Op Amps: Gain of X stable. What does it mean?

Thread Starter

sp2821

Joined Jan 8, 2014
23
Hi,

As I was reading through some of Op amp's datasheets I saw descriptions like "the opamp is stable in a noise gain of 10 or greater..."
What does it exactly mean?
Does it mean the opamp will be unstable for any circuit configuration that has G of less than 10?

Thanks!
 

crutschow

Joined Mar 14, 2008
34,285
Hi,

As I was reading through some of Op amp's datasheets I saw descriptions like "the opamp is stable in a noise gain of 10 or greater..."
What does it exactly mean?
Does it mean the opamp will be unstable for any circuit configuration that has G of less than 10?
Yes, some high frequency op amps have that limitation.
That means it is not unity gain stable for example.
 
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