LM4040A25IDBZR

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A voltage reference, also known as a precision voltage reference or a stable voltage reference, is an electronic component that produces a constant voltage at a defined load. A voltage reference is commonly used to ensure a precisely regulated output voltage from a power supply or to ensure precise measurements from analog-to-digital converters. The LM4040A25IDBZR voltage reference is a Micropower Shunt Voltage Reference that is low energy and easy to use, as well as a precision temperature coefficient. This allows applications that require precise reference voltage with relative ease.

Typically, voltage reference devices will have an input node, an output node and a ground, along with an enable pin. The input node is the input voltage, the output node is the regulated output voltage and the ground node is the potential reference, usually zero volts. When the enable pin is activated the output voltage will maintain its regulated voltage level derived from the input voltage. The LM4040A25IDBZR allows for the addition of external precision resistors in series to increase the output voltage provided.

The LM4040A25IDBZR is a shunt-based voltage reference that operates from a low input voltage of 1.5V. This low voltage allowance allows for efficient power delivery to a wide range of applications. The LM4040A25IDBZR provides a fixed voltage drop from the input voltage of 2.5V, making it the perfect device for rail-to-rail systems. It offers excellent accuracy over temperature, with an initial accuracy of ±4.5mV at 25°C and ±6mV over the full range of temperature. This temperature coefficient makes it well suited for temperature sensitive applications.

The LM4040A25IDBZR is designed for use in high-precision, low-noise, lightweight applications such as solar power, battery-operated and automotive applications. With a variety of functions, this micropower voltage reference is ideal for use in battery-powered applications. It is available in a SOT-23 package, allowing it to be used in a variety of form factors. The LM4040A25IDBZR also features a low quiescent current of 200pA and a wide operation temperature range of -40°C to +105°C.

In addition to its low input voltage, low quiescent current, and regulation accuracy, the LM4040A25IDBZR also offers design flexibility by allowing for external resistor options. Resistor networks can be added around the reference to create a user defined reference voltage. This is done by adding a voltage divider network between the output node and the input node. By using the adjustable voltage divider, the user can customize the output voltage of the LM4040A25IDBZR to suit their application needs.

The LM4040A25IDBZR is an excellent micropower voltage reference that is perfectly suited for precision applications. Its low input voltage and wide range of temperature allows it to be used in both portable and stationary applications. Its temperature stability and user definable output voltage make it an ideal choice for a variety of applications.

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