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designing opamp for buffer - OPAMP stability check quest

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R

ranier

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OPAMP stability check.

Hi all

I am designing resistor string DAC using 0.35um cmos process.
DAC specifiaction is 8bit , 80ks/sec and MAX 10nF load.

I have finished designing Resistor string and decoder.
Finally I am making output buffer(opamp).
I have to consider 2 cases load.[no load and 10nF load]

my question is

As I design the opamp for buffer,
Will I check the stability of opamp with output load(10nF) ?

In my opinion,
because I will use the opamp as buffer(vout and negative input opamp are shorted).

so I will check the stability of opamp with no load.
and then check the stability of buffer with 10nF load and no load.
(buffer == negative input and vout of opamp are short).

Am I right?
 

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