ADR550BRT-REEL7

Overview

The ADR550BRT-REEL7 is a high precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 5.0 V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 40 ppm/°C. The device operates within an industrial temperature range of −40°C to +85°C and supports an operating current range from 50 μA to 15 mA. It is housed in a 3-Lead SOT-23-3 package.

Feature Summary

• Ultracompact 3-Lead SOT-23-3 package design for space-critical applications
• Pin compatible with LM4040/LM4050 devices
• Eliminates the need for external compensation capacitors while remaining stable with any capacitive load

Applications

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

Procurement Notes

Verify the specific suffix 'BRT' corresponds to the Grade B accuracy (±0.2%) and SOT-23-3 package configuration required for your design. Confirm RoHS compliance status if mandated by your manufacturing standards. Ensure the supply voltage and bias resistor calculations accommodate the minimum 50 μA operating current and maximum 15 mA limit across the full temperature range.

Selection Notes

Select this component when a compact footprint is required alongside high precision stability. The 40 ppm/°C temperature coefficient offers significant improvement over standard alternatives. Verify that the system can maintain the minimum 50 μA cathode current under all operating conditions to ensure regulation stability.

Part Context

This part belongs to the ADR520/ADR525/ADR530/ADR540/ADR550 series of high precision shunt mode voltage references. These devices utilize band gap concepts to produce stable references suitable for high accuracy data acquisition components. The series is designed for low power consumption and ease of use in handheld applications.

Replacement Considerations

The datasheet explicitly states pin compatibility with LM4040 and LM4050 devices. Designers may consider these as direct pin-compatible alternatives if sourcing constraints exist, though electrical specifications such as noise and accuracy should be compared against the ADR550 requirements.