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LM4040AIM3X-8.2/NOPB – Voltage Reference

The LM4040AIM3X-8.2/NOPB is a voltage reference IC that provides a stable and guaranteed precision reference voltage. It offers aHigh-accuracy tolerance of 0.44% and low temperature coefficient, ideal for precision voltage sources in systems requiring precise reference voltages. It operates over an ambient temperature range of -40°C to +125°C, and has an operating supply voltage of up to 12V.

Application Field

The LM4040AIM3X-8.2/NOPB is suitable for applications where a stable and high precision reference voltage is needed. This can be in measuring circuits, embedded systems and systems requiring a precise reference voltage. It is also used for calibration and compensation in systems requiring precise reference adjustments or in sensor testing or in detailed studies.

Working Principle

The LM4040AIM3X-8.2/NOPB is an adjustable precision voltage reference. The reference voltage is generated by a bandgap circuit and is set with a resistor. The resistor is connected between an adjustable terminal and ground, with the adjustable terminal connected to a reference voltage through external resistors. As the output voltage increases, the current through the resistor increases, causing the voltage drop across the resistor to increase and adjusting the output voltage accordingly. This provides the desired output voltage accuracy and temperature stability.

The LM4040AIM3X-8.2/NOPB absorbs very low currents and provides excellent line regulation. It is designed to work over a wide temperature range, making it suitable for use in temperature-sensitive applications. The device is provided in a hermetic package, making it suitable for use in harsh environments and also offers wide power supply voltage range.

Conclusion

The LM4040AIM3X-8.2/NOPB is a precise voltage reference with a high accuracy tolerance of 0.44%. It is suitable for precise reference circuits operating over a wide temperature range, and offers wide power supply voltage range and an adjustable output voltage. This makes the LM4040AIM3X-8.2/NOPB an ideal choice for a variety of applications requiring a steady and precise voltage reference.

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