LM4040DIX3-2.5+T

Temperature Coefficient:	150ppm/°C
Base Part Number:	LM4040
Supplier Device Package:	SC-70-3
Package / Case:	SC-70, SOT-323
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	70µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	35µVrms
Noise - 0.1Hz to 10Hz:	--
Series:	--
Tolerance:	±1%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Shunt
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Overview

The LM4040DIX3-2.5+T is a precision voltage reference device that provides highly accurate voltage sources for a variety of applications. This device is part of Texas Instrument’s Voltage Reference family and is classified as a Precision Voltage Reference (PMIC). This PMIC is specifically designed for a wide range of consumer, commercial, and industrial applications. The LM4040DIX3-2.5+T allows users to conveniently and accurately source a precision voltage at various currents or apply a high-precision voltage clamp. Its high precision and low noise characteristics makes it an ideal choice for mission critical systems requiring reliable operation. Additionally, the chip requires minimal external components to operate and is ideal for portable and low power circuits.

Application fields

The LM4040DIX3-2.5+T can be found in a variety of consumer, commercial, and industrial applications. It is perfectly suited for portable and battery powered applications due to its low power requirements. In the consumer space, it is used to provide a precise voltage source in cameras, media players, and other small electronic devices. In the commercial space, it is often used for professional equipment such as medical instruments, laboratory measurements, and power supplies. In the industrial space, it is used for measurement and control systems in factory automation.The LM4040DIX3-2.5+T can also be used to configure a variety of voltage regulation circuits, current sources, and voltage dividers. The device is well suited for systems requiring high precision in a small package. Its excellent temperature stability makes it an ideal choice for mission critical systems requiring long operational life.

Working principle

The LM4040DIX3-2.5+T is a precision voltage reference that uses a bandgap architecture to generate a stable, low-noise output voltage. The device is composed of several components including a temperature sensing element, an external capacitor, and a resistive divider.The temperature sensing element is responsible for monitoring the temperature and providing a feedback signal to the control circuitry. The external capacitor is used to stabilize the output voltage and reduce noise. The resistive divider is used to set the output voltage of the chip to the desired level.When power is applied to the device, the temperature sensing element begins to read the temperature. If the temperature rises above a certain level, the control circuitry adjusts the resistance of the resistive divider to compensate for the temperature change. This in turn adjusts the output voltage to maintain the desired level.

Conclusion

The LM4040DIX3-2.5+T is an excellent choice for a wide range of consumer, commercial, and industrial applications. This highly accurate voltage reference provides a stable, low-noise output voltage with minimal external components. The excellent temperature stability makes it ideal for mission critical systems while its low power requirements make it perfect for portable applications.

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