PID controller application for the AD8616

Hi Licunxu,

Thanks for reaching out regarding the query for the AD8616.
For the circuit above I think the configuration itself the standard PID controller circuit. But I want to make sure that the amplifier itself is stable using the values used. Have you tried running it on AC analysis? were you able to get the right pole and zero values on the configuration?

If you can provide the specification you need for the PID controller we can help you optimize the circuit and choose the right components for it. You may also want to look at this article https://www.analog.com/en/technical-articles/hfan0820-how-to-control-and-compensate-a-thermoelectric-cooler-tec.html as it has a section for the PID controller circuit on setting up the poles and zero of the controller. Hope the article helps.

Thank you!

Best Regards,
Dann