ADR3625BRMZ

Overview

The ADR3625BRMZ is a precision voltage reference from Analog Devices Inc., featuring a fixed 2.5 V output in an 8-lead MSOP package. It offers high accuracy with a maximum initial output voltage error of ±0.04% and a temperature coefficient of 3 ppm/°C. The device supports up to 16 V input, provides 70 mA sourcing current, and operates within a -40°C to +125°C range.

Feature Summary

• Utilizes proprietary DigiTrim technology for precise trimming of output voltage and temperature coefficient during production.
• Features low thermal hysteresis and low long-term drift to enhance system lifetime accuracy.
• Capable of sourcing up to 70 mA, serving as a direct replacement for standard low dropout regulators.

Applications

• Precision power supplies
• Portable instrumentation
• Process transmitters

Procurement Notes

Verify the specific grade suffix (B) against project requirements to ensure compliance with the ±0.04% initial accuracy specification. Confirm that the 8-lead MSOP package dimensions align with the PCB footprint design. Ensure the application circuit includes the mandatory minimum load capacitance of 0.1 μF for stable operation.

Selection Notes

Select this component when high current drive capability is required alongside micropower consumption. The B-grade specification ensures tighter tolerance limits compared to the A-grade variant. Consider the 1.8 V logic compatible enable pin for microcontroller integration. Evaluate thermal dissipation requirements if operating near maximum load currents at elevated temperatures.

Part Context

This part belongs to the ADR3625/ADR3630/ADR3650 family of precision, micropower, high current output voltage references. While sharing core architecture and features, the ADR3625 is distinguished by its specific 2.5 V nominal output voltage and a typical dropout voltage of 0.25 V at 10 mA load.

Replacement Considerations

The datasheet identifies the ADR3625 as an exceptional replacement for standard low dropout (LDO) regulators. No specific substitute part numbers are documented in the provided source material.

FAQ

What is the minimum load capacitance required for the ADR3625BRMZ?

A minimum load capacitance of 0.1 μF is required for stable operation.

How does the ADR3625 handle short circuits?

It includes internal current-limit circuitry that limits the output source current to approximately 90 mA in the event of a short circuit to ground.