OPA1637

www.ti.com OPA1637 SBOSA00B – DECEMBER 2019 – REVISED AUOGPUAST12603270 SBOSA00B – DECEMBER 2019 – REVISED AUGUST 2020 OPA1637 High-Fidelity, Low-Noise, Fully-Differential, Burr-Brown™ Audio Operational Amplifier 1 Features Low input voltage noise: 3.7 nV/√Hz at 1 kHz Low THD + N: –120 dB at 1 kHz Low supply current: 950 µA at ±18 V Input offset voltage: ±200 µV (maximum) Input bias current: 2 nA (maximum) Low bias current noise: 400 fA/√Hz at 10 Hz Gain-bandwidth product: 9.2 MHz Differential output slew rate: 15 V/µs Wide input and output common-mode range Wide single-supply operating range: 3 V to 36 V Low supply current power-down feature: < 20 µA Overload power limit Current limit Package: 8-pin VSSOP Temperature range: –40°C to +125°C 2 Applications Professional audio mixer or control surface Professional microphones and wireless systems Professional speaker systems Professional audio amplifier Soundbar Turntable Professional video camera Guitar and other instrument amplifier Data aquisition (DAQ) 3 Description The OPA1637 is a low-noise, low total harmonic distortion (THD), fully differential, Burr-Brown™ Audio operational amplifier that easily filters and drives fully differential, audio signal chains. The OPA1637 also converts single-ended sources to differential outputs required by high-fidelity analog-todigital converters (ADCs). Designed for exceptional low noise and THD, the bipolar super-beta inputs yield a ...