OPA1678 Description
The OPA1678 (dual-channel) and OPA1679 (quadchannel) operational amplifiers offer higher systemlevel performance over legacy op amps monly used in audio circuitry. The OPA167x amplifiers achieve a low 4.5-nV/√Hz noise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. They also offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes...
OPA1678 Key Features
- 1 Low noise: 4.5 nV/√Hz at 1 kHz
- Low distortion: 0.0001% at 1 kHz
- High open-loop gain: 114 dB
- High mon-mode rejection: 110 dB
- Low quiescent current
- 2 mA per channel
- Low input bias current: 10 pA (typical)
- Slew rate: 9 V/μs
- Wide gain bandwidth: 16 MHz (G = 1)
- Unity-gain stable