AD8666ARMZ-REEL

Overview

The AD8666ARMZ-REEL is a dual precision CMOS operational amplifier from Analog Devices, housed in an 8-lead MSOP package. It operates on single supplies of 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. Key electrical parameters include a gain bandwidth product of 4 MHz, a slew rate of 3.5 V/µs, and a maximum input offset voltage of 2.5 mV. The device features rail-to-rail output capability, low noise density of 8 nV/√Hz at 10 kHz, and a maximum input bias current of 1 pA.

Feature Summary

• Rail-to-rail output stage for extended dynamic range
• Low input bias current suitable for high impedance sensors
• Unity-gain stable with wide signal bandwidth
• Lead-free packaging compliant with RoHS standards

Applications

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

Procurement Notes

Verify the specific ordering suffix REEL against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the component meets the required automotive qualification status if applicable, as commercial and automotive variants may have distinct reliability requirements. Cross-reference the pinout configuration with the datasheet outline dimensions before PCB layout finalization.

Selection Notes

Select this component for applications requiring low noise and high input impedance without popcorn noise artifacts. It serves as a cost-effective alternative to JFET amplifiers in systems utilizing high impedance sensors. Consider the 4 MHz bandwidth and 3.5 V/µs slew rate for moderate-speed signal processing tasks within the specified supply voltage range.

Part Context

This part belongs to the AD866x family of single-supply, rail-to-rail output amplifiers designed for cost-sensitive applications. The family includes models like the AD8665 and AD8668, offering varying channel counts and package options while maintaining consistent low noise and low bias current characteristics across the series.

Replacement Considerations

AD8666ARZ-REEL

FAQ

Does the AD8666ARMZ-REEL exhibit phase reversal upon input overload?

No, the device is designed to prevent output phase reversal when the input common-mode voltage exceeds the supply rails.

What is the maximum operating temperature for this component?

The component is specified for operation over an extended industrial temperature range up to +125°C.