AD8659ACPZ-R7

Overview

The AD8659ACPZ-R7 is a quad micropower, precision, rail-to-rail input/output operational amplifier from Analog Devices. It operates on supply voltages ranging from 2.7 V to 18 V (or ±1.35 V to ±9 V dual supply). 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 device draws a typical quiescent supply current of 18 μA per amplifier and features high electromagnetic interference immunity.

Feature Summary

• Utilizes patented DigiTrim trimming technique to achieve low offset voltage and precision performance.
• Offers excellent electromagnetic interference immunity for reliable operation in noisy environments.
• Provides rail-to-rail input and output capabilities across the full operating supply voltage range.

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet, as the AD8659 is available in both 14-lead SOIC and 16-lead LFCSP packages. Confirm that the ordering suffix matches the required reel or cut tape packaging format. Ensure the component meets RoHS compliance requirements for your manufacturing process.

Selection Notes

Select this component when designing circuits requiring low power consumption alongside high precision. It is suitable for applications needing wide supply voltage flexibility and robust noise rejection. Consider the quad configuration if multiple channels are required within a single footprint.

Part Context

This part belongs to the AD8657/AD8659 family of micropower op amps. While the AD8657 provides a dual-channel configuration, the AD8659 offers four independent amplifiers. Both share identical electrical characteristics and are optimized for low-power, wide-supply-range applications.

Replacement Considerations

The AD8657 serves as the dual-channel equivalent within the same family. Other precision CMOS amplifiers with similar rail-to-rail I/O and low power specs may be considered, but direct pin-compatible substitutes require verification against the specific package type (SOIC vs. LFCSP).