AD627ARZ

Instrumentation, Op Amps, Buffer Amps Overview

The AD627ARZ is a micro-power instrumentation amplifier manufactured by Analog Devices Inc., housed in an 8-lead SOIC package. It operates on single or dual supplies ranging from +2.2 V to ±18 V, with a maximum supply current of 85 µA and static current of 60 µA. The device offers a gain range of 5 to 1000 via a single external resistor, providing a bandwidth of 80 kHz at gain 5. Key electrical specifications include a power supply rejection ratio (PSRR) of 125 dB, input bias current of 10 nA, and rail-to-rail output swing. Operating temperature spans -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Micro-power architecture enabling operation in battery-supplied systems with minimal current consumption.
• Rail-to-rail output capability ensures high dynamic range even at low supply voltages.
• Single-resistor gain configuration simplifies circuit design while maintaining precision.
• High common-mode rejection ratio minimizes system errors in noisy environments.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered portable instrumentation
• Medical instruments such as ECG and EEG front ends
• 4mA to 20mA loop-powered sensor interfaces
• Thermocouple amplification circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific grade suffix (e.g., ARZ) against the manufacturer's datasheet to confirm performance tolerances and temperature ratings. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through official documentation before finalizing procurement for regulated markets.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low power consumption is critical alongside moderate bandwidth requirements. The AD627ARZ is suitable for applications requiring rail-to-rail output swing under low voltage conditions. Compare its 80 kHz bandwidth and 85 µA current draw against higher-speed or lower-noise alternatives if system demands exceed these limits.

Instrumentation, Op Amps, Buffer Amps Part Context

The AD627 belongs to Analog Devices' family of micro-power instrumentation amplifiers designed for cost-sensitive and energy-efficient applications. Unlike higher-performance models such as the AD620 or AD621, the AD627 prioritizes ultra-low quiescent current over high slew rate and wide bandwidth, making it distinct within the series for battery-operated constraints.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.