OP-Amps for everyone book. Op Amp Applications. LM741. Amplifier. A practical bipolar transistor amplifier circuit There are four basic types of electronic amplifier: the voltage amplifier, the current amplifier, the transconductance amplifier, and the transresistance amplifier.
A further distinction is whether the output is a linear or nonlinear representation of the input. Amplifiers can also be categorized by their physical placement in the signal chain.[1] Figures of merit[edit] Op Amp Fundamentals: The Transresistance Amplifier.