Analog DevicesEVAL-CN0349-PMDZ

Reference Design: Fully Isolated Conductivity Measurement Data Acquisition System

This reference design uses the EVAL-CN0349-PMDZ circuit board, the SDP-PMD-IB1Z, and the EVAL-SDP-CB1Z system demonstration platform (SDP) evaluation board. The SDP-PMD-IB1Z interposer board and the EVAL-SDP-CB1Z SDP board have 120-pin mating connectors. The SDP-PMD-IB1Z interposer board and the EVAL-CN0349-PMDZ board have 8-pin Pmod matching connectors, allowing quick setup and evaluation of the performance of the circuit. The EVAL-CN0349-PMDZ board contains the circuit to be evaluated, and the SDP evaluation board is used with the CN-0349 Evaluation Software to capture the data from the EVAL-CN0349-PMDZ circuit board.

Block Diagram: 

Features:

• Accurate conductivity measurements to 1%

• Small PCB footprint

• Fully isolated

Applications:

• Electrochemical analysis

• Bioelectrical impedance analysis

• Impedance spectroscopy

• Biomedical and automotive sensors

• Proximity sensing

• Isolated sensor interfaces

• Industrial PLCs

Functional Setup

The following equipment is needed:

• The EVAL-CN0349-PMDZ circuit evaluation board

• The EVAL-SDP-CB1Z SDP evaluation board

• The SDP-PMD-IB1Z interposer board

• A 6 V power supply or wall wart (EVAL-CFTL-6V-PWRZ)

• The CN-0349 Evaluation Software

• A conductivity cell with integrated Pt100 sensor (for example, Sensorex CS200TC-PT1)

• A PC with a USB port, Windows® 7 (64-bit), Windows 8 (64-bit), Windows 10 (64-bit), or Windows 8 (64-bit or 32-bit)

Compatible Boards:

• Intel boards with the Pmod connector 

• EVAL-SDP-CB1Z: Blackfin® (SDP-B) controller board.

• SDP-PMD-IB1Z: Pmod to SDP Adaptor Board 

Related Content:

Electrochemical Sensing Allows for Precise, Convenient Water Quality Measurements

Related ADI parts

• AD5934: 250 kSPS, 12-Bit Impedance Converter, Network Analyzer

• AD8606: Precision, Low Noise, RRIO, CMOS Op Amp (Dual)

• ADG715: CMOS, Low Voltage, I2C Compatible Interface, Serially Controlled, Octal SPST Switches

• ADUM1250: Hot Swappable Dual I2C Isolator

• ADUM5000: Isolated DC/DC Converter

Reference Documentation:

• ADI Pmod Daughter Cards