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Product Detailed Parameters
- Description：IC VREF SHUNT 2% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°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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Overview
The LM4040EEM3-3.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, housed in a 3-pin SOT-23 package. It provides a nominal output voltage of 3.0 V with an initial accuracy of ±0.5%. The device features a temperature coefficient of 100 ppm/°C and operates within a junction temperature range of -40°C to +85°C. It draws a typical cathode current of 67 µA and supports a maximum shunt current of 15 mA. The component is RoHS compliant and lead-free.
Feature Summary
- Provides stable reference voltage with low power consumption suitable for battery-operated systems
- Offers precision performance with tight initial accuracy and low temperature drift
- Utilizes compact surface-mount packaging for space-constrained designs
Applications
- Portable instrumentation requiring precise voltage references
- Battery-powered measurement devices
- Data acquisition systems needing stable analog references
Procurement Notes
Verify the specific suffix 'EE' against official Texas Instruments documentation to confirm pinout and electrical characteristics, as variations exist within the LM4040 family. Ensure the NOPB designation confirms lead-free and RoHS compliance status for your manufacturing requirements. Cross-reference the exact part number with the latest datasheet revision to avoid discrepancies in thermal or electrical specifications.
Selection Notes
Select this component when a 3.0 V reference with ±0.5% accuracy and 100 ppm/°C stability is required in a small SOT-23 footprint. Consider the 67 µA quiescent current for power-sensitive applications. Compare against other LM4040 variants if different accuracy grades or voltage outputs are needed. Ensure the operating temperature range meets the environmental conditions of the target application.
Part Context
This part belongs to the LM4040-N series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades in SOT-23 and TO-92 packages. The LM4040EEM3 variant specifically targets applications requiring 3.0 V output with moderate precision. The family is designed for general-purpose voltage referencing in portable and industrial electronics.
Replacement Considerations
LM4040DIM3-3.0/NOPB: Offers 1% accuracy and 150 ppm/°C TC. LM4040AIM3-3.0/NOPB: Offers 0.1% accuracy and 100 ppm/°C TC. Verify compatibility based on required accuracy and drift specifications.
