Texas Instruments OPA167x/OPA167x-Q1 Audio Operational Amplifiers
Texas Instruments OPA167x/OPA167x-Q1 Audio Operational Amplifiers offer higher system-level performance over legacy op amps commonly used in audio circuitry. These amplifiers achieve a low 4.5-nV/√Hz noise density and low distortion of 0.0001% at 1kHz, which improves audio signal fidelity. The OPA167x/OPA167x-Q1 also offers a rail-to-rail output swing within 800mV with a 2kΩ load, increasing headroom and maximizing dynamic range. Each device operates over a very wide supply range of ±2.25V to ±18V or 4.5V to 36V on only 2mA of supply current. This flexibility accommodates the power supply constraints of many types of audio products. These op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. This feature allows these devices to be used in many audio circuits. The Texas Instruments OPA167x-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- 4.5nV/√Hz at 1kHz low noise
- 0.0001% at 1kHz low distortion
- 114dB high open-loop gain
- 110dB high common-mode rejection
- 2mA per channel low quiescent current
- 10pA (typical) low input bias current
- 9V/µs slew rate
- 16MHz (G = 1) wide gain bandwidth
- Unity-gain stable
- Rail-to-rail output
- Wide supply range
- ±2.25V to ±18V or 4.5V to 36V
- Dual-channel and quad-channel versions
- Small package sizes
- Dual-channel: SO-8 and MSOP-8
- Quad-channel: SO-14 and TSSOP-14
Applications
- Analog signal conditioning
- Analog and digital mixers
- Audio effects pedals
- A/V receivers
- Car audio systems
Datasheets
Functional Block Diagram
Related Development Tools
Texas Instruments QFN16-DIP-EVM Op Amp Evaluation Module (EVM)
Provides a fast and easy platform for prototyping the TI RUM-16 package parts.
Published: 2017-05-19
| Updated: 2023-02-24