LM4040C50FTA

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The LM4040C50FTA, part of National Semiconductor\'s (now Texas Instruments) precision voltage reference product family, is a precision, low temperature drift high-accuracy voltage reference diode. The LM4040C50FTA is designed to provide high accuracy with low temperature drift, making it suitable for a variety of precision voltage control and measurement system applications. The LM4040C50FTA Product Family is based on National Semiconductor\'s patented Adaptive Band Gap Technology, which provides an improved level of accuracy and temperature stability, as well as reducing the number of external components required. This Product Family is offered in a range of voltage references covering 0. 8 to 10V, and has a typical temperature coefficient of 100ppm/°C.

The LM4040C50FTA is a high accuracy voltage reference with a low temperature drift, making it a suitable device for precision voltage control and measurement systems. It is suitable for use in battery-powered equipment, data converters, and systems requiring a precise voltage source. This device is also suitable for use in fabrication processes requiring precise levels of temperature compensation. It provides a continuous temperature range from 0°C to 70°C and a superior line regulation from -0.05% at 1V to +0.05% at 10V.

In addition, the LM4040C50FTA can be used in voltage sensing and current limit circuits, which can be utilized in battery charging applications. It also exhibits excellent noise immunity when used in noise sensitive applications. It is also suitable for use in a variety of systems such as process control, automotive, telecommunications and consumer electronic devices.

The LM4040C50FTA is designed to provide high accuracy and low temperature drift by drawing references from a wide variety of sources, including temperature-stabilized zener diodes, bandgap references, or any type of precision voltage source. The Reference Voltage output is developed from a combination of a temperature-stabilized zener diode and an amplifier stage with low-noise transistors, providing a precise output level with excellent temperature stability. This device is supplied as a 3-pin SOT-23 type package, and features a pullup resistor on its Positive Voltage Input, allowing it to be used in multiple applications.

The LM4040C50FTA works by comparing the voltage of the reference to its positive input. The difference between the reference voltage and input voltage is then amplified by a high-impedance unity-gain amplifier. The amplifier then creates a bias voltage that is supplied to the other end of the diode, creating an output voltage. The amplifier includes an on-chip temperature compensation circuit to ensure that temperature changes do not affect the output voltage level.

The LM4040C50FTA is a robust and reliable voltage reference with an excellent long-term stability. It is well-suited for applications such as battery charging, process control, automotive, telecommunications and consumer electronics which require precise levels of accuracy and temperature stability. This device is simple to use and provides reliable results, making it a great addition to any system that requires a precise voltage reference.

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