ADR5041WARTZ-R7

Overview

The ADR5041WARTZ-R7 is a precision micropower shunt mode voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 75 ppm/°C. The device operates within a wide current range from 50 µA to 15 mA and functions reliably across an extended temperature range of −40°C to +125°C. Housed in an ultracompact SOT-23-3 package, it is qualified for automotive applications and requires no external compensation capacitor.

Feature Summary

• Qualified for automotive applications with controlled manufacturing standards
• Ultracompact SOT-23-3 surface-mount package design
• High initial accuracy of ±0.1% at 25°C
• Low temperature coefficient of 75 ppm/°C maximum

Applications

• Portable, battery-powered equipment
• Automotive systems
• Data acquisition systems
• Instrumentation and process control
• Energy management

Procurement Notes

Verify the specific suffix 'W' indicates automotive qualification and 'RTZ' denotes the SOT-23-3 package configuration. Confirm RoHS compliance status via official documentation. Ensure the ordering quantity matches the standard reel size of 3,000 units. Cross-reference the marking code R2N for identification purposes during assembly.

Selection Notes

Select this component when space constraints require an SOT-23-3 footprint alongside automotive reliability requirements. The 2.5 V output suits ADC references and DAC outputs. Verify that the bias resistor calculation accommodates the 50 µA minimum operating current at the lowest supply voltage and the 15 mA maximum limit at the highest supply voltage.

Part Context

This part belongs to the ADR504x family of high-precision shunt voltage references. The family includes variants with different output voltages (2.048 V, 3.0 V, 4.096 V, 5.0 V) and accuracy grades. The 'W' suffix specifically identifies models qualified for automotive environments, distinguishing them from commercial grade parts while sharing the same pinout and core architecture.

Replacement Considerations

Pin-compatible alternatives include LM4040 and LM4050 series devices. Verify that substitute components meet the specific automotive qualification requirements and match the 75 ppm/°C temperature coefficient specification.