Other Parts Discussed in Thread: OPA838, , OPA847
Hello,
I would like to know the possible gain range for OPA836 & OPA838 amplifiers?
Regards,
Jadhav
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Hello Jadhav,
The OPA836 gain and attenuation settings can be found in tables 3 and 4 of the datasheet. You can see a picture of these below:
The OPA838 is a decompensated amplifier, and needs a minimum gain of 6 V/V for proper functionality. You will see in tables 1 and 2 of this datasheet recommended resistor values that go up to gains of 20 V/V, however the amplifier gain can be still increased further. The limitations here will be a result of the input/output voltage ranges, resistor noise and device stability rather than a "max gain" of the device. I would recommend running simulations and seeing the device functionality at the gain you are trying to achieve.
Best,
Hasan Babiker