AD8538WAUJZ-R7

Instrumentation, Op Amps, Buffer Amps Overview

The AD8538WAUJZ-R7 is a single-channel, low power, precision auto-zero operational amplifier manufactured by Analog Devices. It features an extremely low maximum offset voltage of 13 µV and an input offset drift of 0.03 µV/°C across the extended industrial temperature range of −40°C to +125°C. The device operates on a single supply from 2.7 V to 5.5 V with a typical supply current of 180 µA per amplifier. Key electrical specifications include a gain-bandwidth product of 430 kHz, a slew rate of 0.4 V/µs, and a low input bias current of 25 pA. It is qualified for automotive applications and housed in a 5-lead TSOT-23 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Auto-zero architecture ensures ultra-low offset voltage and minimal drift over temperature variations.
• Qualified for automotive applications with controlled manufacturing standards.
• Single-supply operation optimized for battery-powered and portable equipment.
• High common-mode rejection ratio and power supply rejection ratio.

Instrumentation, Op Amps, Buffer Amps Applications

• Mobile communications
• Portable instrumentation
• Battery-powered devices
• Sensor interfaces
• Temperature measurement

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the specific suffix WAUJZ-R7 corresponds to the automotive grade (W), 5-lead TSOT-23 package (UJ), and reel packaging (R7) as listed in the official Analog Devices ordering guide. Confirm RoHS compliance status associated with the Z suffix. Ensure the source documentation explicitly supports these attributes before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high precision is required in space-constrained designs due to its small 5-lead TSOT-23 footprint. It is suitable for applications demanding low power consumption alongside high accuracy, such as battery-operated sensors. Designers should verify that the 430 kHz bandwidth and output drive capabilities meet the specific signal processing requirements of the target circuit.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the AD8538/AD8539 family of low power, precision, auto-zero op amps. While the AD8539 offers dual channels, the AD8538 provides a single channel configuration. The 'W' designation indicates automotive qualification, distinguishing it from standard commercial variants within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include other parts from the AD8538 series with different packaging or reel options, such as AD8538AUJZ-REEL7 or AD8538AUJZ-R2, provided they meet the specific automotive and package requirements.