AD8665ARZ-REEL7

Instrumentation, Op Amps, Buffer Amps Overview

The AD8665ARZ-REEL7 is a single-channel, precision CMOS operational amplifier from the Analog Devices AD866x family. It features rail-to-rail output capability and operates on supply voltages ranging from 5 V to 16 V (single) or ±2.5 V to ±8 V (dual). Key electrical specifications include a maximum offset voltage of 2.5 mV, a gain-bandwidth product of 4 MHz, and a slew rate of 3.5 V/µs. The device exhibits low input bias current (1 pA max), low noise density (8 nV/√Hz at 10 kHz), and high power supply rejection ratio (115 dB). It is housed in an 8-lead SOIC package and functions within an extended industrial temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output stage provides full signal swing across the operating supply range.
• Low input bias current minimizes errors when interfacing with high-impedance sensors.
• Unity-gain stable design ensures reliable performance in buffer configurations without oscillation risks.

Instrumentation, Op Amps, Buffer Amps Applications

• Sensor amplification
• Photodiode amplification
• ADC driver circuits
• Medical equipment signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the ordering suffix REEL7 corresponds to the specific reel packaging configuration required for automated assembly processes. Confirm the component matches the 8-Lead SOIC_N physical outline dimensions specified in the datasheet. Ensure the procurement documentation explicitly states compliance with RoHS standards as indicated by the Z suffix in the part number.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel amplifier with rail-to-rail output is required for cost-sensitive applications typically utilizing JFET amplifiers. Consider the 4 MHz bandwidth and 3.5 V/µs slew rate for moderate-speed signal processing tasks. Evaluate the 1 pA input bias current suitability for high-impedance source interfaces compared to higher-bias alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the AD866x family of single-supply, rail-to-rail output amplifiers designed for extended operating ranges up to 16 V. The family includes dual-channel (AD8666) and quad-channel (AD8668) variants sharing similar architectural characteristics. The AD8665 specifically addresses requirements for low noise and low offset in single-channel designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The AD8666ARZ-REEL7 serves as a dual-channel equivalent within the same family. The AD8668ARZ-REEL7 offers a quad-channel configuration. Designers requiring automotive qualification should consider the AD8666WARZ-R7 or AD8668WARZ-R7 models instead.