LM4040DIZ-10.0

$0.25

Description：TWO TERMINAL VOLTAGE REFERENCE,
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:df739c8a3c05 Category: Voltage Reference Brand: National Semiconductor

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Product introduction

Product Detailed Parameters

Description：TWO TERMINAL VOLTAGE REFERENCE,
Series：-
Mfr：National Semiconductor
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：10V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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LM4040DIZ-10.0

Overview

The LM4040DIZ-10.0 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 10.0 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. Packaged in the SOT-23-3 (TO-236AB) surface-mount format, it supports a maximum shunt current of 15 mA.

Feature Summary

Provides a stable 10.0 V reference voltage with ±1% initial accuracy
Operates reliably across industrial temperatures from -40°C to +85°C
Designed for space-constrained applications using compact SOT-23-3 packaging

Applications

Portable battery-powered equipment requiring low power consumption
Data acquisition systems needing precise voltage references
Industrial process control instrumentation

Procurement Notes

Verify the manufacturer source carefully, as National Semiconductor was acquired by Texas Instruments. Confirm that the specific suffix 'I' corresponds to the commercial temperature range (-40°C to +85°C) rather than the extended industrial range found in other variants like the 'M'. Ensure the package type matches the required PCB footprint.

Selection Notes

Select this component when a 10V reference is required in a small SOT-23 package. Note that while the general LM4040 family offers higher precision versions (e.g., LM4040A/B), the 'D' suffix indicates ±1% tolerance. Verify if the 150 ppm/°C temperature coefficient meets the system's thermal stability requirements compared to tighter tolerance alternatives.

Part Context

This component belongs to the LM4040 series of micropower shunt voltage references. Unlike the lower-voltage variants (2.048V to 5.0V) which often feature tighter coefficients, the 10V version typically exhibits a higher temperature coefficient. It serves as a drop-in replacement for older discrete Zener diodes in regulation circuits where size and power efficiency are critical constraints.