ADR520BKS-R2

Overview

The ADR520BKS-R2 is a high precision shunt mode voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 2.048 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 requires an operating current between 50 μA and 15 mA. It is housed in an ultracompact 3-lead SC70 package.

Feature Summary

• Ultracompact 3-lead SC70 package design for space-critical applications
• Pin compatible with LM4040/LM4050 devices
• Integrated trim terminal allows output voltage adjustment over a ±0.5% range without affecting temperature coefficient
• Operates stably without requiring an external compensation capacitor

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the package type and reel quantity. Confirm RoHS compliance status if required for your manufacturing process. Ensure the supply voltage and bias resistor calculations accommodate the minimum 50 μA operating current requirement across the full temperature range.

Selection Notes

Select this component when a precise 2.048 V reference is needed in a minimal footprint. The B grade offers tighter accuracy than the A grade. Consider stacking multiple units or using the trim terminal if system-level error correction or higher voltage outputs are required. Verify that the load current requirements fall within the specified 50 μA to 15 mA range.

Part Context

This part belongs to the ADR52x series of high precision shunt voltage references from Analog Devices. The series includes variants with different output voltages (2.048 V, 2.5 V, 3.0 V, 4.096 V, 5.0 V) and packages (SC70, SOT-23-3). The 'B' designation indicates the higher accuracy grade compared to the 'A' grade.

Replacement Considerations

LM4040 and LM4050 are pin-compatible alternatives mentioned in the datasheet. Other ADR52x series parts may be used if the output voltage matches the application requirements.