LM4040CIM3X-10/NOPB

Overview

The LM4040CIM3X-10/NOPB is a micropower shunt voltage reference from Texas Instruments, operating within a temperature range of -40°C to +85°C. It provides a fixed output voltage of 10V with an initial accuracy of ±0.5%. The device features a low temperature coefficient of 30 ppm/°C and operates with a cathode current of 67 µA. It supports a maximum shunt current of 15 mA and has a minimum input voltage requirement of 10V. Packaged in SOT-23-3 for surface mount installation.

Feature Summary

• Provides stable fixed voltage reference via shunt topology
• Designed for micropower applications with low quiescent current consumption
• Maintains high precision across the industrial temperature range

Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition circuits

Procurement Notes

Verify the specific suffix 'CIM3X' indicates tape and reel packaging configuration distinct from cut tape or tube variants. Confirm that the 'NOPB' designation ensures lead-free and RoHS compliance status as per manufacturer specifications. Ensure the selected distributor source aligns with the original equipment manufacturer's authorized supply chain to guarantee component authenticity and traceability.

Selection Notes

Select this component when a 10V fixed reference is required in a compact SOT-23-3 package. The ±0.5% initial accuracy and 30 ppm/°C temperature coefficient make it suitable for general-purpose precision applications. Consider the 67 µA operating current for battery life optimization compared to higher current alternatives.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed output voltages and accuracy grades. The CIM3X variant specifically denotes the commercial temperature grade, SOT-23-3 surface mount package, and reel packaging format within the broader family of precision reference devices.

Replacement Considerations

LM4040CIM3-10/NOPB (Cut Tape variant)

FAQ

What is the minimum input voltage required for proper operation?

The minimum input voltage must be at least equal to the nominal output voltage of 10V to maintain regulation.

Does this component include a shutdown feature?

No, the LM4040CIM3X-10/NOPB does not have a shutdown pin; it operates continuously once powered.