MCP4661-104E/ST

Memory Type:	Non-Volatile
Base Part Number:	MCP4661
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:	Mute, Selectable Address
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	--
Interface:	I²C
Resistance (Ohms):	100k
Number of Taps:	257
Number of Circuits:	2
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tube

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• Introduction

The MCP4661-104E/ST is a low-power, compact, and user-friendly digital potentiometer. It combines a 10-tap linear potentiometer and a low-power, 8-bit parallel I/O interface. The device is designed to minimize power consumption, making it ideal for various applications such as data acquisition and sound control.

• Application Field

The MCP4661-104E/ST has been used in various applications such as audio level control, automotive, medical imaging, audio and video production, instrumentation, and many more. It is suitable for applications that require precise control and adjustment of voltage levels in digital or analog systems.In audio systems, the MCP4661-104E/ST is used to control the volume, balance, and other parameters of an audio signal without affecting the signal-to-noise ratio. In automotive applications, it is used for controlling the displacement of engine valves and the sensitivity of airbags. In medical imaging, it is used to control X-ray and CT scan exposure time, allowing for improved imaging quality. In instrumentation, it is used for controlling digital potentiometers in electronic production.The MCP4661-104E/ST is also used in a wide range of other applications, such as video editing and production, data logging, and radio frequency (RF) attenuation. Its many features, such as low power consumption and small package size, make it an ideal choice for a variety of applications.

• Working Principle

The MCP4661-104E/ST works by transmitting an 8-bit parallel signal through its I/O pins. This signal is received by an internal register, which passes it to the potentiometer. The potentiometer then adjusts its values according to the signal.When the MCP4661-104E/ST is used in applications that require precise control of voltage levels, the digital signal is converted to an analog signal using a Digital-to-Analog Converter (DAC). The analog signal is then passed back through the I/O pins.

• Conclusion

The MCP4661-104E/ST is a versatile and cost-effective digital potentiometer that is suitable for a wide range of applications. Its low power consumption and small package size make it an ideal choice for applications that require precise control of voltage levels. The device is used in a number of industries, such as automotive, medical imaging, audio and video production, instrumentation, and more. Its working principle is based on transmitting an 8-bit parallel signal through its I/O pins, which is then converted to an analog signal using a DAC.

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