ranier
Junior Member level 1
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?
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?