Analog Devices’ DEMO-AD7124-DZ Printed Circuit Board incorporates extra features for easy system evaluation. The RTD, thermocouple or pressure sensor can be joined via the eight-pin connector, J5. The device has test points for HART RTS and CD. The four-pin connector enables code to be downloaded to the microcontroller.
The CN-0382 Design Support Package also comprises a full field instrument C-code example for three-wire and four-wire Pt100 and Pt1000 RTDs, thermocouples, and voltage/current excited pressure sensors. This allows complete evaluation and verification of all hardware blocks and features of the circuit and a limited verification of the HART interface functionality.