AD22050RZ-REEL

Overview

The AD22050RZ-REEL is a single-supply difference amplifier designed for amplifying and low-pass filtering small differential voltages from sources with large common-mode voltages. It features a default gain of 20, alterable between 31 and 3160 via external resistors. The input common-mode range extends from below ground to 6 times (VS minus 1 V). Operating on supply voltages from +3.0 V to +36 V, it provides an output span from 20 mV to (VS minus 0.2 V). Key specifications include a differential input resistance of 400 kΩ, transient spike protection up to 60 V, and reversed supply protection down to –34 V. It operates within a temperature range of –40°C to +125°C.

Feature Summary

• High common-mode rejection ratio allowing accurate signal conditioning in the presence of large common-mode voltages exceeding the supply voltage.
• Integrated preamplifier and output buffer with adjustable gain capabilities and optional low-pass filtering configurations.
• Robust protection features including transient spike tolerance and reversed supply voltage protection for harsh environments.

Applications

• Current sensing interfaces for solenoids and motor control systems
• Signal conditioning for pressure transducers and position indicators
• Strain gage interface applications requiring midscale offset capability

Procurement Notes

Verify the specific ordering suffix REEL7 against the manufacturer's current documentation to confirm tape and reel packaging quantities. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the SO-8 package dimensions with your PCB footprint library before finalizing procurement orders.

Selection Notes

Select this component when interfacing sensors with high common-mode voltages using a single supply. Consider the gain adjustment range and required filter order based on the signal bandwidth. Evaluate the output drive capability and load requirements to ensure the output swing remains within specified limits under operating conditions.

Part Context

This part belongs to the AD22050 family of single-supply sensor interface amplifiers manufactured by Analog Devices Inc. The RZ designation indicates the plastic SOIC-8 package variant, while the REEL suffix specifies the tape and reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Consult the official datasheet for alternative package options such as the AD22050N or standard AD22050R. Verify pin compatibility and electrical specifications before substituting with other difference amplifiers from different manufacturers.