MCP4261T-104E/ML

Memory Type:	Non-Volatile
Base Part Number:	MCP4261
Supplier Device Package:	16-QFN-EP (4x4)
Package / Case:	16-VQFN 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:	WiperLock™
Interface:	SPI
Resistance (Ohms):	100k
Number of Taps:	257
Number of Circuits:	2
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MCP4261T-104E/ML is a high-performance, digital potentiometer that covers a wide range of functions and applications. It is designed to be used in analog signal control and data acquisition applications, where it can provide an adjustable resistance range from 0 to 249.9KΩ in 1-kΩ increments. This potentiometer is also suitable for audio and power circuits, providing extremely linear and low-noise performance.The MCP4261T-104E/ML is a low cost, flexible solution for digital potentiometer applications. It has extremely low power consumption and can be powered from a single 3 V or 5 V supply. It is also easy to interface and can be controlled by any standard microcontroller or digital logic circuit, providing a very low cost but powerful alternative to other digital potentiometer solutions.

Application Field

The MCP4261T-104E/ML is an ideal solution for a wide range of data acquisition and signal control applications. It can be used in motor control, frequency synthesizer, audio volume control and contrast adjustment in display monitors. It is also useful for controlling current or voltage levels in automotive, industrial and instrumentation circuits, or to reduce the resonance in clock oscillators. The MCP4261T-104E/ML is also suitable for applications that require miniaturization and high-speed performance. Its low cost and small size make it an attractive option for analog signal conditioning products, such as light and temperature sensors.

Working Principle

The MCP4261T-104E/ML is a non-volatile, digital potentiometer with a total resistance range from 0 to 249.9KΩ in 1-kΩ increments. It consists of a single-slope, non-volatile memory array, which is designed to hold an 8-bit data register.When the device is powered up, the 8-bit data register is initially loaded with a zero-based value, which will provide a low resistance (Rw) value of 0KΩ. This low or zero resistance value can then be changed as needed by writing a new 8-bit value into the data register. The resistance of the potentiometer can then be varied by increasing or decreasing the 8-bit register value, between 0KΩ and 250KΩ, in 1KΩ increments.The MCP4261T-104E/ML also features a slew rate control that allows the user to vary how quickly the potentiometer resistance will change. This will help to reduce the noise that can occur in some applications when the resistance is rapidly changed.

Conclusion

The MCP4261T-104E/ML is an ideal solution for digital potentiometer applications, such as motor control, audio volume control and contrast adjustment in display monitors. It is low cost, low power and miniaturized, yet provides excellent performance with a linear and noise free operation. It is also easy to interface and can be controlled by any standard microcontroller or digital logic circuit, making it a very powerful and flexible alternative to other digital potentiometer solutions.

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