Hi. In our application, the OP2177 output is disconnected for a period of time, and the feedback loop is broken resulting in the OP2177 output going to one rail or another (+ or - 15 V). We then close the output relay and the feedback loop is closed again. On previous part purchases (~2012 to ~2019), the OP2177 would quickly settle to the correct value. The microcontroller would wait for a short period of time for the OP2177 output to settle and then continue. On newly purchased parts, the OP2177 oscillates for ~100 ms before returning to normal operation. I think we can work around this with a firmware change, but I just want to make sure that I'm understanding the problem correctly. Thanks.
Sorry, I meant to post this in Op-amps. I can move it if you'd like.
Please let me check onto this.
Based from the OP2177 Product Page, there was a die revision last June 7, 2018.
Thanks and regards.