LM4040CIM3-2.5/NOPB

$0.59

Description：IC VREF SHUNT 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8944ca2f89ef Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.5V
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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LM4040CIM3-2.5/NOPB

Overview

The LM4040CIM3-2.5/NOPB is a precision micropower shunt voltage reference from Texas Instruments, housed in a SOT-23 package with three pins. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 100ppm/°C. Key electrical specifications include a maximum cathode current of 15mA, a minimum operating current of 65µA, and a noise level of 35µVrms over the 0.1Hz to 10Hz frequency band.

Feature Summary

Micropower operation with low minimum operating current for efficient power management
Precision voltage regulation with tight initial accuracy tolerance
Low noise performance suitable for sensitive analog signal processing
Compact surface-mount packaging for space-constrained designs

Applications

Portable instrumentation requiring stable reference voltages
Battery-powered systems where low quiescent current is critical
Data acquisition systems needing precise analog-to-digital conversion references
Temperature measurement circuits utilizing thermocouples or RTDs

Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status as indicated by the NOPB designation. Ensure the selected variant aligns with specific accuracy and temperature coefficient requirements for the target application environment.

Selection Notes

Select this component when a fixed 2.5V reference is needed in a small SOT-23 footprint. Consider the 100ppm/°C temperature coefficient for thermal stability needs. Evaluate the 65µA minimum current requirement against the circuit's biasing conditions to ensure proper regulation without excessive power consumption.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed output voltages and accuracy grades. The CIM3 suffix denotes the commercial temperature range and SOT-23 surface-mount package configuration, distinguishing it from automotive or industrial variants.