LM4040C30ILP

Overview

The LM4040C30ILP is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output of 3V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 100 ppm/°C. It utilizes a TO-92-3 through-hole package, drawing a cathode current of 82 µA. The maximum shunt current is 15 mA, and the noise level is 35 µVrms from 10Hz to 10kHz.

Feature Summary

• Micropower operation suitable for battery-powered applications
• High precision with ±0.5% initial accuracy
• Low temperature drift of 100 ppm/°C
• Through-hole TO-92-3 packaging

Applications

• Portable instrumentation
• Battery-operated systems
• Data acquisition systems
• Temperature measurement circuits

Procurement Notes

Verify component authenticity against official Texas Instruments documentation. Confirm package type matches TO-92-3 specifications. Ensure operating conditions align with the -40°C to +85°C range. Check for RoHS compliance status in current datasheets. Validate part number suffixes for any functional variations.

Selection Notes

Select this component when a stable 3V reference is required in through-hole designs. Consider the 82 µA quiescent current for low-power constraints. Evaluate thermal performance within the specified ambient temperature limits. Compare noise specifications against application requirements for signal integrity.

Part Context

Part of the LM4040 family of precision micropower shunt references. Designed for applications requiring high stability and low power consumption. Offers alternatives in surface-mount packages like SC70-5 and SOT-23-3 for different board space constraints.

Replacement Considerations

LM4040C30IDCKRE4 (SC70-5), LM4040C30QDBZR (SOT-23-3). Verify pinout compatibility and thermal characteristics when substituting surface-mount variants.