OPA169x Operational Amplifiers

By Texas Instruments 48

OPA169x Operational Amplifiers

Texas Instruments' OPA169x op amps achieve a new level of performance for low-power amplifiers with a low 4.2 nV/√Hz noise density and distortion of -127 dB at 1 kHz. These op amps offer rail-to-rail output swing to within 200 mV of the power supplies with a 2 kΩ load, which increases headroom and maximizes dynamic range. These devices have a high output drive capability of ±50 mA.

The OPA169x operational amplifiers operate over a wide supply range of ±1.75 V to ±18 V, or 3.5 V to 36 V (on 650 µA of supply current per channel), are unity-gain stable, and provide excellent dynamic behavior over a wide range of load conditions.

The OPA169x op amps are specified for a temperature range of -40°C to +125°C.

Features
  • Low noise: 4.2 nV/√Hz at 1 kHz
  • Low distortion: -127 dB at 1 kHz
  • Low quiescent current: 650 µA per channel
  • Slew rate: 23 V/µs
  • Wide gain bandwidth: 5.1 MHz
  • Unity-gain stable
  • Rail-to-rail output
  • Wide supply range: ±1.75 V to ±18 V, or 3.5 V to 36 V
Applications
  • Wireless microphones
  • Wireless audio monitoring systems
  • Portable radios and headsets
  • Portable audio effects processors
  • Portable recording systems
  • USB audio peripherals

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