MCP4252-104E/MF

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Data Acquisition applications often require adjustable voltage levels. Digital Potentiometers, also referred to as digipots, can provide this function. These devices have become an important component of many industrial, automotive and military applications as they offer precise, programmable adjustment of voltage levels. The MCP4252-104E/MF are digital potentiometers that are particularly suited for Data Acquisition applications.

The MCP4252-104E/MF is a member of the MCP4251/2/3 family of digipots offered by Microchip Technology. It is a 2-channel, 8-position rotary digital potentiometer, featuring Wiper Lock and EEPROM with a 10kΩ internal resistor. The 8-position setting can be programmed both at design time and during run time. The wiper lock feature provides a security measure for custom circuits that prevents unintentional changes to the potentiometer settings.

The MCP4252-104E/MF is capable of operating over a wide voltage range of 1.8V to 5.6V. This makes it an ideal choice for applications that require adjustable voltage levels over a wide range of voltages. The low power consumption of the MCP4252-104E/MF also ensures that it can be used in battery powered devices. The advanced non-volatile memory technology used in this device makes it possible to program and store settings over the entire temperature range.

In Data Acquisition applications, the MCP4252-104E/MF digital potentiometer is often used to adjust the input voltage level, or to set the output voltage gain. The potentiometer can also be used to adjust the characteristics of filters, attenuators and signal conditioners. With the use of serial communication protocols such as SPI, the wiper settings can be changed externally in order to adjust the voltage levels.

The working principle of the MCP4252-104E/MF is based on the analogy of a variable resistor, with a sliding contact that connects two terminals and whose resistance is adjustable by changing the position of the contact. In a digital potentiometer, the sliding contact is replaced by a moveable element that can be adjusted electronically. This is done by means of a digital controller, which generates the control signals for setting the wiper position.

The MCP4252-104E/MF digital potentiometer is particularly suitable for Data Acquisition applications due to its wide operating range and low power consumption. The EEPROM and the wiper lock features make it possible to program and store settings, while the advanced memory technology ensures that these settings are maintained over the entire temperature range. The versatile analog control feature allows the wiper to be adjusted externally using serial communication protocols such as SPI.

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