the channel monitor. Results from each
channel are shown in a separate graph (see Figure 6).
Diagnostics Tab
In the Diagnostics tab, click the test points to enable
measurements of the required diagnostics. Up to four
diagnostics can be enabled at once (see Figure 7).

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 6 of 15
21413-006
Figure 6. View Results Tab
21413-007
Figure 7. Diagnostics Tab

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 7 of 15
Register Map
The register map can also be used to interface directly to the
AD74412R.
Immediate mode allows register writes to execute as soon as the
bit fields are changed.
In deferred mode, no register edits are applied to the AD74412R
until the Write Reg ister button is clicked. The Read Register
button must also be clicked in deferred mode to manually read
from the device (see Figure 9).
Any changes made on the register map are automatically
reflected in the Configure tab. Click Apply in the Configure
tab to display results in the View Results tab.
Scripting Tab
The scripting tool allows simple scripts to be programmed,
executed, and saved. When a script is written in the left panel, click
the Run icon (see Figure 8) to execute the writes to the AD74412R.
The panel on the right side of the page displays the results from
any readbacks executed in the script. Commands supported by
this page are currently limited to write and read operations (see
Figure 10). The scripting feature has autocomplete enabled
by default and validates the written syntax. The user can save
and load configurations.
21413-008
Figure 8. Run Icon
21413-009
Figure 9. Register Map Display
21413-010
Figure 10. Scripting Page Display

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 8 of 15
EXAMPLE SEQUENCE
This section demonstrates how to configure the AD74412R for
a selected function. The AD74412R data sheet must be consulted
when programming the device.
Force Voltage Measure Current Example
This example is used to configure the AD74412R in voltage
output mode, sourcing 11 V across the Channel A screw terminals.
This example also measures the corresponding current through
the RSENSE resistor using the on-chip, analog-to-digital converter
(ADC). The ADC measurement is completed using a conversion
rate of 20 SPS with 50 Hz and 60 Hz rejection enabled. See Table 2
for the full list of commands.
A suitable load must be placed across the screw terminals. Refer
to the AD74412R data sheet for more information.
To complete the register write steps shown in Table 2 using the
AD74412R GUI, take the following steps:
1. In the Configure tab, use the dropdown menus to select
Actuators and Voltag e Output (see Figure 4).
2. In the Advanced Settings panel, set the DAC Code slider
to 8191 (11 V).
3. Click Apply. This executes all writes required to configure
the device and to enable ADC conversions in the default
mode. This configuration allows the AD74412R to measure
voltage across the RSENSE resistor in the 0 V to 2.5 V range at
a 20 SPS conversion rate.
4. Click the View Results tab to view the ADC results.
See Figure 10 for the corresponding script.
Table 2. Force Voltage Measure Current Instruction Set
Instruction Instruction Description W/R1
Register Name
and Address Data Notes
1 Configure Channel A in
voltage output mode
W CH_FUNC_SETUPA,
Address 0x01
0x0001
2 Write full-scale code to
DAC_A to generate 11 V
W DAC_CODEA,
Address 0x16
0x1FFFF LDAC pin voltage = 0 V to allow outputs to be updated instantly.
3 Measure 11 V across
Channel A screw terminals
N/A2N/A2N/A2Use handheld meter to verify voltage.
4 Enable ADC to convert and
measure current through
RSENSE resistor
W ADC_CONV_CTRL,
Address 0x23
0x0201 When the write in Instruction 1 is executed, the ADC automatically
configures to measure voltage across the RSENSE resistor in a 0 V to
2.5 V range.
5 Read ADC results R ADC_RESULTA,
Address 0x26
6 Calculate current through
RSENSE resistor using the
equation available in the
AD74412R data sheet
N/A2N/A2N/A2_
65535











MIN
RSENSE SENSE
AD CODE
V Voltage Range
IR
where:
IRSENSE is the current through the RSENSE resistor.
VMIN is −2.5 V, the minimum voltage is in the −2.5 V to 2.5 V range.
The voltage range is 5 V.
7 Stop ADC conversions W ADC_CONV_CTRL,
Address 0x23
0x0000
8 Program DAC_A to zero scale W DAC_CODEA,
Address 0x16
0x0000 Cleanup of DAC code and channel configuration is recommended
before reprogramming the device.
9 Reset Channel A to
high-Z mode
W CH_FUNC_SETUPA,
Address 0x01
0x0000
1W is write and R is read.
2N/A is not applicable.

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 9 of 15
EVALUATION BOARD SCHEMATICS AND ARTWORK
DVCC
VIN = 3V TO 15V
DECOUPLING
SSTIME: 8MS
VIN = 4V TO 28V
5V BOARD SUPPLY
CHARGE PUMP FLYCAP
AD74412RSUPPLIES
EXTERNAL REFERENCE
IOVDD
AVDD
ILIMIT: 140MA
M22-2010205
M22-2010205
22MΩ
AD74412R
0.1µF
REDRED
C0805H53
RED
0Ω
0.01µF
1µF
ADP1720ARMZ-3.3-R7
10µF
ADP2360ACPZ-5.0
M22-2010205
M22-2010205
M22-2010205
M22-2010205
GND
10µF
RED
50V 0.1µF
GND
GND
GND
1µF
2.2µF
GND
2.2µF
RED
GND GND
10µF
GND
GND
RED
0.1µF 50V C0805H53
GND
1µF
GND GND
ADR4525BRZ
GND
50V
GND
0Ω
GND
0.1µF 50V
0.1µF 50V
GND
GND
RED
RED
RED
M22-2010205
RED
50V
10µF
C0805H53
10µF
0.1µF
100µH
C0805H53
GND
RED
10µF
C0805H53
10µF
1759017
0.33µF
M22-2010205
RED
RED
M22-2010205
RED
GNDGND
0.1µF
C0805H53
0.1µF
0.1µF
0.1µF
5V_BOARD
JP3
C19
C20
AVSSALDO1V8
JP2
R1
C5
U2
U3
L1
AGND2
AGND_SENSE
JP1
AGND1
AVDD
C24
C13
C8
C6
C11
C22
C16
C17
C1
R2
C2
U1
R3
C18
U4
C21
C14
C4 C7
C23
C10
AVDD_SUPPLY
C15
JP4
JP5
JP7
JP6
JP9
DVCC
IOVDD
ALDO5V DLDO1V8
JP8
ADR_REF REFOUT
REFIN
C3
C9
C12
5V_BOARD
5V_SHIELD
AVDD
CASCODE_D
CCOMP_D
/ADC_RDY
CASCODE_B
DVCC
CPUMP_N
CPUMP_NCPUMP_P
AVSS
VIOUTP_B
SENSEH_A
SENSELF_A
VIOUTP_A
SENSELF_B
CCOMP_A
/LDAC
VIOUTN_A
DLDO1V8 ALDO1V8
REFOUT
ADR_REF
5V_BOARD
REFIN
ADR_REF
SENSEL_A SENSEL_B
SENSEHF_B
SENSEH_B
CCOMP_B
GPO_A
GPO_B
GPO_C
GPO_D
CPUMP_P
VIOUTP_D
SDO
/ALERT
IOVDD
DVCC
DLDO1V8
DGND
DGND
PAD
SDI
/RESET
SCLK
AGND2
/SYNC
AVSS
AGND3
REFIN
REFOUT
CCOMP_C
CASCODE_C
SENSEH_C SENSEHF_C SENSEHF_D SENSELF_D
VIOUTN_B
SENSELF_C
SENSEHF_A
SENSEL_C SENSEL_D
DVCC
5V_BOARD
IOVDD
CASCODE_A
VIOUTP_C
ALDO1V8
AGND1
AVDD
AVDD
SENSEH_D
3.3V_SHIELD
ALDO5V
ALDO5V
VIOUTN_C VIOUTN_D AVDD AGND_SENSE
DVCC
2
29
1
2
12
2
1
3
1
1
2
1
1
1
2
1
11
1 1
1
2
7
5
3
1
4
6
PAD
64
63
62
61
60
59
58
56
55
54
53
52
51
50
49
48 47 45 44 43 41 40 36 35 34 33
32
31
30
28
27
25
24
23
22
21
20
19
18
16 15 14 13 11 10
9 8 6 5 4 2 1
17
26
46
1
742
1
1
2
1
2
38
57
1
2
37
1 2
8
1
2
39
NC
NC
NC
NC
VIN
GND
TP
VOUT
PAD
CASCODE_A
CCOMP_A
RESET_N
SYNC_N
SDI
SCLK
LDAC_N
DLDO1V8
DVCC
IOVDD
DGND
ALERT_N
ADC_RDY_N
SDO
CCOMP_D
CASCODE_D
SENSEH_D
SENSEHF_D
SENSEL_D
SENSELF_D
VIOUTP_D
VIOUTN_D
AVDD
AGND_SENSE
AGND2
RESERVED
VIOUTN_C
VIOUTP_C
SENSELF_C
SENSEL_C
SENSEHF_C
SENSEH_C
CASCODE_C
CCOMP_C
REFOUT
REFIN
AGND3
AVSS
CPUMP_N
DGND
CPUMP_P
DVCC
GPO_D
GPO_C
GPO_B
GPO_A
CCOMP_B
CASCODE_B
SENSEH_B SENSEHF_B SENSEL_B SENSELF_B VIOUTP_B VIOUTN_B ALDO1V8 ALDO5V AGND1 AVDD VIOUTN_A VIOUTP_A SENSELF_A SENSEL_A SENSEHF_A SENSEH_A
GND
EN OUT IN
PAD
VIN
SW
PGND
SS FB ITH
PG
EN
21413-011
Figure 11. AD74412R, Supply and Reference Options

UG-1634 EV-AD74412RSDZ User Guide
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OPENDRAIN PULLUPS
FLEXIBILITY TO MODIFY EEPROM ADDRESS
A5 A0
D0 D13 D7
SCHEMATIC PAGE - SDP/DIGITAL INTERFACE
/RESET
DIGITAL PINS
GPO LEDS
D8
ARDUINO UNO CONNECTORS
GND
GND
SSQ-106-03-G-S
FX8-120S-SV(21)
M22-2010205
M22-2010205
M22-2010205 M22-2010205
GND
100kΩ
SSQ-108-03-G-S
M22-2010205M22-2010205
DNI100kΩ
DNI
GND
24LC32A/SN
100kΩ
SSQ-108-03-G-S
SSQ-110-03-G-S
B3U-1000P
10kΩ10kΩ
0Ω
0Ω
0Ω
0Ω
0Ω 0Ω 0Ω
0Ω
0Ω
0Ω
0Ω
GND
GND
0.1µF
50V
C0805H53
GND
GND
0Ω
1kΩ
1kΩ
1KΩ
1kΩ
VLMS30J1L2-GS08
VLMS30J1L2-GS08
VLMS30J1L2-GS08
VLMS30J1L2-GS08
GND
P14
R23
R13
P1
JP15
JP14
JP13 JP12
JP11
JP10
R20 R19
P17
P16
P15
R7
R26
R25
R22
C25
R21 R24
R4 R9
U5
R17 R18
R8
R10
R11 R12
R14
R16
R15
R5
R6 S1
DS4
DS3
DS2
DS1
RESET_SHIELD
SCLK SDI SDO
3.3V_SHIELD
RESET_GPIO
SDI
3.3V_SDP
RESET_SHIELD RESET_BUTTON
RESET_GPIO
3.3V_SDP
3.3V_SHIELD
3.3V_BRD
IOVDD
/LDAC
3.3V_BRD
3.3V_BRD
/SYNC GPO_D GPO_C GPO_B GPO_A /AD C_RDY /ALERT
5V_SHIELD
/ALERT
/RESET
/AD C_R DY
/ADC_RDY GPO_B
5V_BOARD
SCLK
SDO
GPO_C GPO_A
/ALERT
GPO_D
/SYNC
/LDAC
/RESET
GPO_D GPO_A GPO_C GPO_B
7 3
3
1
2 1
10
61
58
117 79 104 87 97
24
94 65 116
1 5
62
59
72
49
73
48
89
30 29 92
90
32
88
31
91
38 37
85
39
84 83
34 33
82 64
35 41 80 42 57 60
100
21
99
26 95 27
7114 8113
112
10 111
110
12 13 108 14 107 15 16 105 18 103 19 102 20 101 22 25 96
120 119 70 68 67 66
55 54 53 51 50
2
74
47
76
45
77
44
78
43
118 115 109 98 86 81 75 69 63
52 46 40 36 28 23 17 11
6 4 3
56
71 93 106
9
1
3
1
222
2
11
2
3 1
2
8 7
2
6
1 2 3 4 5 6
4 5 6 8 9
4 5 6
4 5 7 8
11
7
4
8
5
6 2 1
A
A
A
A
C
C
C
C
2
VCC
WP SCL
SDA
VSS
A2 A1 A0
SPI_SEL_A_N
CLKOUT
NC NC
GND GND
VIO
GND
PAR_D22 PAR_D20 PAR_D18 PAR_D16 PAR_D15
GND
PAR_D12 PAR_D10
PAR_D8 PAR_D6
GND
PAR_D4 PAR_D2 PAR_D0
PAR_WR_N
PAR_INT
GND
PAR_A2 PAR_A0
PAR_FS2
PAR_CLK
GND
SPORT_RSCLK
SPORT_DR0 SPORT_RFS
SPORT_TFS SPORT_DT0
SPORT_TSCLK
GND
SPI_MOSI SPI_MISO
SPI_CLK
GND
SDA_0
SCL_0 GPIO1 GPIO3 GPIO5
GND
GPIO7
TMR_B
TMR_D
NC
GND
NC NC NC
WAKE_N
SLEEP_N
GND
UART_TX
BMODE1RESET_IN_N
UART_RX GND RESET_OUT_N EEPROM_A0 NC NC NC GND NC NC TMR_C TMR_A GPIO6 GND GPIO4 GPIO2 GPIO0 SCL_1 SDA_1 GND SPI_SEL1/SPI_SS_N SPI_SEL_C_N SPI_SEL_B_N GND SERIAL_INT SPI_D3 SPI_D2 SPORT_DT1 SPORT_DR1 SPORT_TDV1 SPORT_TDV0 GND PAR_FS1 PAR_FS3 PAR_A1 PAR_A3 GND PAR_CS_N PAR_RD_N PAR_D1 PAR_D3 PAR_D5 GND PAR_D7 PAR_D9 PAR_D11 PAR_D13 PAR_D14 GND PAR_D17 PAR_D19 PAR_D21 PAR_D23 GND USB_VBUS GND GND NC VIN
21413-016
Figure 12. Digital Pins Including SDP-S Board and Arduino Board Connections

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 11 of 15
CLOAD
CLOAD
CLOAD
CHANNEL C
CHANNEL A
GOLD PINS FOR
COMPENSATION CAPACITOR
GOLD PINS FOR
COMPENSATION CAPACITOR
CONNECT 1 TO 2, 3 TO 4, 5 TO 6
TO USE PMOS:
CONFIGURING PX,PY, PZ, PA
GOLD PINS FOR
COMPENSATION CAPACITOR
CONNECT 1 TO 3
ALL COMPONENTS TO BE CONFIRMED!
CHANNEL EXTERNAL COMPONENTS
TO BYPASS PMOS:
CHANNEL D
CHANNEL B
CLOAD
DNI
SMCJ40CA-TR
0.068µF
0.068µF
1759017
RED
0.068µF
100Ω
FDC5614P
SMCJ40CA-TR
0.001µF
DNI
BAV99WT1G
10kΩ
10kΩ
0.01µF
RED
GND
1759017
10kΩ
0.001µF
GND
TSW-103-08-G-D
0.001µF
DNI
0.001µF
TSW-103-08-G-D
100Ω
FDC5614P
SMCJ40CA-TR
0.068µF
100Ω
FDC5614P
TSW-103-08-G-D
SMCJ40CA-TR
FDC5614P
BAV99WT1G
100Ω
2kΩ
0.01µF
0.01µF
RED
TSW-103-08-G-D
RED
DNI
RED
DNI
RED
RED
DNI
RED
DNI
RED
RED
DNI
RED
DNI
RED
RED
DNI
DNI
RED
RED
DNI
RED
RED
RED
0.01µF
2kΩ
0.01µF
GND
GND
10kΩ
2kΩ
2kΩ
1759017
0.01µF
GND
10kΩ
0.01µF
GND
10kΩ
2kΩ
2kΩ
1759017
BAV99WT1G
GND
RED
RED
RED
RED
RED
GND
RED
GND
2kΩ
2kΩ
GND
GND
GND
RED
RED
BAV99WT1G
10kΩ
RED
10kΩ
0.01µF
RED
C41
C40
C38
C39
SENSEH_A
I/OP_B
I/ON_C
I/OP_D
R46
C37
SENSEHF_D
VIOUTN_D
SENSELF_D
SENSEH_C
CR4
D4
R45
D3
C36
C33
C30
D2
R36
Q2
P7
D1
C31
R35 VIOUTN_C
R37
R40
P6
SENSEHF_A
I/OP_A
CR1
SENSEH_D
SENSEHF_C
SENSEL_C
SENSEHF_B
SENSEL_B
SENSEH_B
R29
SENSEL_A
VIOUTN_A
SENSEL_D
CR2
Q3
CR3
Q4
CH_C
CH_D
R31
R32
R33
R34
C29 C28
C32
R38
C34C35
R44
R43
R42
R41
Q1
R27
P12
P13
R39
VIOIUTN_B
SENSELF_B
I/ON_B
I/OP_C
SENSELF_C
I/ON_D
R30
R28
SENSELF_A
C27 C26
I/ON_A
CH_A
CH_B SENSEHF_D
SENSEH_D
VIOUTN_D
SENSEL_D
SENSELF_C
CCOMP_D
VIOUTP_C
CCOMP_B
VIOUTP_B
CCOMP_A
CASCODE_C
CCOMP_C
SENSEL_C
SENSEHF_C
SENSEH_C
VIOUTN_C
SENSEHF_B
SENSEH_B
VIOUTN_B
SENSEHF_A
SENSEH_A
VIOUTN_A
AGND_SENSE
SENSELF_D
SENSEL_B
SENSELF_B
AGND_SENSE
CASCODE_B
S
ENSEL_A
VIOUTP_A
AGND_SENSE
CASCODE_A
AGND_SENSE
S
ENSELF_A
CASCODE_D
VIOUTP_D
1
1
21
12
2
1
3
6
21
1
2
1
1
1
1
1
5
3
2
1
2
1
1
1
1
1
2
3
1
3
21
1
2
25
4
1
25
6
3
3
6
4
21
5
3
6
4
21
5
3
6
4
21
5
3
6
4
21
4
3
6
5
2
1
4
3
6
5
2
1
2
1
1
4
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
D
S
D
G
D
S
D
G
D
S
D
G
D
S
D
G
21413-017
Figure 13. Channel Input/Output Circuitry Including Screw Terminals

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 12 of 15
21413-012
Figure 14. Layer 1, Top Layer
21413-013
Figure 15. Layer 2, Ground Layer

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 13 of 15
21413-014
Figure 16. Layer 3, Power Layer
21413-015
Figure 17. Layer 4, Bottom Layer

UG-1634 EV-AD74412RSDZ User Guide
Rev. 0 | Page 14 of 15
ORDERING INFORMATION
BILL OF MATERIALS
Table 3.
Qty Reference Designator Description Manufacturer Part Number
30 5V_BOARD, ADR_REF, AGND1, AGND2,
AGND_SENSE, ALDO1V8, ALDO5V,
AVDD, AVSS, DLDO1V8, DVCC, I/ON_A,
I/ON_B, I/ON_C, I/ON_D, I/OP_A,
I/OP_B, I/OP_C, I/OP_D, IOVDD, REFIN,
REFOUT, SENSEHF_A, SENSEHF_B,
SENSEHF_C, SENSEHF_D, SENSELF_A,
SENSELF_B, SENSELF_C, SENSELF_D
Red test points VeroTechnologies 20-313137
5 AVDD_SUPPLY, CH_A, CH_B, CH_C,
CH_D
Printed circuit board (PCB)
connectors, 2-position header
Phoenix Contact 1759017
1 C1 10 μF capacitor TDK C5750X7S2A106M230KB
7 C7, C10, C14, C17, C18, C22, C25 0.1 μF capacitors AVX Corporation 08055C104K4T4A
2 C6, C11 2.2 μF capacitors YAGEO CC0805KKX7R6BB225
4 C3, C9, C12, C20 0.1 μF capacitors Dielectric Labs P62BN820MA2636
2 C8, C13 10 μF capacitors Murata GRM21BR61C106KE15L
1 C15 10 μF capacitor Murata GRM32ER71H106KA12L
3 C2, C4, C16 10 μF capacitors Samsung CL31B106KBHNNNE
3 C19, C21, C23 1 μF capacitors Murata GCM21BR71E105KA56L
1 C24 0.33 μF capacitor AVX 0603YD334KAT2A
9 C5, C26, C27, C28, C29, C32, C33, C34,
C35
0.01 μF capacitors Murata GRM2195C1H103JA01D
4 C30, C31, C36, C37 0.068 μF capacitors TDK C3216C0G1H683J
4 C38, C39, C40, C41 0.001 μF capacitors Panasonic ECH-U1H102JX5
4 CR1, CR2, CR3, CR4 Screw terminal isolation diodes ON Semiconductor BAV99WT1G
4 D1, D2, D3, D4 Transient voltage suppressors (TVSs) ST Microelectronics SMCJ40CA-TR
4 DS1, DS2, DS3, DS4 Red light emitting diodes (LEDs) VISHAY VLMS30J1L2-GS08
15 JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8,
JP9, JP10, JP11, JP12, JP13, JP14, JP15
2-pin jumpers HARWIN M22-2010205
1 L1 100 μH inductor Wurth Elektronik
Group
744043101
1 P1 120-pin connector HRS FX8-120S-SV(21)
4 P6, P7, P12, P13 6-pin jumpers SAMTEC TSW-103-08-G-D
2 P14, P17 8-pin connectors SAMTEC SSQ-108-03-G-S
1 P15 6-pin connector SAMTEC SSQ-106-03-G-S
1 P16 10-pin connector SAMTEC SSQ-110-03-G-S
4 Q1, Q2, Q3, Q4 Power metal-oxide semiconductor
field effect transistors (MOSFETs)
Fairchild
Semiconductor
FDC5614P
1 R1 0 Ω resistor Panasonic ERJ-6GEY0R00V
12 R4, R5, R6, R7, R9, R10, R11, R12, R13,
R14, R15, R16
0 Ω resistors Multicomp (SPC) MC0603WG00000T5E-TC
3 R8, R18, R19 100 kΩ resistors Multicomp (SPC) MC 0.063W 0603 1% 100K
1 R2 22 mΩ resistor Stackpole
Electronics, INC.
RMCF 1/10 22M 5% R
2 R21, R24 10 kΩ resistors Panasonic ERJ-3EKF1002V
4 R22, R23, R25, R26 1 kΩ resistors Panasonic ERJ-3EKF1001V
4 R27, R31, R37, R41 2 kΩ resistors TE Connectivity RN73C2A2K0BTG
8 R28, R30, R32, R34, R38, R40, R42, R44 10 kΩ resistors Panasonic ERJ-6ENF1002V
4 R29, R33, R39, R43 2 kΩ resistors Panasonic ERJ-6ENF2001V
1 R3 0 Ω resistor Panasonic ERJ-8GEY0R00V
4 R35, R36, R45, R46 100 Ω resistors YAGEO RT0805BRB07100RL
1 S1 Switch OMRON B3U-1000P

EV-AD74412RSDZ User Guide UG-1634
Rev. 0 | Page 15 of 15
Qty Reference Designator Description Manufacturer Part Number
1 U1 Software configurable input/output Analog Devices AD74412RBCPZ
1 U2 3.3 V Regulator Analog Devices ADP1720ARMZ-3.3-R7
1 U3 Buck regulator Analog Devices ADP2360ACPZ-5.0-R7
1 U4 External reference Analog Devices ADR4525BRZ
1 U5 I2C serial electrically erasable
programmable read-only memory
(EEPROM)
Microchip
Technology
24LC32A/SN
5 Not applicable Terminal plug Phoenix Contact 1757019
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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UG21413-0-9/19(0)