This section describes the electrical characteristics specific to op-amps.
When an op-amp is used as an amplifier, the common-mode input voltage range indicates the input voltage range in which it operates properly. When an op-amp is used to amplify a tiny signal from a sensor or other device, what the sensor resolution is to a sensor is what the input offset voltage or the common-mode input signal rejection ratio (CMRR) is to an op-amp. The minimum resolution is determined by the amount of noise.
This section describes the following:
- Input offset voltage, VIO
- Common-mode input voltage range (CMVIN), common-mode input signal rejection ratio (CMRR)
- Op-amp noise
- Noise gain and signal gain