AD8617ARZ

Overview

The AD8617ARZ is a dual-channel, low-cost micropower CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates from single supplies of 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical specifications include a maximum offset voltage of 2.2 mV, a maximum input bias current of 1 pA, and a supply current of 38 μA per amplifier at 25°C. The device offers a gain-bandwidth product of 400 kHz, a slew rate of 0.1 V/μs, and a voltage noise density of 25 nV/√Hz at 1 kHz. It is housed in an 8-lead SOIC package.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing across the supply range.
• Micropower consumption with a typical supply current of 38 μA per channel.
• Low noise performance with a voltage noise density of 25 nV/√Hz.
• Extremely low input bias current of 1 pA maximum.

Applications

• Battery-powered instrumentation
• Multipole filters
• Current shunt sense circuits
• ADC predrivers
• DAC drivers and level shifters

Procurement Notes

Verify that the ordering suffix matches 'ARZ' for the standard commercial grade 8-lead SOIC package. Confirm RoHS compliance indicated by the 'Z' suffix. Ensure the component meets the specified -40°C to +125°C operating temperature range. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component for applications requiring low power consumption alongside precision signal conditioning. The dual-channel configuration reduces board space compared to single amplifiers. Verify that the required bandwidth and slew rate meet system dynamic performance needs. Consider the rail-to-rail capability if interfacing with wide-swing devices like CMOS ADCs or DACs in low-voltage systems.

Part Context

The AD8617ARZ belongs to the AD8613/AD8617/AD8619 family of micropower, rail-to-rail input/output operational amplifiers manufactured by Analog Devices. This series includes single (AD8613), dual (AD8617), and quad (AD8619) variants designed for portable and loop-powered instrumentation. The AD8617 specifically provides two independent channels in an 8-lead package.

Replacement Considerations

The AD8617ARMZ serves as a direct pin-compatible replacement within the same family, offering identical electrical characteristics but packaged in an 8-lead MSOP format instead of the SOIC_N.

FAQ

Does the AD8617ARZ exhibit phase reversal during overload conditions?

No, the AD8617ARZ is designed to be unity gain stable and does not exhibit phase reversal when the input common-mode voltage exceeds the supply rails.

What is the maximum short-circuit current for the AD8617ARZ?

The absolute maximum ratings specify a short-circuit current of ±80 mA, allowing for indefinite short-circuit duration to ground without damage.