LM4040DIM3-2.5-T

Overview

The LM4040DIM3-2.5-T is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, housed in an SOT-23-3 surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and requires a minimum operating current of 60 µA.

Feature Summary

• Provides stable fixed output voltage across industrial temperature ranges
• Designed for space-constrained applications via compact SOT-23-3 packaging
• Operates with ultra-low quiescent current suitable for power-restricted designs

Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise voltage references
• Handheld meters and test equipment

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm that the manufacturer designation aligns with current Analog Devices or Maxim Integrated sourcing channels. Ensure the component meets required RoHS compliance standards for your region before finalizing procurement orders.

Selection Notes

Select this component when a 1% accuracy level at 2.5 V is sufficient for the application. Consider the 150 ppm/°C temperature coefficient against stricter requirements. Evaluate the SOT-23-3 footprint constraints against available PCB real estate and thermal dissipation needs for shunt operation.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references. The 'D' suffix denotes the 1% initial accuracy grade, distinguishing it from higher precision variants like the A (0.1%) or B (0.2%) grades within the same series.

Replacement Considerations

LM4040BIM3-2.5+T offers improved 0.2% accuracy. LM4040AIM3-2.5+T provides 0.1% accuracy. LM4040DIX3-5.0+T is a 5V variant with similar accuracy.