LM4040DIM3-2.0/NOPB

$0.19

Description：IC VREF SHUNT 1% SOT23-3
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:92ab903b8493 Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 1% SOT23-3
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.048V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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LM4040DIM3-2.0/NOPB

Overview

The LM4040DIM3-2.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and requires a minimum operating current of 100 µA. The component is housed in a SOT-23-3 surface-mount package.

Feature Summary

Provides stable precision voltage reference performance across industrial temperature ranges
Designed for space-constrained applications using compact SOT-23-3 packaging
Operates with ultra-low power consumption suitable for battery-powered systems

Applications

Portable instrumentation requiring low power consumption
Battery-operated measurement devices
Data acquisition systems needing precise voltage references

Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix indicates lead-free (NOPB) compliance and RoHS status. Ensure the package type matches the required SOT-23-3 footprint for PCB layout compatibility. Check datasheet revisions for any updates to electrical characteristics or thermal parameters before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 2.048 V reference is required with ±1% initial accuracy. Consider the 150 ppm/°C temperature coefficient for thermal stability requirements. Evaluate the 100 µA minimum operating current against the circuit's quiescent load. Verify that the SOT-23-3 package dimensions fit the available board space constraints compared to larger packages.

Part Context

This part belongs to the LM4040 family of micropower shunt voltage references. The series offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. Different suffixes denote varying accuracy grades such as 0.1%, 0.2%, 0.5%, and 1%. The DIM3X variant specifically denotes the SOT-23-3 package configuration with the 2.048 V output setting.