LM4041CIM3X-ADJ/NOPB

Overview

The LM4041CIM3X-ADJ/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It features an adjustable output voltage range from 1.225 V to 10 V, set via external resistors. The device operates with a minimum current of 45 µA and supports up to 12 mA. It offers an initial accuracy of ±0.5% and a temperature coefficient of 150 ppm/°C. Housed in a compact SOT-23-3 surface-mount package, it functions reliably across an extended industrial temperature range of -40°C to +125°C without requiring external stabilizing capacitors.

Feature Summary

• Adjustable output voltage capability ranging from 1.225 V to 10 V using external resistor dividers
• Stable operation with any capacitive load, eliminating the need for external stabilizing capacitors
• Low dynamic impedance and low noise characteristics ensure stable reverse breakdown voltage accuracy
• Micropower design suitable for battery-powered applications with minimal operating current

Applications

• Data acquisition systems requiring precise voltage references
• Portable and battery-powered equipment where power efficiency is critical
• Process control instrumentation and test equipment
• Precision audio circuits demanding low noise performance

Procurement Notes

Verify the specific suffix 'CIM3X' confirms the C-grade accuracy (±0.5%) and industrial temperature rating (-40°C to +85°C) or extended range depending on the exact datasheet revision, as 'Q' variants typically denote automotive qualification. Ensure the ordering part number matches the required tolerance and temperature grade specified in the design documentation. Confirm RoHS compliance status through official manufacturer channels prior to procurement.

Selection Notes

Select this component when an adjustable voltage reference is needed in a space-constrained SOT-23 package. It is ideal for designs requiring stability with capacitive loads without additional components. Consider the 150 ppm/°C temperature coefficient and ±0.5% initial accuracy against application requirements. Compare against fixed-voltage alternatives if the output range does not require adjustment.

Part Context

This part belongs to the LM4041-N family of precision voltage references from Texas Instruments. The family includes both fixed (1.225 V) and adjustable versions available in SC-70 and SOT-23 packages. The LM4041 series is designed for high-precision applications, utilizing fuse and Zener-zap trimming during wafer sort to achieve tight tolerances and low temperature drift.

Replacement Considerations

LM4041DIM3X-ADJ/NOPB: Offers similar functionality but may differ in temperature grade or packaging variant. Verify pinout compatibility and electrical specifications before substitution.