• 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, I_O = 200mA (typical)
• Very low distortion:
  • THD = –78dBc (f = 1MHz, R_L = 150Ω)
  • THD+N = –114dBc (f = 1kHz, BW = 80kHz)
• Wide range of power supplies:
  • V_CC = ±4.5V to ±18V
• Offset nulling pins on the OPA892

• Ultrasound scanner
• Source measurement unit (SMU)
• Power quality meter
• Ultrasound scanner
• 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)

The OPA892 and OPA2892 (OPAx892) are ultra-low voltage noise, high-speed voltage-feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communication and imaging. The single-amplifier OPA892 and the dual-amplifier OPA2892 offer very good ac performance with a 290MHz bandwidth, a 700V/μs slew rate, and a 30ns settling time (0.1%) for a gain of 10V/V. The OPAx892 are stable at gains of 10 or greater and –9 or less. These amplifiers have a high drive capability of 200mA and draw only 7.5mA of 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.

Low Distortion Piezoelectric Sensor Amplifier

VCC = ±15V, RL = 150Ω, f = 1MHz

Harmonic Distortion vs
Peak-to-peak Output Voltage