MCP41HV31T-503E/MQ

Memory Type:	Volatile
Base Part Number:	MCP41HV31
Supplier Device Package:	20-QFN (5x5)
Package / Case:	20-VQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	145
Temperature Coefficient (Typ):	100 ppm/°C
Tolerance:	±20%
Features:	--
Voltage - Supply:	1.8 V ~ 5.5 V, 10 V ~ 36 V, ±5V ~ 18 V
Series:	--
Interface:	SPI
Resistance (Ohms):	50k
Number of Taps:	128
Number of Circuits:	1
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Data Acquisition - Digital Potentiometers

Digital potentiometers, also known as digital variable resistors, are an increasingly important type of data acquisition and control devices. MCP41HV31T-503E/MQ is a digital potentiometer in the Microchip MCP41 series product family that provides a wide choice of resolution, power supply voltage, temperature range and ESD protection.

Application Field

MCP41HV31T-503E/MQ provides 10kOhm resistance range and has a resolution range of 64 positions. It is suitable for signal conditioning, analog generation of sine waves, linear voltage adjustment, signal dynamic range control and gain adjustment. These features make MCP41HV31T-503E/MQ well suited for a variety of applications, including data acquisition systems, process control systems, precision analog and digital circuits, test and measurement equipment, music instruments, and virtual reality simulations.

Working Principle

MCP41HV31T-503E/MQ uses an MCP4101 type digital potentiometer circuit to provide a resolution of 64 positions and a resistance range of 10000Ω. The digital potentiometer can be controlled by actively generating individual logic signals for each position, to enable the transfer of data from the microcontroller to the digital potentiometer circuit. The Digital Potentiometer can also be controlled in hot plug-in or ambient temperature environments, thanks to its low power MCP4101 type architecture.The digital potentiometer consists of 3 terminals: one for the power supply (V DD) and two identical resistor arms (A1 and A2). The resistance between A1 and A2 can be changed by controlling the position of the electronic switch, which is accomplished by a array of resistors. The switch can be moved to any of the 63 positions, which determines wiper’s position. By changing the wiper’s position, the resistance between A1 and A2 can be changed.

Conclusion

MCP41HV31T-503E/MQ is a digital potentiometer, very popular among its peers, providing excellent data acquisition capabilities to a wide range of applications. Its 10k ohm resistance range and 64 positions resolution enable it to be used to control signal conditioning, linear voltage adjustment, signal dynamics and gain adjustment. Its low power and hot pluggable operation ensures that its performance is stable in a variety of environments.

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