MCP4331-103E/ML

Memory Type:	Volatile
Base Part Number:	MCP4331
Supplier Device Package:	20-QFN-EP (4x4)
Package / Case:	20-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	75
Temperature Coefficient (Typ):	150 ppm/°C
Tolerance:	±20%
Features:	--
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	--
Interface:	SPI
Resistance (Ohms):	10k
Number of Taps:	129
Number of Circuits:	4
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Digital Potentiometers

Digital potentiometers are instruments used to acquire analog signals and convert them into digital representation. The MCP4331-103E/ML is one such device specifically designed for the purpose of digital potentiometer applications. The device is an integrated circuit (IC) that contains a rotary switch, potentiometer and an analog-to-digital conversion element, which uses an SPI bus for communication.The device can be connected to a microcontroller via an SPI bus, making it an invaluable data acquisition tool for applications that require the precise control of analog signals. A single device can control up to 32 switch and potentiometer elements, each with its own configurable options.The MCP4331-103E/ML requires a minimum of three external components to operate effectively: an external voltage reference, an internal reference voltage, and a feedback capacitor. The device accepts an analog input signal and converts it to a 12-bit digital representation by multiplexing the signals through a network of 32 rotary switches and potentiometer elements.The device can be configured to work in either independent or dependent modes, depending on the application requirements. In independent mode, each potentiometer element controls its own separate input signal. In dependent mode, each potentiometer element is affected by the adjacent elements, allowing for a more precise level of control when multiple elements are connected together.The device provides a high level of accuracy, with a typical accuracy of ~0.34% (1/11th of a single bit). It has a wide range of applications, including motor control, instrumentation, power conversion, and robotics.The operating temperature range of the MCP4331-103E/ML is -40°C to +125°C. It is also very power efficient, consuming only 80µW in operation. The device is RoHS compliant, and it is available in an 8-pin SOIC package suitable for automated assembly processes.Overall, the MCP4331-103E/ML is an excellent data acquisition tool for applications that require precision control of analog signals. The device has exceptional accuracy and is easy to interface with via SPI, making it ideal for a wide range of digital potentiometer applications.

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