AD8617WARZ-RL

Overview

The AD8617WARZ-RL is a single-channel, low-cost, micropower operational amplifier from the Analog Devices AD8613/AD8617/AD8619 family. It features rail-to-rail input and output capabilities, making it suitable for buffering CMOS ADCs and DACs in low-power systems. The device operates on a single supply voltage ranging from 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.5 V. It offers a maximum offset voltage of 2.2 mV, a maximum input bias current of 1 pA, and a typical noise density of 22 nV/√Hz at 10 kHz. The amplifier draws a maximum supply current of 50 μA per channel over the temperature range and is qualified for automotive applications.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in low-voltage single-supply systems.
• Micropower consumption with a maximum supply current of 50 μA per amplifier across the operating temperature range.
• Low noise performance with a voltage noise density of 22 nV/√Hz at 10 kHz.
• Automotive qualification ensures reliability and controlled manufacturing standards for automotive environments.

Applications

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

Procurement Notes

Verify that the ordering suffix RL corresponds to the reel packaging format specified in the official Analog Devices ordering guide. Confirm the W suffix indicates automotive qualification status as documented in the datasheet. Ensure the component meets RoHS compliance requirements indicated by the Z suffix. Cross-reference the package type R-8 (8-Lead SOIC_N) with the outline dimensions provided in the technical documentation to ensure board layout compatibility.

Selection Notes

Select this component when designing portable or loop-powered instrumentation requiring low power consumption and high precision. The rail-to-rail I/O capability makes it ideal for interfacing with wide output swing devices like CMOS ADCs and ASICs. Consider its low input bias current and low noise characteristics for sensitive sensor interfaces. Verify that the operating supply voltage range of 1.8 V to 5.5 V aligns with the system power budget.

Part Context

The AD8617WARZ-RL belongs to the AD8613/AD8617/AD8619 series of low-cost, micropower, low-noise CMOS rail-to-rail input/output operational amplifiers. This family includes single, dual, and quad configurations. The AD8617 specifically denotes the single-channel variant. The 'W' suffix signifies automotive qualification, while 'R-8' indicates the 8-lead SOIC package. These amplifiers are designed for applications demanding low power, low noise, and wide common-mode input voltage ranges.

Replacement Considerations

The AD8617ARZ-RL is the commercial grade equivalent without automotive qualification. The AD8617ARMZ-REEL serves as an alternative in the 8-lead MSOP package. For quad-channel needs, consider the AD8619 series. Ensure any replacement matches the specific package footprint and electrical specifications outlined in the datasheet.

FAQ

Is the AD8617WARZ-RL unity gain stable?

Yes, the AD8617 is unity gain stable as stated in the Features section of the datasheet.

What is the maximum supply voltage for the AD8617WARZ-RL?

The device is fully specified to operate from a single supply of 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.5 V.

Does the AD8617WARZ-RL experience phase reversal?

No, the datasheet explicitly lists 'No phase reversal' as a key feature.