ADA4622-1BRZ-R7

Overview

The ADA4622-1BRZ-R7 is a single-channel, precision JFET input operational amplifier from Analog Devices. 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 a typical gain bandwidth product of 8 MHz, a low input bias current of ±10 pA maximum at 25°C, and B-grade offset voltage limits of ±0.35 mV with drift up to ±1 µV/°C. The device features rail-to-rail output capability and includes integrated electromagnetic interference rejection filters.

Feature Summary

• JFET input architecture providing extremely low input bias current for high-impedance signal sources
• Rail-to-rail output stage enabling full dynamic range utilization in single-supply applications
• Integrated EMI filtering to maintain signal integrity near switching noise sources
• B-grade precision specifications ensuring minimal offset voltage and thermal drift

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 matches the design requirements, as the BRZ suffix indicates an 8-lead MSOP package. Confirm that the B-grade offset voltage and drift parameters align with the system's DC accuracy needs. Ensure the operating environment stays within the specified -40°C to +125°C range to maintain guaranteed performance levels.

Selection Notes

Select this component when upgrading from legacy AD820 series devices without compromising flexibility. It is suitable for designs requiring improved DC precision and lower noise compared to previous generations while maintaining similar power consumption. Consider the 8-lead MSOP footprint constraints during PCB layout planning.

Part Context

This device belongs to the ADA4622 family, representing the next generation of the AD820/AD822/AD824 series. It offers enhanced performance characteristics including reduced voltage noise and improved common-mode rejection ratio. The family provides options for single, dual, and quad configurations across various industry-standard packages.

Replacement Considerations

ADA4622-1ARJZ-R7

FAQ

Does the ADA4622-1BRZ-R7 support shutdown operation?

Yes, the 8-lead MSOP package variant includes a dedicated DISABLE pin (Pin 8) that allows for active-low shutdown control.

What is the input voltage range specification?

The input voltage range includes the negative supply pin (V−), allowing for true single-supply operation down to ground potential.