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SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
2026/7/7
The LM4040BIM3X-2.5/NOPB is a high-precision shunt voltage reference produced by Texas Instruments. It provides a stable fixed 2.5V reference voltage for accurate calibration and voltage sampling in power management circuits.
Category:Integrated Circuits (ICs),Power Management (PMIC),Voltage Reference
Temperature Coefficient:100ppm/°C
Manufacturer:Texas Instruments
Noise - 10Hz to 10kHz:35µVrms
Packaging:Tape & Reel
Current - Cathode:65 µA
Part Status:Active
Operating Temperature:-40°C ~ 85°C (TA)
Reference Type:Shunt
Mounting Type:Surface Mount
Output Type:Fixed
Package / Case:TO-236-3, SC-59, SOT-23-3
Voltage - Output (Min/Fixed):2.5V
Current - Output:15 mA
Tolerance:±0.2%
High Precision:It features a strict output tolerance of ±0.2%, which ensures extremely accurate 2.5V voltage output. This high precision effectively reduces system error and improves the detection accuracy of the overall circuit.
Stable Temperature:The device has a low temperature coefficient of 100ppm/°C, resisting voltage drift caused by temperature changes. It can maintain stable output performance in a wide industrial temperature range.
Low Noise:It owns ultra-low noise of 35µVrms within 10Hz to 10kHz frequency band. The low-noise characteristic avoids signal interference and guarantees clean reference voltage output.
Fixed Output:This chip supports fixed 2.5V voltage output with stable and reliable voltage level. It does not require complex debugging and is convenient for rapid circuit design and application.
Strong Load:It provides up to 15mA output current to meet the driving demand of multiple peripheral circuits. The sufficient output current ensures normal operation of subsequent sampling and detection modules.
Wide Temperature:It works stably in the temperature range of -40°C to 85°C, adapting to harsh industrial working environments. It maintains consistent electrical performance in high and low temperature conditions.
Compact Package:Adopting SOT-23-3 surface-mount package, the chip occupies very little PCB board space. It is suitable for miniaturized, lightweight and highly integrated electronic equipment design.
ADC Calibration:Used as a standard voltage reference for single-chip ADC sampling circuits. It provides accurate reference voltage to eliminate sampling deviation and improve the accuracy of analog-to-digital conversion data.
Power Detection:Applied in industrial power supply voltage monitoring and feedback circuits. It assists the system to judge power supply fluctuations and realize real-time overvoltage and undervoltage protection functions.
Sensor Signal:Serves as reference voltage for pressure and temperature sensor acquisition modules. It stabilizes the sensor’s output baseline and ensures the authenticity and accuracy of collected analog signals.
Battery Monitor:Used in lithium battery capacity detection and voltage judgment circuits of portable devices. It provides fixed standard voltage for battery voltage comparison and remaining power calculation.
Instrument Amplifier:Matched with operational amplifier circuits for precision instrument signal conditioning. It stabilizes the amplifier’s working reference and improves the linearity and stability of signal amplification.
DC-DC Module:Applied in feedback calibration of DC-DC step-up and step-down power modules. It optimizes the output voltage accuracy of power modules and reduces power supply ripple error.
The LM4040BIM3X-2.5/NOPB is a high-precision, low-noise and stable shunt voltage reference chip. It is a cost-effective core component widely used in precision sampling, power management and analog circuit calibration scenarios.