SN72747

SN72747 is a dual general-purpose operational amplifier developed by Texas Instruments as part of the early SN72xx linear IC series. The device integrates two independent op-amps in a single package, each designed for standard analog signal processing tasks such as amplification, filtering, and buffering.

Each amplifier inside the SN72747 is electrically similar to the SN72741 (a classic 741-type op-amp), allowing designers to implement two analog gain stages while sharing a common power supply. The IC features internal frequency compensation, eliminating the need for external stability components, and includes short-circuit protection for improved reliability.

The device supports offset-voltage null adjustment, allowing precision trimming in sensitive analog circuits. Its wide common-mode input range and resistance to latch-up made it suitable for instrumentation, control systems, and early analog computing circuits.

Typically supplied in a 14-pin DIP package, the SN72747 was commonly used in industrial electronics, audio circuits, instrumentation, and signal conditioning systems throughout the 1970s. The commercial-grade SN72747 version operates over 0 °C to 70 °C, while the related SN52747 variant was rated for military temperature ranges.