Hi All,
I have a question about powering opamps.
Suppose an opamp specs the supplies in the range of +/-2V to +/-20V (OP297). Likewise, you are only passing small signals through: 0-1V, 0-5V, 0-10V, etc. Is there a benefit to using the largest supply swing you can provide, for example +/-15V, instead of +/-12V or +/-5V (if the signal can be offset and scaled to fit within the input/output swing of the opamp)?
As the input offsets, noise, etc. are spec’d at absolute values (75uV, etc.), is the signal to noise ratio better at larger supply voltages? Do opamps perform better with larger supplies vs. smaller?
Thanks in advance for the insight.
Spitsnsparkin
I have a question about powering opamps.
Suppose an opamp specs the supplies in the range of +/-2V to +/-20V (OP297). Likewise, you are only passing small signals through: 0-1V, 0-5V, 0-10V, etc. Is there a benefit to using the largest supply swing you can provide, for example +/-15V, instead of +/-12V or +/-5V (if the signal can be offset and scaled to fit within the input/output swing of the opamp)?
As the input offsets, noise, etc. are spec’d at absolute values (75uV, etc.), is the signal to noise ratio better at larger supply voltages? Do opamps perform better with larger supplies vs. smaller?
Thanks in advance for the insight.
Spitsnsparkin