Hardware User Guide

The AD-IMP2501DBZ-SL and AD-IMP2501EBZ-SL are designed for evaluating impedance analysis technology in an application that requires a small form factor and wide frequency range. This platform is designed to get an impedance analysis evaluation set-up running quickly with only a provided USB cable and a computer. This hardware guide will walk the user through the basic setup, the varying jumper configurations for different measurement modes, and how to interface with an external load that is more specific to his or her application.

Equipment Needed

Required Equipment

  1. AD-IMP2501DBZ-SL

  2. AD-IMP2501EBZ-SL

  3. USB C Cable

  4. PC

USB drivers and terminal emulator required. Please see Software User Guide for instructions to download and install on your PC if not already installed.

Optional Equipment

  1. Programming equipment for Firmware Updates

  2. Impedance measurement accessories. Available from various test and measurement manufacturers. The test fixture accessories noted here would require a connector adapter.

  3. Calibration Standards and Accessories

  4. LCR Meter for verification

AD-IMP2501DBZ-SL Pin Configuration and Descriptions

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/ad-imp2501-sl/hardware-guide/images/ad-imp2501ebz-sl_pinout.png

Pin Number

Mnemonic

Description
P1.1, P1.2, P1.7, P1.8,
P1.17, P1.22, P1.28,
P1.31, P1.32

AGND

Ground

P1.3

L_CUR

Low Current signal

P1.4

L_POT

Voltage measurement low potential terminal

P1.5

H_CUR

High Current or signal

P1.6

H_POT

Voltage measurement high potential terminal

P1.9

SQWOUT

Square-Wave Output

P1.10

TX_OUT_SELECT

Drive Mode Select

P1.11

CAN0B_RX

Controller Area Network Receive Input
P1.12, P1.15, P1.16,
P1.18, P1.20, P1.21,
P1.23, P1.24

GPIO

General Purpose Input Output

P1.13

CAN0B_TX

Controller Area Network Transmit Output

P1.14

OWM_IO

1-Wire Controller Data

P1.19

OWM_PE

1-Wire Controller Pull-up Enable

P1.25

ST_ENABLE

Self-Test Enabled

P1.26

OUTPUT_ENABLE

CSignal Output Enabled

P1.27

ST_ENABLE_N

Self-Test Not Enabled

P1.29

MCU_RESET_N

Active-Low. External System Reset Input

P1.30

PDOWN

Power-Down Output

P2.1

I2C_SCL

I2C Serial Clock

P2.2

SPI2A_SCK

SPI Clock

P2.3

I2C_SDA

I2C Serail Data

P2.4

SPI2A_CITO

SPI Controller In Target Out

P2.5

POWER_GOOD

Power Boot-up Verification Signal

P2.6

SPI2A_SDIO2

SPI Data 2
P2.7, P2.13, P2.14,
P2.20, P2.21, P2.27,
P2.28

AGND

Ground

P2.8

SPI2A_COTI

SPI Controller Out Target In

P2.9

UART_RX

UART Receive

P2.10

SPI2B_SDIO3

SPI Data 3

P2.11

UART_TX

UART Transmit

P2.12

SPI2A_SS0

SPI Target Select 0

P2.15

SPI2A_SS1

SPI Target Select 1

P2.16

SWDIO

Serial Wire Debug I/O

P2.17

USBC_DM

USBC Differential pair D-

P2.18

SWDCLK

Serial Wire Debug Clock

P2.19

USBC_DP

USBC Differential pair D+

P2.22

VDD_3P3_D

+3.3V Digital Rail output from AD-IMP2501DBZ-SL

P2.23

VDD_3P3_A

+3.3V Analog Rail output from AD-IMP2501DBZ-SL

P2.24

VDD_1P8

+1.8V Rail output from AD-IMP2501DBZ-SL

P2.25

VCC

+5V Rail output from AD-IMP2501DBZ-SL

P2.26

VEE

-5V Rail output from AD-IMP2501DBZ-SL

P2.29, P2.30

FC_VPOWER_IN

Input Power Supply for AD-IMP2501DBZ-SL (+5V nominal)

All Other Pins

DNC

Do Not Connect

General Setup

The following figure shows the basic connections required for evaluating the ADMX2501B.

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/ad-imp2501-sl/hardware-guide/images/fishercat_hardware_setup.png

  • Insert the AD-IMP2501DBZ-SL module into the AD-IMP2501EBZ-SL board in the location shown above. Use the small white triangle on both the module and the carrier board to orient properly. The connectors are different sizes, so they can only be inserted in one orientation shown, but excessive force in the wrong orientation could damage the connectors.

  • Use the picture below and the following tables to install the correct jumpers for your desired operation. The first table is for power and general communication. The second table is for EIS on board measurements. The third table is for EIS off board measurements.

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/ad-imp2501-sl/hardware-guide/images/ad-imp2501ebz-sl_jumper_positions.png

  • Verify jumpers are installed in the locations designated by the following table for power and communication.

Jumper Designation

Install Position

Description

P4

Not Installed

Programming Header

P5

Not Installed

Debug UART RX

P6

Not Installed

Debug UART TX

P11

Pins 1-2

USB C Power Supply

P14

Pins 1-2

USB C DM

P15

Pins 1-2

USB C DP

P16

Pins 1-2

FTDI UART RX

P17

Pins 1-2

FTDI UART TX

P18

Pins 1-2

FTDI Power

P20

Not Installed

CAN Bus

  • For EIS on board measurements install jumpers according to the following table. Note that to select an onboard load, both jumpers, corresponding to the appropriate load, need to be installed. If the user selects their own component in position 8, no jumpers should be installed on P21 or P22.

Jumper Designation

Install Position

Description

P27

Pins 1-2

EIS HCUR

P28

Pins 1-2

EIS HPOT

P29

Pins 1-2

EIS LPOT

P30

Pins 1-2

EIS LCUR

P23

Pins 1-2

HCUR to HPOT connection

P24

Pins 1-2

LCUR to LPOT connection

P21
Selectable
Pins 1-2
Pins 3-4
Pins 5-6
Pins 7-8
Pins 9-10

10k ohms
1k ohms
100 ohms
10 ohms
0 ohms

P22
Selectable
Pins 1-2
Pins 3-4
Pins 5-6
Pins 7-8
Pins 9-10

10k ohms
1k ohms
100 ohms
10 ohms
0 ohms

P8

Not Installed

User Selectable Load

P12
Pins 1-2
Pins 5-6
Pins 9-10
Pins 13-14
EIS HCUR SMA/Onboard
EIS HPOT SMA/Onboard
EIS LPOT SMA/Onboard
EIS LCUR SMA/Onboard

  • For EIS off board measurements using the SMA connectors, install jumpers according to the following table. Connect SMA cables to J1-J4, and verify no jumpers are installed on P8, P21, P22, P23, and P24.

Jumper Designation

Install Position

Description

P27

Pins 1-2

EIS HCUR

P28

Pins 1-2

EIS HPOT

P29

Pins 1-2

EIS LPOT

P30

Pins 1-2

EIS LCUR

P23

Not Installed

HCUR to HPOT connection

P24

Not Installed

LCUR to LPOT connection

P21

Not Installed

10k ohms
1k ohms
100 ohms
10 ohms
0 ohms

P22

Not Installed

10k ohms
1k ohms
100 ohms
10 ohms
0 ohms

P8

Not Installed

User Selectable Load

P12
Pins 1-2
Pins 5-6
Pins 9-10
Pins 13-14
EIS HCUR SMA/Onboard
EIS HPOT SMA/Onboard
EIS LPOT SMA/Onboard
EIS LCUR SMA/Onboard

  • For EIS off board measurements using the DIN connector, only change jumpers on P12 according to the following table. Connect DIN cable to P7.

Jumper Designation

Install Position

Description

P12
Pins 3-4
Pins 7-8
Pins 11-12
Pins 15-16
EIS HCUR DIN
EIS HPOT DIN
EIS LPOT DIN
EIS LCUR DIN

  • Connect the USB C cable to P3 on AD-IMP2501EBZ-SL and the host PC.

  • An LED on the top side of the AD-IMP2501DBZ-SL should turn on, blink twice, and turn off. It should now only blink when data is being processed.