what's settling time?

[ry257]

hi,all

who can tell me "what is settling time in opamp"?
"and the relation in settling time,SR,GW,PH."
by the way ,where can i find a detailed introduction on the internet?

meanwhile ,i am designing an opamp that is used in a sigma-delta ADC.and the demanding settling time is 50n.But i am not quite clear about this concept.

 

[Old Nick]

Settling time is the time an opamp takes to settle on it's output (to a % accuracy) after a step response (usually) is input.

TI have a document on it here

https://www.analog.com/UploadedFiles/Application_Notes/466359863287538299597392756AN359.pdf

 

[cliffj]

Time for your opamp to settle down within a specified output range(accuracy), usually within 0.1% error. You can refer to the attached document

 

[lautouching]

read the book by allen in chapter 6

 

[vlsi_iitkgp]

hi,all

who can tell me "what is settling time in opamp"?
"and the relation in settling time,SR,GW,PH."
by the way ,where can i find a detailed introduction on the internet?

meanwhile ,i am designing an opamp that is used in a sigma-delta ADC.and the demanding settling time is 50n.But i am not quite clear about this concept.

Settling time is minimum time an opamp takes to settle down the output (to a % accuracy) after a step response (usually) is input.