Analog Devices EVAL-CN0295-EB1Z, CN0295 Temperature Sensor Evaluation Board

Evaluation Board for 4-20mA Pressure Sensor Application

This Analog Devices Evaluation board provides a complete solution for a 4 - 20 mA transmitter for pressure sensor measurements The circuit converts the differential voltage output from a pressure sensor bridge to a 4 - 20 mA current output and has been optimized for a wide variety of bridge-based voltage or current driven pressure sensors. It utilizes only five active devices, and has a total unadjusted error of less than 1%. The power supply voltage can range from 7 V to 36 V depending on the component and sensor driver configuration.

The following devices are included on the evaluation board:

AD8226 Rail-to-Rail Output Instrumentation Amplifier
ADA4091-4 Precision Micropower, OVP, R-R I/O Op-Amp
ADR02 Ultra-compact Precision 5.0V Reference
BC847C NPN Transistor
SI2319DS-T1-E3 P-channel MOSFET

Sensor Interfaces, Analog Devices

Circuit Note CN0295 for Pressure Sensor Transmitter Application

ESD Control Selection Guide V1