MCP4632-502E/UN

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Data Acquisition - Digital Potentiometers have been becoming increasingly popular as non-volatile, silicon-based alternatives to analog potentiometers for a wide range of applications. This type of digital potentiometer is made for use in applications requiring more precise, reliable, low-cost control of electrical signals. In this article, we will look at the MCP4632-502E/UN Digital Potentiometer, its application field and its working principle.

MCP4632-502E/UN

The MCP4632-502E/UN Digital Potentiometer, produced by Microchip Technology, is specifically designed to provide up to 256 wiper positions and 256 taps to offer precise control of electrical signals when used in applications requiring automatic gain control, volume control, filters, bridges, and other similar uses. The MCP4632-502E/UN consists of a resistor array and wiper switching logic which enables 256 wiper positions to be selected along with 256 tap points. It is a bi-directional digital potentiometer, meaning it is capable of adjusting the resistance value in both directions.

The MCP4632-502E/UN is an 8-lead SOIC (small outline integrated circuit) and it operates from a single power supply of 1.8V to 5.5V. It features non-volatile memory and an internal 10k ohm resistor. It has a wide operating temperature range of -40°C to +125°C and it supports SPI, QSPI, and I2C interface.

Application Field

The MCP4632-502E/UN Digital Potentiometer is used in a wide range of applications, most commonly in automated gain control, volume control, bridge circuits, and filters. It is also often used in ATE (automatic test equipment), HVAC (heating, ventilation, air conditioning) systems and device powered by AC adapter systems. It is also used in applications where a resistance range needs to be adjusted regularly or over time.

The microchip technology digital potentiometer is most popular for its great precision, which guarantees low temperature coefficient of resistance and excellent long term stability. Its non-volatile memory remembers the last setting even when power is removed. The MCP4632-502E/UN operates from a single power supply of 1.8V to 5.5V, making it suitable for most applications.

Working Principle

The MCP4632-502E/UN Digital Potentiometer works by providing the user with up to 256 taps and 256 wiper positions, which allows for a reliable total resistance range of 10k ohms to 100k ohms. The internal resistor array consists of four resistance elements and the wiper switch within the potentiometer provides the user with up to 256 wiper positions. The wiper switch also allows for up to 256 taps. A simple resistor divider relationship is used to transfer voltage between Resistance Ground (RG) and Wiper Tip (WT) and the resistance value can be determined using this formula: R = RWT/RP.

The digital potentiometer also features non-volatile memory, which allows it to remember its last setting and does not need to be re-programmed when power is removed. It also features interface communication protocols such as SPI, QSPI, and I2C, which allow for programming and transferring information from a microcontroller.

Conclusion

The MCP4632-502E/UN Digital Potentiometer is a great choice for applications requiring reliable control of electrical signals. It provides 256 wiper positions and 256 taps which allows the user to get precise values of resistance and has non-volatile memory which allows it to remember the previous setting when power is removed. Additionally, it is capable of working on single power supply range of 1.8V to 5.5V, and can be programmed using the SPI, QSPI, and I2C interface communication protocols.

The specific data is subject to PDF, and the above content is for reference