alternately trimming its own offset as a differential amplifier and then trimming the offset of the other op-amp which does the amplification. This has the effect of reducing the op-amp’s DC ...

The op amp — short for operational amplifier — is a packaged differential amplifier. The ideal op amp — which we can’t get — has infinite gain and infinite input impedance. While we can ...

Differential amplifiers are used in myriad applications, including microphones, simulation, analog-to-digital conversion and automatic gain control. See op amp. THIS DEFINITION IS FOR PERSONAL USE ...

After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in ...

Current-feedback operational amplifiers are devices where the main feedback path from output to input carries a current, and not a voltage, as in voltage feedback op-amps. Current-feedback op-amps do ...

The current entering the op-amp terminals is zero. Accordingly, the current coming from the source will essentially flow through R f. Figure 4.10: Transresistance amplifier. The voltage difference ...