LM4040CIZ-4.1/NOPB

Overview

The LM4040CIZ-4.1/NOPB is a micropower shunt voltage reference from Texas Instruments, providing a fixed output of 4.096 V. It operates within an input voltage range of 4.1 V to 5 V and supports a maximum cathode current of 15 mA with a minimum operating current of 88 µA. The device features an initial accuracy of ±0.5% and a temperature coefficient of 100 ppm/°C. It is housed in a SOT-23 (SC-59) surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Micropower operation with low quiescent current consumption suitable for battery-powered applications
• High precision performance with ±0.5% initial accuracy and stable temperature characteristics
• Compact SOT-23 surface-mount packaging designed for space-constrained circuit designs

Applications

• Portable instrumentation requiring precise voltage references
• Battery-operated measurement systems
• Data acquisition systems needing stable analog references

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range (-40°C to +85°C) and 'Z' denotes tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration. Ensure ordering codes match exact electrical specifications to avoid functional mismatches in production environments.

Selection Notes

Select this component when a fixed 4.096 V reference with ±0.5% tolerance is required in a small SOT-23 footprint. It is appropriate for designs prioritizing low power consumption alongside moderate precision. Compare against higher accuracy variants if tighter tolerances are necessary, or consider series references if input voltage constraints differ significantly from the specified 4.1 V minimum.

Part Context

This part belongs to the LM4040 family of micropower shunt voltage references manufactured by Texas Instruments. The family offers various fixed output voltages and accuracy grades in compact packages. The LM4040CIZ variant specifically targets industrial applications requiring reliable performance over extended temperature ranges while maintaining low power usage in portable electronic devices.

Replacement Considerations

LM4040CIZ-4.1/G4 serves as a direct replacement within the same product family, maintaining identical electrical characteristics and pinout compatibility.