MCP45HV51T-104E/ST

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Data Acquisition - Digital Potentiometers are a useful tool for measuring and controlling electrical signals as part of a system. The MCP45HV51T-104E/ST is a single-channel, digitally adjustable voltage divider that combines a low-power microcontroller with an 8-bit non-volatile memory (EEPROM). It provides a precision, wide-range resistive element with independent one-time programming and control, while being optimized for low power, small size, and low cost.

The MCP45HV51T-104E/ST is a potentiometer that operates as a voltage divider between two voltage points, one set to ground and the other set to the power source. The variable resistor value can be adjusted by programming the MCP45HV51T-104E/ST via an SPI interface or the voltage divider can be adjusted manually, e.g. with a potentiometer connected to a digital-to-analog converter (DAC) circuit. The maximum resolution depends on the number of bits used for the EEPROM, in this case 8 bits.

Features of the MCP45HV51T-104E/ST include a wide voltage range from 2.5V to 10V, an internal oscillator, 500nA quiescent current, a wide input voltage range, an I2C-compatible serial interface, and internal data address protection. It is suitable for a variety of applications, such as testing and debug, DC to DC switching, voltage regulation and control, robotics, motor control, and embedded system development.

The MCP45HV51T-104E/ST’s application fields and working principles are as follows:

• Applications: The MCP45HV51T-104E/ST is primarily used for controlling electric signals and devices. It is ideal for low-power and miniature applications, providing precision and fine adjustment over a wide range of electrical signal values. It can be used in various embedded systems, robotics, motor control, voltage regulation, and DC to DC switching applications.

• Working Principle: The MCP45HV51T-104E/ST consists of a low-power 8-bit microcontroller and an 8-bit non-volatile memory (EEPROM). The microcontroller is used to program the device, while the EEPROM stores data. By setting certain voltage points, the device can be used as a voltage divider, adjusting the voltage divide ratio according to the programmed values. This allows for precision and fine adjustment over a wide range of voltages.

In summary, the MCP45HV51T-104E/ST is a single-channel digitally adjustable voltage divider with an 8-bit non-volatile memory optimized for low power, low cost and small size. It is an ideal tool for controlling electrical signals and devices, providing precision and fine adjustment over a wide range of voltages. It can be used in a variety of applications such as embedded system development, robotics, and motor control.

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