AD8657ACPZ-R7

Overview

The AD8657ACPZ-R7 is a dual-channel micropower, precision operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities with a maximum supply voltage of 18 V. The device operates from a single supply of 2.7 V to 18 V or dual supplies of ±1.35 V to ±9 V. Key electrical specifications include a maximum offset voltage of 350 μV, a maximum input bias current of 20 pA, and a gain bandwidth product of 230 kHz. The quiescent supply current per amplifier is typically 18 μA and reaches a maximum of 22 μA. The component is specified for operation over an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Micropower consumption optimized for high-voltage applications up to 18 V
• Precision performance achieved through DigiTrim trimming technique
• Rail-to-rail input and output stages for maximum dynamic range
• High immunity to electromagnetic interference

Applications

• Portable operating systems
• Current monitors
• 4 mA to 20 mA loop drivers
• Buffer/level shifting
• Multipole filters

Procurement Notes

Verify the specific package type associated with the ACPZ suffix against official documentation before procurement. Confirm that the reel packaging format aligns with manufacturing requirements. Ensure compatibility with the intended supply voltage range and temperature specifications for the target application environment.

Selection Notes

Select this component for designs requiring low power dissipation alongside high precision in wide supply voltage environments. The rail-to-rail capability makes it suitable for single-supply sensor interfaces. Consider the 230 kHz bandwidth and low noise characteristics for signal conditioning tasks where DC accuracy and moderate speed are required.

Part Context

This part belongs to the AD8657/AD8659 family of precision micropower amplifiers. The AD8657 variant provides two channels within a compact footprint. These devices utilize CMOS technology to achieve low quiescent currents while maintaining high open-loop gain and excellent common-mode rejection ratios across the full operating temperature range.

Replacement Considerations

Consult official substitution guides for verified alternatives. Cross-reference pinouts and electrical parameters carefully when considering other dual-channel precision amplifiers.