LM4040AEX3-2.1

$1.34

Description：PRECISION MICROPOWER SHUNT VREF
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk

SKU:cd46efe711a4 Category: Voltage Reference Brand: Analog Devices Inc./Maxim Integrated

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：PRECISION MICROPOWER SHUNT VREF
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.048V
Voltage - Output (Max)：-
Current - Output：15 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-70, SOT-323
Supplier Device Package：SC-70-3
Grade：-
Qualification：-

Download product information

LM4040AEX3-2.1

Overview

The LM4040AEX3-2.1 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.048 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 shunt current of 15 mA. It is housed in a compact SC-70-3 (SOT-323) surface-mount package, designed for applications requiring stable voltage references in space-constrained environments.

Feature Summary

Precision bandgap voltage reference topology ensuring stable performance
Micropower operation suitable for battery-powered systems
Compact SC-70-3 surface-mount package for space efficiency

Applications

Portable instrumentation requiring precise voltage standards
Battery-operated measurement devices
Data acquisition systems needing stable reference voltages

Procurement Notes

Verify the specific suffix EX3 indicates the SC-70-3 package configuration. Confirm the A grade corresponds to the 0.1% initial accuracy specification. Check current availability status as supply may be limited or subject to allocation. Ensure compatibility with existing PCB footprints for SOT-323 packages during integration.

Selection Notes

Select this component when a 2.048V reference with high precision (0.1%) is required in a small footprint. Consider the operating temperature range up to 125°C for industrial applications. Compare against other LM4040 variants if different voltage levels or package types are needed. Verify power dissipation limits based on the maximum shunt current of 15 mA in the target circuit design.

Part Context

The LM4040 series comprises precision two-terminal shunt mode bandgap voltage references available in multiple fixed reverse breakdown voltages including 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The LM4040AEX3-2.1 specifically denotes the 2.048V version in the SC-70-3 package with A-grade accuracy.