ADR5041BKSZ-REEL7

Overview

The ADR5041BKSZ-REEL7 is a precision micropower shunt mode voltage reference manufactured by Analog Devices. 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 an input current range of 50 µA to 15 mA and functions across an extended temperature range from −40°C to +125°C. It is housed in an ultracompact SC-70 (KS-3) package, designed for space-critical applications without requiring external compensation capacitors.

Feature Summary

• Ultracompact SC-70 package design optimized for space-constrained environments
• High precision performance with ±0.1% initial accuracy and low temperature drift
• Wide operating current range supporting micro-power handheld applications
• Stable operation with any capacitive load without external compensation

Applications

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

Procurement Notes

Verify the specific suffix BKSZ corresponds to the Grade B accuracy variant in the SC-70 package. Confirm RoHS compliance status via the manufacturer's ordering guide. Ensure the supply voltage and bias resistor calculations accommodate the minimum 50 µA operating current requirement for stable regulation under all expected load conditions.

Selection Notes

Select this component when a precise 2.5 V reference is required in minimal footprint designs. The Grade B specification offers tighter tolerance than Grade A variants. Consider the wide operating current range if the application involves significant load variations or requires stacking multiple references for higher voltages. Verify thermal resistance requirements for the specific PCB layout.

Part Context

This part belongs to the ADR504x family of high-precision shunt voltage references, which includes models with outputs ranging from 2.048 V to 5.0 V. The family utilizes band gap technology to achieve low temperature coefficients. The KS-3 package option provides a smaller form factor compared to the SOT-23 alternative, making it suitable for dense circuit board layouts.

Replacement Considerations

The datasheet notes pin compatibility with LM4040/LM4050 devices. Designers should verify electrical specifications such as temperature coefficient and noise characteristics against these alternatives to ensure functional equivalence in the specific application context.