AD22057R-REEL

Overview

The AD22057R-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 overall gain of 20 V/V, alterable via external resistors to a range of 31 to 3160. The device operates on a supply voltage between +3.0 V and +36 V, with an input common-mode range extending from -1.0 V to +24 V. Key electrical parameters include a quiescent current of 200 µA at +5 V, a bandwidth of 30 kHz, and an operating temperature range of –40°C to +125°C. It is housed in an 8-lead SOIC package.

Feature Summary

• Integrated laser-trimmed resistive attenuator allows accurate amplification of signals in the presence of common-mode voltages exceeding the supply rail.
• Configurable low-pass filtering options including one-, two-, and three-pole implementations using internal nodes and external capacitors.
• Accurate midscale offset capability enables the processing of bipolar input signals within a single-supply system.
• Built-in transient spike protection and RFI filters enhance reliability in noisy industrial environments.

Applications

• Current sensing interfaces for solenoids and power transistors
• Motor control signal conditioning
• Interface for pressure transducers, position indicators, and strain gages
• Accelerometer signal conditioning

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific REEL suffix indicates tape-and-reel packaging suitable for automated assembly. Ensure storage conditions comply with ESD sensitivity requirements to maintain device functionality prior to installation.

Selection Notes

Select this component when interfacing low-level differential sensors to high common-mode voltages without requiring dual supplies. Consider the adjustable gain range and filtering capabilities if signal conditioning beyond basic amplification is required. Verify that the output swing and load driving requirements align with the downstream ADC or processor inputs.

Part Context

The AD22057R-REEL belongs to the AD22057 family of single-supply sensor interface amplifiers manufactured by Analog Devices. This series is engineered for robust performance in automotive and industrial applications where signal integrity is compromised by high common-mode noise and supply fluctuations.

Replacement Considerations

Direct pin-compatible replacements are not explicitly documented in the provided datasheet. Evaluate alternative single-supply difference amplifiers with comparable common-mode rejection ratios and gain adjustability, ensuring interface compatibility and thermal specifications match the original design constraints.