The OPA134 series is an ultra-low distortion, low noise operational amplifier fully specified for audio applications. It provides superior sound quality and speed with a true FET input stage, high output drive capability, and excellent DC performance. The wide output swing of the OPA134, within 1V of the rails, allows for increased headroom, making it ideal for use in any audio circuit. The OPA134 op amps are easy to use and free from phase inversion and overload problems often found in common FET-input op amps. They can be operated from ±2.5V to ±18V power supplies. The input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over its wide input voltage range, minimizing distortion.
The OPA134 series are ultra‑low distortion, low‑noise operational amplifiers designed for audio applications. They feature a true FET input, high slew rate, wide supply range (±2.5 V to ±18 V) and are unity‑gain stable with excellent dynamic behavior.
These devices are offered in single, dual and quad configurations with DIP and surface‑mount packages. Typical applications include professional audio, line drivers, active filters, preamplifiers and crossover networks. The datasheet includes detailed specifications, performance curves, absolute maximum ratings and packaging information.
| Total Harmonic Distortion (THD+Noise) at 1 kHz, 2 kΩ load | 0.00008 % |
|---|---|
| Slew Rate | 20 V/µs |
| Gain‑Bandwidth Product | 8 MHz |
| Output Current | ±35 mA |
| Supply Voltage Range | ±2.5 V to ±18 V |
The OPA134 series can operate from ±2.5 V up to ±18 V.
The THD+Noise is specified as 0.00008 % at 1 kHz with a 2 kΩ load.