MCP4541T-502E/MF

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Data Acquisition - Digital Potentiometers

The MCP4541T-502E/MF is an integrated, non-volatile digital potentiometer (DPOT) which operates from a single +2.7 V to +6.0 V supply voltage. It features EEMEM™ (Electrically Erasable Memory) technology which provides non-volatile memory for applications that operate in harsh environments. The device’s memory array is broken up into 16 addressable resisting (wiper) steps plus two end resistances. It is suitable for low frequency, low-power applications such as receiver calibration and channel selection.

The MCP4541T-502E/MF digital potentiometer is designed to fill the need for precision non-volatile digital adjustment in low frequency, low-power applications, such as receiver calibration and channel selection. It features a two-terminal adjustable resistance element which allows for adjustment and programming of digital potentiometer values. With a single supply voltage from +2.7 V to +6.0 V, the MCP4541T-502E/MF provides excellent performance. It features a technologically advanced EEMEM (Electrically Erasable Memory) technology, and the integrated memory array is non-volatile, allowing the user to store data in harsh or unpredictable environments. Other features of this device include low power consumption, low noise, and low offset voltage.

The MCP4541T-502E/MF performs various operations such as SET/PUSH/Time Set, Logic Low/High Controls, and Internal RAM Read/Write, which are all managed through the Serial Peripheral Interface (SPI). It utilizes non-volatile memory to store and recall digital potentiometer values.

The main application field of the MCP4541T-502E/MF devices is the wireless receiver calibration field. It is used to adjust settings to achieve a desired performance, such as receiver sensitivity, sensitivity threshold and noise characteristics. This device is also used for applications such as channel selection, audio volume control, frequency control, and light dimming.

The working principle of the MCP4541T-502E/MF digital potentiometer is based on the principle of voltage division in a potentiometer circuit. It consists of a series of resistors (that can be programmed either manually or electronically) that are connected in series. The resistors are divided into two groups: end resistors (also known as end stops) and wiper resistors (also known as addressing resistors). When the user adjusts the values of the wiper resistors, the resistance between the end stop resistors changes and a desired voltage division of the series is established. The voltage division will determine the total resistance between the two end resistors.

The MCP4541T-502E/MF device is programmable electronically through the SPI Interface. This allows the user to configure the resistors manually, as well as store the values in the EEMEM memory. The values stored in the memory can be recalled at any time and the device will operate according to the set parameters. The user can also manually adjust the values to achieve the desired settings.

In summary, the MCP4541T-502E/MF is an integrated, non-volatile digital potentiometer (DPOT) which operates from a single +2.7 V to +6.0 V supply voltage. It features EEMEM™ (Electrically Erasable Memory) technology which provides non-volatile memory for applications that operate in harsh environments. Its main application field is wireless receiver calibration and it is suitable for low frequency, low-power applications. The working principle of this device is based on the principle of voltage division in a potentiometer circuit. It is programmable either manually or electronically. The MCP4541T-502E/MF offers excellent performance with low power consumption, low noise, and low offset voltage.

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