ADA4622-2ACPZ-R7

Overview

The ADA4622-2ACPZ-R7 is a dual-channel precision operational amplifier from Analog Devices, serving as the next-generation successor to the AD822. It features JFET inputs with a typical gain bandwidth product of 8 MHz and a high slew rate of 23 V/µs (low-to-high). The device supports single-supply operation from 5 V to 30 V or dual supplies up to ±15 V, offering rail-to-rail output capability. Key electrical specifications include a maximum input bias current of ±10 pA at 25°C, an offset voltage of ±0.35 mV for B grade, and low offset drift of ±2 µV/°C. It operates within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Next-generation upgrade to the AD822 series with improved DC precision and reduced noise
• JFET input architecture providing extremely low input bias current
• Rail-to-rail output swing capability for maximizing dynamic range
• Enhanced electromagnetic interference rejection ratio (EMIRR) for signal robustness

Applications

• High output impedance sensor interfaces
• Photodiode sensor interfaces
• Transimpedance amplifiers
• ADC drivers
• Precision filters and signal conditioning

Procurement Notes

Verify the specific package type and reel quantity associated with the ACPZ suffix against the manufacturer's official ordering guide. Confirm that the component meets the required RoHS compliance standards for your region. Ensure that the supply chain source provides valid traceability documentation. Cross-reference the datasheet revision to confirm parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when upgrading from legacy AD822 designs requiring lower offset voltage and drift. It is suitable for applications demanding high input impedance combined with moderate speed. Consider the B grade specification if tighter offset voltage limits are necessary. Evaluate the thermal resistance characteristics relative to the PCB layout to ensure adequate heat dissipation during continuous operation.

Part Context

This part belongs to the ADA4622 family, which includes single (ADA4622-1), dual (ADA4622-2), and quad (ADA4622-4) channel variants. The family shares common architectural improvements over the AD820/AD822/AD824 series, such as reduced broadband noise and improved CMRR. The ACPZ designation indicates an 8-lead LFCSP package variant within the dual-channel configuration.

Replacement Considerations

Direct pin-compatible replacements include the legacy AD822. Verify that the substitute component meets the specific offset voltage and drift requirements of the original design. Check for any differences in EMI rejection capabilities or output drive strength.