ADR5043BRTZ-R2

Overview

The ADR5043BRTZ-R2 is a precision micropower shunt mode voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 3.0 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 across an extended temperature range of −40°C to +125°C. It is housed in an ultracompact SOT-23-3 surface-mount package, designed for space-critical applications without requiring external compensation capacitors.

Feature Summary

• Ultracompact SOT-23-3 package design optimized for space-constrained environments
• High initial accuracy of ±0.1% with low temperature drift characteristics
• Wide operating current range supporting both micro-power and higher load conditions
• Stable operation with any capacitive load without external compensation

Applications

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

Procurement Notes

Verify the specific ordering suffix R2 against the manufacturer's official documentation to confirm the reel packaging configuration. Ensure the component grade B designation matches the required ±0.1% accuracy specifications. Confirm RoHS compliance status through the latest datasheet revision before procurement.

Selection Notes

Select this component when a precise 3.0 V reference is required in a minimal footprint. The wide input current capability allows flexibility in bias resistor selection. Consider the extended temperature range suitability for harsh environments. Evaluate the dynamic output impedance requirements for high-speed transient applications.

Part Context

This part belongs to the ADR504x family of precision shunt voltage references, which includes variants with different output voltages such as 2.048 V, 2.5 V, 4.096 V, and 5.0 V. All members share similar architectural features, including bandgap technology and micropower operation. The family is designed to replace legacy components while offering improved accuracy and thermal stability.

Replacement Considerations

The datasheet indicates pin compatibility with LM4040 and LM4050 series references. Designers should verify electrical parameter alignment, particularly temperature coefficients and operating current ranges, before substituting these legacy parts.