AD8663ACPZ-R2

Overview

The AD8663ACPZ-R2 is a single-channel, precision CMOS rail-to-rail output operational amplifier manufactured by Analog Devices. It operates on single supplies from 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. Key electrical specifications include a maximum offset voltage of 175 μV at 5 V and 300 fA input bias current. The device provides low noise performance with a voltage noise density of 23 nV/√Hz at 1 kHz and 21 nV/√Hz at 10 kHz. It features a gain bandwidth product of 540 kHz and unity-gain stability.

Feature Summary

• Utilizes patented DigiTrim trimming technique for low offset voltage
• Rail-to-rail output capability increases dynamic range for data converters
• Very low input bias current suitable for high impedance sensors
• Operates across extended industrial temperature range

Applications

• Sensor front ends
• Transimpedance amplifiers
• Electrometer applications
• Photodiode amplification
• Low power ADC drivers

Procurement Notes

Verify the package type matches the required footprint, as the AD8663 family includes SOIC, LFCSP, MSOP, and TSSOP options. Confirm the suffix indicates the correct reel packaging format. Ensure the component meets RoHS compliance requirements if applicable to the manufacturing process. Cross-reference the specific ordering guide to validate the exact part number against the desired channel count and package dimensions.

Selection Notes

Select this component when low noise and precision are critical alongside low supply current. The wide supply voltage range supports both single and dual supply architectures. Consider the LFCSP package for space-constrained designs requiring thermal efficiency. Evaluate the trade-off between the 540 kHz bandwidth and the ultra-low bias current for high-impedance signal conditioning tasks.

Part Context

This device belongs to the AD8663/AD8667/AD8669 family of precision amplifiers. While the AD8663 is a single-channel unit, the family also includes dual (AD8667) and quad (AD8669) configurations. All variants share similar electrical characteristics but differ in channel count and available package options such as SOIC, MSOP, and TSSOP.

Replacement Considerations

Direct substitutes within the same family include the AD8667 (dual channel) and AD8669 (quad channel). Other packages for the single-channel AD8663 include the AD8663ARZ in an 8-lead SOIC. Verify pin compatibility and thermal resistance differences when switching between LFCSP and SOIC packages.