AD8661ACPZ-REEL

Overview

The AD8661ACPZ-REEL is a single-channel precision operational amplifier manufactured by Analog Devices Inc. It features a gain-bandwidth product of 4 MHz and a slew rate of 3.5 V/us. The device operates within a supply voltage range of 5 V to 16 V, with a maximum operating temperature of +125 C and a minimum of -40 C. Key electrical specifications include an input offset voltage of 30 uV, an input bias current of 1 pA, and an input voltage noise density of 12 nV/sqrt Hz. It provides a common-mode rejection ratio of 110 dB and delivers an output current of 140 mA per channel while consuming 1.4 mA of operating power.

Feature Summary

• Utilizes DigiTrim precision trimming technology to achieve low offset voltage across the common mode range.
• Features rail-to-rail output capability for maximum dynamic range in single-supply applications.
• Designed for high impedance sensor interfaces due to extremely low input bias current.

Applications

• Medical equipment signal conditioning
• Precision reference buffering
• Portable battery-operated systems

Procurement Notes

Verify the specific suffix 'REEL' against official Analog Devices documentation to confirm packaging format and quantity. Ensure the component matches the LFCSP-8 package type required for your design. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before procurement.

Selection Notes

Select this component when low offset voltage and low bias current are critical for maintaining accuracy in high-impedance circuits. The 4 MHz bandwidth suits applications requiring moderate speed with high DC precision. Consider the 16 V maximum supply voltage for compatibility with higher voltage rails compared to standard 5 V op-amps.

Part Context

This part belongs to the AD8661 series of precision CMOS operational amplifiers from Analog Devices. The series is characterized by its combination of low power consumption and high precision, utilizing patented trimming techniques. It is designed to replace older bipolar precision amplifiers in modern low-power designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the AD8661 family, such as dual or quad versions (e.g., AD8662, AD8664), if system requirements change. Verify that any substitute maintains the same LFCSP-8 package and electrical specifications like input bias current and offset voltage.