LM4132BMFX-1.8/NOPB

Voltage Reference Overview

The LM4132BMFX-1.8/NOPB is a precision series voltage reference manufactured by Texas Instruments, housed in a surface-mount SOT-23-5 package. It provides a fixed output voltage of 1.8 V with an initial accuracy of 0.1%. 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 reliably across a temperature range of -40°C to +125°C. The component includes a shutdown enable feature and consumes a typical quiescent current of 60 µA.

Voltage Reference Feature Summary

• Provides high-precision voltage regulation with tight initial accuracy tolerances for sensitive analog circuits.
• Integrates a shutdown control pin to minimize power consumption during inactive periods.
• Delivers stable reference performance over a wide industrial temperature range with low drift characteristics.

Voltage Reference Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing precise analog-to-digital converter references
• Medical equipment requiring stable voltage sources in compact form factors

Voltage Reference Procurement Notes

Verify the specific suffix 'BMFX' indicates the B-grade accuracy (0.1%) and tape-and-reel packaging format. Confirm the 'NOPB' designation ensures lead-free and RoHS compliance as per manufacturer specifications. Cross-reference the full part number against official Texas Instruments documentation to ensure compatibility with design requirements before procurement.

Voltage Reference Selection Notes

Select this component when a 1.8 V reference is required with 0.1% initial accuracy and 20 ppm/°C drift. It is suitable for space-constrained designs utilizing the SOT-23-5 package. Consider the shutdown functionality if power management is critical. Ensure the application load does not exceed the 20 mA maximum shunt current rating.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades (A, B, C, D) in compact packages. The LM4132 series is designed to replace larger, higher-power references in portable and battery-operated applications while maintaining precision.

Voltage Reference Replacement Considerations

LM4132AMFX-1.8/NOPB offers tighter 0.05% accuracy. LM4132CMFX-1.8/NOPB provides 0.2% accuracy. LM4132DMFX-1.8/NOPB offers 0.5% accuracy. All share identical pinouts and electrical characteristics except for initial accuracy tolerance.