LM4040EIM7-3.0/NOPB

$0.14

Description：VOLTAGE REFERENCE
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:5bf2515f996b Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：VOLTAGE REFERENCE
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：3V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：5-TSSOP, SC-70-5, SOT-353
Supplier Device Package：SC-70-5
Grade：Automotive
Qualification：AEC-Q100

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LM4040EIM7-3.0/NOPB

Overview

The LM4040EIM7-3.0/NOPB is a micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed 3.0 V output with an initial accuracy of ±0.5%. The device operates within an industrial temperature range of -40°C to +85°C and features a maximum temperature coefficient of 100 ppm/°C. Packaged in the compact SOT-23 (TO-236) surface-mount format, it draws a typical cathode current of 67 µA at 25°C. The component supports a maximum shunt current of 15 mA and includes low-frequency noise characteristics suitable for precision analog applications.

Feature Summary

Provides stable fixed voltage output over the industrial temperature range
Designed for space-constrained applications using the SOT-23 package
Operates with ultra-low quiescent current for power efficiency

Applications

Portable battery-powered instrumentation
Data acquisition systems
Handheld meters

Procurement Notes

Verify that the ordering suffix 'NOPB' confirms lead-free status and RoHS compliance as per manufacturer specifications. Confirm the 'M7' suffix corresponds to the SOT-23 package variant rather than other package types within the family. Ensure the 'E' grade matches the required ±0.5% initial accuracy tolerance for the specific design constraints.

Selection Notes

Select this component when a fixed 3.0 V reference is required in a small footprint. The 100 ppm/°C temperature coefficient offers sufficient stability for general-purpose industrial applications. Consider the 67 µA operating current against system power budgets. Verify compatibility with downstream ADC input ranges requiring a precise 3.0 V rail.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series includes variants with different output voltages and accuracy grades. The LM4040EIM7-3.0/NOPB specifically targets the 3.0 V output requirement with E-grade accuracy. It serves as a drop-in replacement for older National Semiconductor versions while maintaining pinout compatibility.