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Subject: Re: Why OP1177 & OP184 oscillate

Date: 10/10/03 at 7:15 PM
Posted by: Russ Kincaid
E-mail: russlk-nospam[AT55]yahoo.com (replace [AT55] with @ to reply)
Message Posted:

In Reply to: Why OP1177 & OP184 oscillate posted by Epsilon on 10/10/03 at 7:00 AM:

See the data sheet for the OP2177, page 12. It shows how to prevent oscillation due to excess input capacitance by using a capacitor across the feedback resistor.

If you don't have a power supply bypass cap close to the IC, add one. The OP2177 has good phase margin and should not oscillate.


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