ADA4622-2BRZ

Overview

The ADA4622-2BRZ is a dual-channel, precision operational amplifier from Analog Devices Inc., utilizing JFET input technology. It operates within a supply voltage range of 5 V to 30 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 (low to high), and a maximum input bias current of ±10 pA at 25°C. The device features rail-to-rail output capability and offers B-grade offset voltage performance with a maximum drift of ±2 µV/°C.

Feature Summary

• Next-generation upgrade for AD822 series with improved DC precision and lower noise
• Rail-to-rail output swing compatible with single-supply operation
• High electromagnetic interference rejection ratio for robust signal integrity
• Low input bias current suitable for high-impedance sensor interfaces

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet ordering guide, as the BRZ suffix indicates an 8-lead SOIC_N package. Confirm that the required grade matches the B-grade specifications for offset voltage and drift if strict precision is necessary. Ensure the design accommodates the specified operating temperature range and supply voltage limits to maintain guaranteed performance parameters.

Selection Notes

Select this component when upgrading from legacy AD822 designs requiring enhanced speed and precision without changing pinouts. It is suitable for applications demanding low input bias current and rail-to-rail output swing in single-supply systems. Consider the thermal resistance characteristics for PCB layout planning to ensure reliable operation across the full industrial temperature range.

Part Context

This part belongs to the ADA4622-1/ADA4622-2/ADA4622-4 family of single-supply, rail-to-rail output, precision JFET input op amps. The family provides improvements over the AD820/AD822/AD824 series, including reduced voltage noise and improved common-mode rejection ratio while maintaining industry-standard package footprints for easy integration into existing designs.

Replacement Considerations

The AD8226BRZ is listed as a potential substitute option.