ADA4622-2ARZ-R7

Overview

The ADA4622-2ARZ-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 rail-to-rail output capability and operates on single or dual supplies ranging from 5 V to 30 V. Key electrical specifications include an 8 MHz gain bandwidth product, a typical slew rate of 23 V/µs, and a maximum input bias current of ±10 pA at 25°C. The device offers B-grade offset voltage limits of ±0.35 mV and drift of ±2 µV/°C. It is housed in an 8-lead SOIC_N package.

Feature Summary

• Next-generation JFET input architecture providing improved DC precision and lower noise compared to previous generations.
• Rail-to-rail output swing capability allowing full dynamic range utilization within supply limits.
• Integrated electromagnetic interference (EMI) rejection filters for enhanced signal robustness near switching noise sources.
• Extended industrial operating temperature range spanning -40°C to +125°C.

Applications

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

Procurement Notes

Verify the specific ordering suffix R7 corresponds to the required tape and reel packaging configuration before finalizing procurement. Confirm that the B-grade performance parameters align with the design requirements for offset voltage and drift. Ensure the 8-lead SOIC_N package dimensions match the target PCB footprint constraints.

Selection Notes

Select this component when upgrading from AD822 series devices without compromising flexibility. It is suitable for applications requiring low input bias current and high common-mode rejection ratio in noninverting or difference amplifier configurations. Consider the B-grade specifications for tighter offset voltage and drift tolerances compared to A-grade alternatives.

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 core architectural improvements over the legacy AD820/AD822/AD824 series, focusing on reduced voltage noise and improved settling times while maintaining similar supply current consumption levels.

Replacement Considerations

ADA4622-2ARZ

FAQ

Does the input voltage range include the negative supply rail?

Yes, the input voltage range includes Pin V− (the negative supply).

What is the typical EMI rejection ratio at 1000 MHz?

The typical Electromagnetic Interference Rejection Ratio (EMIRR) is 90 dB at f = 1000 MHz.