ADR525BKS-R2

Overview

The ADR525BKS-R2 is a high precision shunt mode voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±0.2%. The device features a maximum temperature coefficient of 40 ppm/°C and operates within an industrial temperature range of −40°C to +85°C. Housed in an ultracompact 3-Lead SC70 package, it requires no external compensation capacitor while maintaining stability with any capacitive load. The minimum operating current is 50 μA, supporting low-power applications.

Feature Summary

• Ultracompact 3-Lead SC70 package design for space-critical applications
• High precision performance with ±0.2% initial accuracy and 40 ppm/°C temperature coefficient
• Capable of operation without an external compensation capacitor
• Includes a trim terminal allowing output voltage adjustment over a ±0.5% range

Applications

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

Procurement Notes

Verify the specific ordering suffix R2 against the manufacturer's official documentation to confirm packaging details and compliance status. Ensure the selected component matches the required Grade B specifications for accuracy and temperature drift. Cross-reference the pin configuration and outline dimensions with the datasheet to guarantee compatibility with the intended PCB footprint and assembly processes.

Selection Notes

Select this component when a precise 2.5 V reference is needed in a minimal footprint. The Grade B variant offers superior accuracy compared to Grade A options. Consider the trim terminal if system-level calibration is required to offset errors. Verify that the operating current range of 50 μA to 15 mA aligns with the power budget and bias resistor calculations for the target circuit design.

Part Context

This part belongs to the ADR520/ADR525/ADR530/ADR540/ADR550 series of high precision shunt voltage references. These devices utilize band gap technology to achieve stable performance across varying temperatures. The series is designed to replace older generation references while offering improved thermal characteristics and reduced physical size through advanced semiconductor manufacturing techniques.

Replacement Considerations

The datasheet indicates pin compatibility with the LM4040 and LM4050 series. Designers should verify electrical parameter alignment before substitution.