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OPA1656 Datasheet Audio Operational Amplifier

Manufacturer: Texas Instruments

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General Description

The OPA1655 and OPA1656 (OPA165x) are BurrBrown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial.

The FET-input architecture achieves a low 2.9‑nV/√Hz voltage noise density and 6‑fA/√Hz current noise density, allowing for very-low noise performance in a wide variety of circuits.

The high bandwidth and high open-loop-gain design of the OPA165x delivers a low distortion of 0.000035% (–129 dB) at 20 kHz, and improves audio signal fidelity across the full audio bandwidth.

Overview

OPA1655, OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers.

Key Features

  • Ultra-low noise:.
  • Voltage noise: 2.9 nV/√Hz at 10 kHz.
  • Current noise: 6 fA/√Hz at 1 kHz.
  • Low distortion:.
  • 0.000029% (.
  • 131 dB) at 1 kHz.
  • 0.000035% (.
  • 129 dB) at 20 kHz.
  • High open-loop gain: 150 dB.
  • High output current: 100 mA.
  • Low input bias current: 10 pA.
  • Slew rate: 24 V/μs.
  • Gain bandwidth product: 53 MHz.
  • Rail-to-rail output.
  • Wide supply range: ±2.25 V to ±18 V o.

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