The OP179/OP279 is an operational amplifier with a single-supply, high output current, wide common-mode range, and can be used in various scenarios such as driving headphones, displays, transformers, and power transistors.
The OP179 and OP279 are rail‑to‑rail, high‑output‑current, single‑supply operational amplifiers designed for multimedia, telecom, and low‑voltage servo control applications. They can source or sink up to +60 mA and drive capacitive loads up to 10 nF while maintaining low distortion (0.01 % THD) and a wide bandwidth of 5 MHz.
The document provides electrical specifications, absolute maximum ratings, ordering information, typical performance graphs, theory of operation, and design guidelines such as input over‑voltage protection, snubber network recommendations, and overload recovery times.
| High Output Current | +60 mA |
|---|---|
| Supply Voltage Range | 5 V to 12 V |
| Bandwidth | 5 MHz |
| Slew Rate | 3 V/µs |
| Total Harmonic Distortion (THD) | 0.01 % |
| Voltage Noise Density | 22 nV/√Hz |
| Capacitive Load Drive Capability | 10 nF |
| Supply Current per Amplifier | < 3.5 mA |
The amplifiers can source or sink up to +60 mA typical output current.
They can drive capacitive loads up to 10 nF without external compensation.
Each device consumes less than 3.5 mA of supply current.
A 20 Ω series resistor with a 1 µF capacitor provides effective overshoot reduction.