MCP45HV51-104E/MQ

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Data acquisition systems depend on the collection and interpretation of data signals in order to perform their functions. Digital potentiometers, like MCP45HV51-104E/MQ, are special analog components that are used in many areas of data acquisition to regulate the amount of resistance within circuits. The way they do this is by using a small input current to make the resistance vary in linear increments across the terminals.

Characteristics of the MCP45HV51-104E/MQ

The MCP45HV51-104E/MQ digital potentiometer is a device specifically designed for high voltage applications. It features a wide supply voltage range of 8.0V to 28V and a single resistor configuration. This device contains an integrated 128 tap non-volatile memory, resulting in a very high resolution across the full range of the potentiometer. In addition, it features a low power mode, an adjustable potentiometer shutdown and an active power-down.

Applications of the MCP45HV51-104E/MQ

The MCP45HV51-104E/MQ digital potentiometer has a variety of data acquisition applications. It can be used to control the bias current on power supply voltage regulators, adjust the output voltage of regulators, and set the reference voltage of analog-to-digital converters. Additionally, these devices can also be used for controlling a variety of circuit parameters such as gain, time constants, and decay times. This makes them a very popular choice for data acquisition applications that require a high level of precision.

Working Principle of the MCP45HV51-104E/MQ

The MCP45HV51-104E/MQ is based on a simple but robust design. It is made up of two series-connected resistors, with the wiper connected to the output. There are two parameters that can be adjusted – the resistance between the wiper and the first terminal (R1), and the resistance between the wiper and the second terminal (R2). By adjusting these parameters, you can change the voltage output of the potentiometer, thus controlling the amount of resistance across the terminals.

To control the voltage output, an input current is applied to the potentiometer. This current will cause the resistance between the wiper and each terminal to change according to a linear law. For example, if the input current is increased, the resistance at the wiper will decrease and the voltage output will also decrease. Conversely, if the input current is decreased, the resistance at the wiper will increase and the voltage output will also increase.

The advantage of a digital potentiometer like the MCP45HV51-104E/MQ is that it provides very accurate and linear output over a wide range of resistance values. Furthermore, its non-volatile memory allows for rapid adjustment with no downtime. These features make it an ideal choice for many data acquisition applications.

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