AD8619ARZ-REEL

Overview

The AD8619ARZ-REEL7 is a quad micro-power, low noise CMOS rail-to-rail input/output operational amplifier manufactured by Analog Devices Inc. It operates from a single supply 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 typical voltage noise density of 25 nV/√Hz at 1 kHz. The device features a gain bandwidth product of 400 kHz, a slew rate of 0.1 V/μs, and a maximum supply current of 50 μA per amplifier over the operating temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability enables full signal swing in low voltage single-supply systems.
• Micropower consumption with low supply current suitable for battery-powered applications.
• Low input bias current minimizes loading effects on high impedance signal sources.
• Unity gain stable operation without phase reversal when inputs exceed the supply rails.

Applications

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

Procurement Notes

Verify the specific package option against the ordering guide, as the AD8619 series includes both SOIC and TSSOP variants. Confirm that the suffix indicates RoHS compliance. Ensure the automotive qualified versions are distinguished if required for specific reliability standards. Check datasheet revisions for any specification updates prior to final design integration.

Selection Notes

Select this component for designs requiring low power consumption combined with precision DC performance. The quad configuration reduces board space compared to individual amplifiers. Consider the 400 kHz bandwidth for applications requiring moderate signal processing speeds. Verify that the 0.1 V/μs slew rate meets the dynamic requirements of the target application.

Part Context

This part belongs to the AD8613/AD8617/AD8619 family of low cost micropower amplifiers. The AD8619 specifically provides four independent channels in a 14-lead package. It shares core architectural features with the single-channel AD8613 and dual-channel AD8617, offering consistent performance characteristics across the series for system scalability.

Replacement Considerations

The AD8619W models are automotive qualified versions of this commercial part. Designers should verify if the automotive grade specifications differ from the standard commercial parameters before substitution.