LM4132AMFX-3.3/NOPB

Voltage Reference Overview

The LM4132AMFX-3.3/NOPB is a precision series voltage reference manufactured by Texas Instruments, featuring a fixed output of 3.3 V with an initial accuracy of ±0.05% and a temperature coefficient of 20 ppm/°C. It operates within an input voltage range up to 6 V and supports a maximum shunt current of 20 mA. The device consumes a typical quiescent current of 60 µA and includes a shutdown enable feature. It is housed in a compact SOT-23-5 surface-mount package and functions reliably across an extended temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Provides high-precision voltage referencing with tight initial accuracy and low drift over temperature.
• Integrates a shutdown control pin for active power management and energy conservation.
• Delivers stable performance in a miniature five-pin surface-mount footprint.

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition channels

Voltage Reference Procurement Notes

Verify the specific suffix 'AMFX' confirms the A-grade accuracy (±0.05%) and reel packaging format. Ensure the 'NOPB' designation indicates lead-free compliance. Confirm the 3.3V output variant matches the circuit requirement, as other voltage options exist within the same family.

Voltage Reference Selection Notes

Select this component when strict accuracy and low temperature drift are critical. The A-grade specification ensures tighter tolerance than standard variants. The integrated shutdown function makes it suitable for battery-operated designs where standby current reduction is necessary compared to always-on references.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower series voltage references. It shares the SOT-23-5 package and core architecture with other variants like the LM4132EMFX and LM4132BMFX, differing primarily in accuracy grades and specific output voltages. The AMFX suffix denotes the specific accuracy class and tape-and-reel packaging configuration.

Voltage Reference Replacement Considerations

LM4132AMF-3.3/NOPB is the cut-tape equivalent of the reel-packaged LM4132AMFX-3.3/NOPB. Other LM4132 variants with matching 3.3V output and compatible accuracy may serve as substitutes if packaging or grade differences are acceptable.