UG-855

EVAL-AD7124-4SDZ User Guide

Rev. 0 | Page 6 of 29

On-Board Connectors

Table 2 provides information about the external connectors on the EVAL-AD7124-4SDZ.

Table 2. On-Board Connectors

Connector

Function

J1

A 120-pin connector that mates with the EVAL-SDP-CB1Z (controller board).

J2

Straight PCB mount SMB/SMA jack for master clock (not inserted). The EVAL-AD7124-4SDZ has the footprint to include an

SMA/SMB connector, if an external clock source is being used to provide the master clock to the ADC.

J3

Bench top power supply voltage input. Apply 7 V to 9 V and GND (0 V) to this connector to power the evaluation board.

J5

Wall wart (dc plug) power supply voltage input. Apply 7 V to 9 V and GND (0 V) to this connector to power the evaluation board.

J6

Analog input connector. Connections to AIN0 to AIN5 are available along with REFIN1(±) connections. This connector can be

used to connect an RTD to the AD7124-4.

J9

Optional external connector, allowing external bench top or alternative supply for AVDD and IOVDD. When split supplies are

used, AVSS is supplied externally via J9.

J11

Analog input connector. Connections to AIN6 to AIN7 are available along with REFIN1(±) and analog power supply connections.

This connector can be used to connect a load cell to the AD7124-4.

J12

6-pin connector. Provides an I2C interface to allow the SDP to interface to a digital temperature sensor. This is required if a

thermocouple is interfaced to the AD7124-4 using Connector A2.

J13

7-pin connector that can be used to connect an external amplifier to Channel AIN4/Channel AIN5.

J14

7-pin connector that allows connection to the AIN4 and AIN5 pins.

A0

Straight PCB mount SMB/SMA jack. The footprint for an SMA/SMB connector is included on the evaluation board to provide

the signal to the AIN4 analog input.

A1

Straight PCB mount SMB/SMA jack. The footprint for an SMA/SMB connector is included on the evaluation board to provide

the signal to the AIN5 analog input.

A2

Thermocouple connector. This connector is required if a thermocouple is being interfaced to the evaluation board.

A5

Straight PCB mount SMB/SMA jack. The footprint for an SMA/SMB connector is included on the evaluation board to provide

the REFIN1(+) signal.

A6

Straight PCB mount SMB/SMA jack. The footprint for an SMA/SMB connector is included on the evaluation board to provide

the REFIN1(−) signal.