AD8619ARUZ

Overview

The AD8619ARUZ is a quad micropower, low noise CMOS operational amplifier featuring rail-to-rail input and output capabilities. 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 supply current of 38 μA per amplifier. 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 a 14-lead TSSOP package.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in low-voltage single-supply systems.
• Micropower consumption with very low input bias current suitable for portable applications.
• Low noise performance with minimal phase reversal during overload conditions.
• Unity gain stable design compatible with various load capacitances.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure compatibility with the intended supply voltage and load requirements before procurement. Confirm RoHS compliance status as indicated in the ordering guide.

Selection Notes

Select this component for designs requiring low power consumption alongside precision amplification in space-constrained environments. The quad configuration reduces board space compared to individual amplifiers. Consider the 400 kHz bandwidth and 0.1 V/μs slew rate for moderate-speed signal processing tasks.

Part Context

This part belongs to the AD8613/AD8617/AD8619 family of low-cost micropower amplifiers. While sharing core architectural features, the AD8619 specifically provides four independent channels within a single package, distinguishing it from the single-channel AD8613 and dual-channel AD8617 variants.

Replacement Considerations

The AD8619ARZ serves as a pin-compatible alternative in a 14-lead SOIC package. Automotive-grade versions are available as AD8619WARUZ and AD8619WARZ.