AD8646ARZ-REEL7

Overview

The AD8646ARZ-REEL7 is a dual-channel, precision CMOS operational amplifier manufactured by Analog Devices Inc. It features a 24 MHz gain bandwidth product and an 11 V/μs slew rate, supporting single-supply operation from 2.7 V to 5.5 V. The device offers rail-to-rail input and output capabilities with a maximum offset voltage of 2.5 mV and low noise density of 8 nV/√Hz at 1 kHz. It operates within a temperature range of -40°C to +125°C and is housed in an 8-lead SOIC package.

Feature Summary

• Rail-to-rail input and output capability for maximizing dynamic range in single-supply systems
• Low input bias current of 1 pA typical value suitable for high impedance sensor applications
• High output drive capability with short-circuit protection up to 120 mA
• Unity gain stable design ensuring stability across various closed-loop configurations

Applications

• Battery-powered instruments
• Multipole filters
• ADC front ends
• Photodiode amplifiers
• Barcode scanners

Procurement Notes

Verify the specific ordering suffix REEL7 corresponds to the required tape and reel packaging configuration before finalizing procurement. Confirm that the RoHS compliant status aligns with project regulatory requirements. Ensure the 8-lead SOIC package option matches the intended PCB footprint and assembly process specifications.

Selection Notes

Select this component when a dual-channel amplifier with wide bandwidth and low noise is required for single-supply applications. Consider the AD8647 variant if a power-down shutdown function is necessary for the specific circuit design. Evaluate the automotive qualified variants if the application demands compliance with automotive reliability standards.

Part Context

This part belongs to the AD8646/AD8647/AD8648 family of 24 MHz rail-to-rail amplifiers. The AD8646 specifically denotes the dual-channel version without a shutdown feature, distinguishing it from the AD8647 which includes shutdown pins. The family shares common electrical characteristics such as bandwidth, noise, and supply voltage ranges.

Replacement Considerations

Direct functional substitutes within the same package include the AD8646ARZ and AD8646ARZ-REEL. For automotive grade requirements, consider the AD8646WARZ series. Verify pin compatibility and thermal resistance values when replacing with other packages like MSOP.