Operational amplifier A μA741 integrated circuit, one of the most successful operational amplifiers. Type Integrated Circuit Invented Karl D. Swartzel Jr. First production 1941 Pin configuration V+: non-inverting input V−: inverting input Vout: output VS+: positive power supply VS−: negative power supply The power supply pins ( V S+ and V S− ) can be labeled in different ways ( See IC power supply pins ). Often these pins are left out of the diagram for clarity, and the power configuration is described or assumed from the circuit. Electronic symbol Circuit diagram symbol for an op-amp. Pins are labeled as listed above. An operational amplifier ( op-amp ) is a DC-coupled high- gain electronic voltage amplifier with a differential input and, usually, a single-ended output. [ 1 ] In this configuration, an op-amp produces an output potential (relative to circuit ground) that is typically hundreds of thousands of times larger than the