AD8619WARZ-RL

Overview

The AD8619WARZ-RL is a quad, low voltage, micropower CMOS operational amplifier from Analog Devices. It features rail-to-rail input and output capabilities, making it suitable for single-supply systems operating between 1.8 V and 5.5 V. The device offers a gain bandwidth product of 400 kHz and a maximum supply current of 50 μA per amplifier across the temperature range. Qualified for automotive applications under AEC-Q100 standards, it is housed in a 14-lead SOIC package.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in low voltage single-supply environments.
• Micropower consumption with a maximum supply current of 50 μA per amplifier over the operating temperature range.
• Qualified for automotive applications to meet specific quality and reliability requirements.
• Unity gain stable design ensures stability without requiring external compensation components.

Applications

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

Procurement Notes

Verify that the component matches the exact part number AD8619WARZ-RL, specifically confirming the 'W' suffix indicates automotive qualification and the 'Z' suffix denotes RoHS compliance. Ensure the package type corresponds to the 14-lead SOIC_N (R-14) option as specified in the ordering guide. Confirm the reel packaging format aligns with manufacturing requirements before finalizing procurement orders.

Selection Notes

Select this component when designing portable or loop-powered instrumentation requiring low power consumption alongside precision amplification. The rail-to-rail I/O capability allows buffering CMOS ADCs and DACs effectively. Consider the 400 kHz gain bandwidth product and low noise density for signal conditioning tasks where power efficiency is critical compared to higher performance but more power-hungry alternatives.

Part Context

This part belongs to the AD8613/AD8617/AD8619 family of low cost micropower op amps. While the AD8613 is single-channel and the AD8617 is dual-channel, the AD8619 integrates four amplifiers in a single package. All variants share identical electrical characteristics, including offset voltage and bias current specifications, differing only in channel count and available package options.

Replacement Considerations

The AD8619ARZ-REEL serves as a commercial grade equivalent within the same series. Designers should verify if automotive qualification is strictly required; if not, the non-W variant may be considered. Ensure pin compatibility remains consistent across the SOIC-14 package variations within this family.

FAQ

Does the AD8619WARZ-RL experience phase reversal?

No, the datasheet explicitly states that the device exhibits no phase reversal.

What is the input bias current specification?

The maximum input bias current is 1 pA at 25°C, increasing to 780 pA at the upper temperature limit of +125°C.