Texas Instruments OPAx892 Ultra-Low THD Operational Amplifiers
Texas Instruments OPAx892 Ultra-Low THD Operational Amplifiers are ultra-low voltage noise, high-speed voltage-feedback amplifiers. These amplifiers are excellent for low-voltage noise applications, including communication and imaging. The single-amplifier OPA892 and the dual-amplifier OPA2892 offer excellent AC performance with a 290MHz bandwidth, a 700V/µs slew rate, and a 30‑ns settling time (0.1%) for a gain of 10 V/V. The Texas Instruments OPAx892 are stable at gains of 10 or greater and –9 or less. These amplifiers have a high drive capability of 200 mA and draw only 7.5mA supply current per amplifier. With a total harmonic distortion (THD) of –68dBc at f = 1MHz, the OPAx892 are designed for applications requiring low distortion. Because the distortion remains low over a wide range of output voltages, the OPAx892 is useful in large dynamic-range applications such as imaging, sonar, and audio.Features
- Ultra-low 0.95nV/√Hz voltage noise
- High speed
- 2GHz gain-bandwidth product
- 700V/µs slew rate
- 30ns settling time (0.1%)
- Stable at gains ≥ 10V/V
- Output drive, IO = 200mA (typical)
- Very low distortion
- THD = –78dBc (f = 1MHz, RL = 150Ω)
- THD+N = –114dBc (f = 1kHz, BW = 80kHz)
- Wide range of power supplies
- VCC = ±4.5V to ±18V
- Offset nulling pins on the OPA892
Applications
- Ultrasound scanner
- Source measurement unit (SMU)
- Power quality meter
- Ultrasound scanners
- Vector signal transceiver (VST)
- 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 acquisition (DAQ)
Functional Block Diagrams
Đã phát hành: 2024-03-19
| Đã cập nhật: 2024-08-28
