LM4132CMF-1.8

Voltage Reference Overview

The LM4132CMF-1.8 is a precision series voltage reference from Texas Instruments, housed in a SOT-23-5 package. It provides a fixed output voltage of 1.8 V with an initial accuracy of ±0.2%. The device features a temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within an input voltage range up to 6 V and functions across a temperature range of -40°C to +125°C. The component includes a shutdown enable feature and consumes low quiescent current.

Voltage Reference Feature Summary

• Precision series voltage reference topology with tight initial accuracy
• Integrated shutdown enable control for power management
• Low temperature drift characteristics for stable performance
• Compact surface-mount packaging suitable for space-constrained designs

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition systems
• Medical equipment requiring high stability

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance when sourcing. Confirm the 'CMF' designation corresponds to the standard commercial grade temperature range and SOT-23-5 package variant. Ensure the ordering part number matches the required 1.8 V output specification exactly, as other variants exist within the LM4132 family.

Voltage Reference Selection Notes

Select this component when a fixed 1.8 V reference is required with ±0.2% initial accuracy. It is suitable for applications needing low power consumption and a shutdown function. Compare against higher accuracy grades if tighter tolerance is needed. Ensure the operating environment stays within the specified commercial temperature limits.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower shunt voltage references. It shares architectural similarities with other members like the LM4132DMFX and LM4132BMFX but differs in initial accuracy grades and specific output voltage options. The CMF suffix typically denotes the commercial grade version in the SOT-23-5 package.

Voltage Reference Replacement Considerations

LM4132CMF-1.8/NOPB serves as the direct lead-free equivalent. Other LM4132 variants with different output voltages or accuracy grades may be considered if electrical parameters align with system requirements.