LM4132BMFX-4.1

Voltage Reference Overview

The LM4132BMFX-4.1/NOPB is a precision series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 package. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +125°C and features a maximum supply current of 60 µA. It supports a maximum load current of 20 mA and functions with an input voltage up to 6 V.

Voltage Reference Feature Summary

• Utilizes EEPROM registers for curvature correction and temperature coefficient adjustment on a CMOS band-gap architecture.
• Includes an enable pin that facilitates a low-power shutdown mode with minimal supply current consumption.
• Capable of delivering high output current without requiring an external output capacitor or buffer amplifier.

Voltage Reference Applications

• Instrumentation and process control systems
• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free status and RoHS compliance as per manufacturer specifications. Confirm the 'F' suffix corresponds to the tape-and-reel packaging format intended for automated assembly processes. Ensure the component grade matches the required initial accuracy tolerance for the target application design.

Voltage Reference Selection Notes

Select this component when a fixed 4.096 V reference is required with ±0.1% initial accuracy. The B-grade designation ensures a temperature coefficient suitable for general precision applications. Consider the SOT-23-5 footprint for space-constrained designs where a 20 mA load capability is necessary without additional buffering components.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references from Texas Instruments. The family offers various voltage options and grades (A through E) to accommodate different accuracy and cost requirements. The LM4132 series is designed to compete with laser-trimmed bipolar references while utilizing cost-effective CMOS technology.

Voltage Reference Replacement Considerations

LM4132AMFX-4.1/NOPB: Offers higher initial accuracy (±0.05%) compared to the BMFX variant.

Voltage Reference FAQ

Does the LM4132BMFX-4.1 require an output capacitor for stability?

No, the device does not require an output capacitor or buffer amplifier for stable operation.

What is the function of the EN pin on the LM4132BMFX-4.1?

The EN pin serves as an enable input that allows the device to enter a shutdown mode with significantly reduced supply current.