LM4040DEM3-3.0-T

Overview

The LM4040DEM3-3.0-T is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, featuring a fixed 3.0 V output and ±1% initial accuracy. It operates within an industrial temperature range of -40°C to +85°C with a maximum temperature coefficient of 150 ppm/°C. The device supports a maximum shunt current of 15 mA and utilizes a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides stable reference voltage in space-constrained designs using the SOT-23-3 package
• Maintains high precision across the industrial temperature range
• Operates with ultra-low quiescent current for power efficiency

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Handheld meters

Procurement Notes

Verify the manufacturer designation as Analog Devices Inc./Maxim Integrated or Texas Instruments, as production rights have transferred. Confirm the suffix 'T' indicates tape-and-reel packaging and ensure the specific accuracy grade matches design requirements. Check RoHS compliance status for the specific lot.

Selection Notes

Select this component when a low-cost, small-footprint reference is required for non-critical applications. The ±1% accuracy and 150 ppm/°C temperature coefficient are suitable for general-purpose circuits where extreme precision is not mandatory. Ensure the load current remains within the specified operational limits.

Part Context

This part belongs to the LM4040 family of micropower shunt references. The 'DE' suffix denotes the 3.0 V output voltage with ±1% initial accuracy. The family offers various accuracy grades (A, B, C, D) and voltages, all sharing similar low-power characteristics and package options like SOT-23-3.

Replacement Considerations

LM4040BIM3-3.0+T: Offers higher precision (±0.2%) but may differ in cost and availability.