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how to know a capacitance load , how to choose a slew rate ?

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hi

i am a beginner of analog design.
i am read a design opamp example in allen book, already.

Now i have some question about a design.

- how to know a capacitance load ?
- how to choose a slew rate of balance ota ? somebody tell me that it depend on
an application , could you give me an example what is a reasonable slew rate ?
such as for large signal swing , high gain ...

best regardly
 

Re: how to know a capacitance load , how to choose a slew ra

First, concerning the capacitive load, usually you will have a minimum capacitive load as a spec and some times u will need to increase this load to enhance stability in load compensated amplifiers while u will need to decrease this load to enhance stability in miller compensated amplifiers.

Second, concerning the slew rate, usually u will have a spec on the settling time for a full swing output and to achieve this spec u will need to adjust both the GBW and the slew rate.
 

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