ADR4525DEZ-R7

Overview

The ADR4525DEZ-R7 is a high-precision, low-power voltage reference from Analog Devices featuring an output voltage of 2.500 V and an initial accuracy of ±0.02%. It operates within a supply voltage range of 3 V to 15 V and delivers up to 10 mA of source/sink current. The device exhibits ultralow noise performance with a typical value of 1.25 μV p-p in the 0.1 Hz to 10 Hz bandwidth. It is housed in an 8-lead LCC package and supports extended industrial temperature ranges depending on the specific grade.

Feature Summary

• Features innovative core topology for industry-leading temperature stability and low noise performance
• Provides high accuracy with minimal thermally induced output voltage hysteresis
• Supports low dropout operation suitable for portable equipment applications

Applications

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

Procurement Notes

Verify the exact grade (A, B, C, or D) required for your application, as specifications such as temperature coefficient and operating temperature range vary significantly between grades. Confirm that the LCC package form factor matches your PCB footprint design. Ensure input voltage remains within the specified 3 V to 15 V range during operation.

Selection Notes

Select this component when system requirements demand ultralow noise combined with high initial accuracy. Consider the specific temperature coefficient requirements; D grade offers the lowest drift but limited to 0°C to 70°C, while B grade covers -40°C to +125°C. Evaluate load regulation needs, as sinking current performance differs by grade.

Part Context

This part belongs to the ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 family of ultralow noise, high accuracy voltage references. The family shares common architectural features including low quiescent current and robust line/load regulation capabilities across various fixed output voltages.

Replacement Considerations

Direct replacements include other members of the ADR452x series such as ADR4520, ADR4530, ADR4533, ADR4540, and ADR4550, provided the output voltage matches the system requirement. Verify pin compatibility between SOIC and LCC packages if substituting package types.