ADHV4702-1 24 V to 220 V Precision Op-Amp

By Analog Devices Inc 119

ADHV4702-1 24 V to 220 V Precision Op-Amp

ADI's ADHV4702-1 is a high-voltage (220 V), unity-gain, stable precision op-amp and offers high-input impedance with low-input bias current, low-input offset voltage, low drift, and low noise for precision-demanding applications. The proprietary semiconductor processes and innovative architecture from ADI enable this precision op-amp to operate from symmetrical dual supplies of ±110 V, asymmetrical dual supplies, or a single supply of 220 V. 

The ADHV4702-1 offers high-voltage input common-mode swing and high voltage output swing enabling precision high-voltage use cases such as high-side current-sensing. The device is ideal for forcing a voltage in precision bias and control applications.

The ADHV4702-1 is available in a 12-lead, 7 mm × 7 mm lead frame chip scale package (LFCSP) with an exposed pad (EPAD) compliant to international electrotechnical commission (IEC) 61010-1 creepage and clearance standards. The copper EPAD provides a low thermal resistance path to improve heat dissipation and features high-voltage isolation allowing it to be safely connected to a 0 V ground plane regardless of the VCC or VEE voltages. The ADHV4702-1 operates over the -40°C to +85°C industrial temperature range.

Typical Application

  • Wide range of operating voltages:
    • Dual-supply: ±12 V to ±110 V
    • Asymmetrical supply operation: 24 V to 220 V
  • Wide input common-mode voltage range: 3 V from rails
  • High common-mode rejection ratio: 160 dB (typ.)
  • High slew rate:
    • 74 V/µs (typ.)
    • 24 V/µs (typ.)
  • Small footprint: 12-lead, 7 mm x 7 mm LFCSP compliant with IEC 61010-1 spacing
  • High AOL: 170 dB (typ.)
  • Low input offset voltage: 1 mV (max.)
  • Low input offset voltage drift: 2 µV/°C (max.)
  • Low input voltage noise: 8 nV/√Hz (typ.) at 10 kHz
  • Wide small signal bandwidth: 10 MHz (typ.)
  • Resistor adjustable quiescent current: 0.6 mA to 3 mA (VS = ±110 V)
  • Unity-gain stable
  • Low input bias current: 2 pA (max.)
  • Thermal monitoring
  • Shutdown-mode
  • High-side current-sensing
  • Automated test equipment (ATE)
  • High-voltage drivers
  • Piezo transducers
  • Digital-to-analog converter (DAC) output buffers
  • Light detecting and ranging (LiDAR)
  • Avalanche photodiodes (APD)
  • Single photon avalanche diode (SPAD) biasing