ADR4525WBRZ-R7

Overview

The ADR4525WBRZ-R7 is a high-precision, low-power voltage reference with a fixed 2.5 V output. It features a maximum initial error of ±0.02% and a temperature coefficient of 2 ppm/°C over the −40°C to +125°C range. The device operates on an input voltage of 3 V to 15 V, drawing a maximum quiescent current of 950 μA. It provides ±10 mA sourcing and sinking capability with a typical dropout voltage of 500 mV at 2 mA. Output noise is 1.25 μV p-p from 0.1 Hz to 10 Hz. It is housed in an 8-lead SOIC package and holds AEC-Q100 automotive qualification.

Feature Summary

• Automotive-grade qualification for reliable operation in vehicle environments
• Ultra-low noise performance suitable for sensitive analog signal paths
• High accuracy with minimal initial error and excellent thermal stability
• Low power consumption optimized for battery-operated portable equipment

Applications

• Precision data acquisition systems
• High resolution data converters
• Industrial instrumentation
• Medical devices
• Automotive battery monitoring

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when ordering. Confirm that the WBRZ designation aligns with the required 8-lead SOIC package and automotive grade specifications. Ensure the component meets the extended industrial temperature range requirements for your specific application environment before finalizing procurement.

Selection Notes

Select this component when a fixed 2.5 V reference is required for automotive or high-reliability applications. It is appropriate for designs needing low noise and high precision without the complexity of adjustable references. Consider the 950 μA quiescent current limit for strict power budget constraints in portable systems.

Part Context

This part belongs to the ADR452x series of ultralow noise voltage references from Analog Devices. The family includes various fixed output voltages such as 2.048 V, 3.0 V, and 5.0 V. The ADR4525 variant specifically targets applications requiring a standard 2.5 V reference level with industry-leading stability and noise characteristics.

Replacement Considerations

ADR4525BRZ-R7

FAQ

Is the ADR4525WBRZ-R7 qualified for automotive applications?

Yes, the ADR4525W is explicitly qualified for automotive applications under the AEC-Q100 standard.

What is the maximum operating temperature for this device?

The device supports an operating temperature range from −40°C to +125°C.