MCP4631T-103E/ST

Memory Type:	Volatile
Base Part Number:	MCP4631
Supplier Device Package:	14-TSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	75
Temperature Coefficient (Typ):	150 ppm/°C
Tolerance:	±20%
Features:	Selectable Address
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	--
Interface:	I²C
Resistance (Ohms):	10k
Number of Taps:	129
Number of Circuits:	2
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
Data Acquisition - Digital Potentiometers are a type of device that are used to control analog signals in ways that are more precise and efficient than traditional potentiometers. The MCP4631T-103E/ST is a device from this category designed to provide an industry-leading resolution of 4096 steps and low power requirements. This device is available in an 8-pin SOIC package, which makes it perfect for simple, low-profile applications.
Features
The MCP4631T-103E/ST has a wide range of features that make it attractive for many different applications. It includes an internal voltage reference, which allows it to be used on a wide range of voltage levels up to 10V. It also features a microcontroller compatible serial interface, which allows direct communication with MCUs and integrated data capture. The device also comes with several protection features such as overvoltage protection, overtemperature protection, and short-circuit protection.
Application Fields and Working Principle
The MCP4631T-103E/ST application field covers Automation, Medical, Industrial Control, Accessories, and networking applications. Its applications can be further classified according to the specific control functions to be performed. Some application examples are:

• Assisted Driving: Controlling/monitoring, power/speed, navigation and emergency systems.
• Sensor Measurement: Capturing, storing, and analyzing data from temperatures, pressures, and other physical values.
• Data Acquisition: Transforming, capturing, storing, and transmitting data from analog to digital signals.
• Motor Control: Operating motors and controlling their speed, flight control systems, positioning systems.
• Power Supply Management: Controlling voltage, current, and temperature.

The principle behind the MCP4631T-103E/ST is the same as that of other digital potentiometers – a wiper arm is controlled over a series of resistors. When the wiper is moved, it produces an analogous resistance value that changes the signal current and thus the signal voltage. The device features a total of 4096 steps of non-volatile memory which allows for very precise control of the analog signal.
Performance
The MCP4631T-103E/ST is an extremely precise and efficient device. It offers a high resolution of 4096 steps and can be operated in a very low power state of only 1.5mA. Its small package size and low-profile makes it the ideal choice for applications requiring a small footprint. Additionally, the device has a very low temperature coefficient which ensures accurate operations over a large temperature range from -40°C to +85°C.
Conclusion
The MCP4631T-103E/ST is an ideal device for Automation, Medical, Industrial Control, Accessories, and networking applications. It features an internal voltage reference, a microcontroller compatible serial interface, and overvoltage, overtemperature, and short-circuit protection. It offers industry-leading resolution of 4096 steps, a temperature range of -40°C to 85°C, and boasts an extremely low power requirement of only 1.5mA. The small package size and low profile make this device the perfect choice for applications requiring precise and efficient control of analog signals.

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