ADI ADHV4702-1BCPZ-R7

The ADHV4702-1 is a high-voltage (220 V), unity-gain stable precision op-amp. It offers high input impedance, low input bias current, low input offset voltage, low drift, and low noise, making it suitable for demanding precision applications. A next-generation proprietary semiconductor process and innovative architecture enable this precision op-amp to operate from symmetric dual supplies of ±110 V, asymmetric dual supplies, or a single 220 V supply.

To achieve high-accuracy performance, the ADHV4702-1 features a typical open-loop gain (Aₒₗ) of 170 dB and a typical common-mode rejection ratio (CMRR) of 160 dB. The ADHV4702-1 has a maximum input offset voltage (Vₒₛ) drift of 2 μV/°C and an input voltage noise of 8 nV/√Hz.

The ADHV4702-1's excellent DC accuracy is complemented by outstanding dynamic performance, with a small-signal bandwidth of 10 MHz and a slew rate of 74 V/μs. The ADHV4702-1 has a typical output current of 20 mA.

The ADHV4702-1 provides high-voltage input common-mode swing and high-voltage output swing, supporting precision high-voltage use cases such as high-side current sensing. The ADHV4702-1 is also well suited for driving voltages in precision biasing 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 with IEC 61010-1 creepage and clearance standards. The copper EPAD provides a low thermal resistance path for improved heat dissipation and features high-voltage isolation characteristics, allowing it to be safely connected to the 0 V ground plane regardless of VCC or VEE voltage. The ADHV4702-1 operates over an industrial temperature range of -40°C to +85°C.

• Wide dual-supply voltage range: ±12 V to ±110 V
• Asymmetric supply: 24 V to 220 V
• Wide input common-mode voltage range: rated to within 3 V of supply rails
• High CMRR: 160 dB (typical)
• High Aₒₗ: 170 dB (typical)
• High slew rate: 74 V/μs (typical), 24 V/μs (typical, with external input clamp diodes)
• Low input bias current: 2 pA (maximum)
• Low input offset voltage: 1 mV (maximum)
• Low input offset voltage drift: 2 μV/°C (maximum)
• Low input voltage noise: 8 nV/√Hz (10 kHz, typical)
• Wide small-signal bandwidth: 10 MHz (typical)
• Resistor-adjustable quiescent current: 0.6 mA to 3 mA (±110 V)
• Unity-gain stable
• Thermal monitoring
• Small footprint: 12-lead, 7 mm × 7 mm LFCSP, IEC 61010-1 creepage compliant
• Shutdown mode available

• High-side current sensing
• Automated test equipment
• High-voltage drivers
• Piezoelectric sensors
• DAC output buffers
• Bias voltage for LiDAR, APD, and SPAD