ADA4622-2ARMZ-RL

Overview

The ADA4622-2ARMZ-RL is a dual-channel precision operational amplifier from Analog Devices, featuring JFET inputs and rail-to-rail output. It operates within a supply voltage range of 5 V to 30 V (±2.5 V to ±15 V) and supports an extended industrial temperature range of -40°C to +125°C. 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 low offset voltage drift, with B-grade performance specified at ±2 µV/°C over the full temperature range.

Feature Summary

• Next-generation upgrade for AD822 series with improved DC precision and reduced noise
• Rail-to-rail output capability with input voltage range including the negative supply
• High electromagnetic interference rejection ratio (EMIRR) for robust signal integrity
• Industry-standard pinouts across multiple package options

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 'ARMZ-RL' corresponds to the 8-lead MSOP package and reel packaging configuration. Confirm that the B-grade offset voltage drift specification aligns with application requirements. Ensure compatibility with existing PCB footprints designed for industry-standard SOIC or MSOP packages.

Selection Notes

Select this component when upgrading from AD822 designs requiring lower offset voltage drift and improved EMI immunity. The dual-channel architecture in an 8-lead MSOP package is suitable for space-constrained applications needing rail-to-rail output swing. Verify that the 8 MHz bandwidth meets the system's signal processing speed requirements.

Part Context

This part belongs to the ADA4622-1/ADA4622-2/ADA4622-4 family of single-supply, precision JFET input op amps. It serves as the dual-channel variant, replacing the legacy AD822. The family shares common features like low bias current and high CMRR but differs in channel count and available package types.

Replacement Considerations

ADA4622-2ARZ

FAQ

What is the maximum input bias current specification?

The maximum input bias current is ±10 pA at TA = 25°C.

Does the input voltage range include the negative supply?

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

What is the typical EMIRR value?

The Electromagnetic Interference Rejection Ratio (EMIRR) is typically 90 dB at frequencies of 1000 MHz and 2400 MHz.