MCP4261-503E/SL Integrated Circuits (ICs)

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The MCP4261-503E/SL is a member of the Data Acquisition - Digital Potentiometers product family. It is a single-channel 8-bit digital potentiometer that can be used for situations that require highly precise and adjustable variable resistances. The MCP4261-503E/SL is a very versatile part that can be used in a variety of applications.

Features of MCP4261-503E/SL

The MCP4261-503E/SL digital potentiometer features a low power consumption of 260 μA (typical) in active mode, and a wide operating temperature range of −40°C to +85°C. This digital potentiometer also offers extremely precise resistance adjustment wiper settings with a minimum of ±2% step size. Additionally, it provides non-volatile memory storage and features in-circuit programming (ICSP™) technology. This allows users to easily progam and store their resistor settings even when the system is powered down. It also includes a low power shutdown to offer power savings when the device is not in use, and an impedance matching network for driving capacitive loads.

Application Fields of MCP4261-503E/SL

The MCP4261-503E/SL can be used in of variety of applications including audio volume control, fan speed control, LED brightness control and more. In particular, it can be used in professional audio equipment for both studio and live performances as a volume adjustable potentiometer. It can also be used in motor control applications. For example, it can be used to adjust the speed of a fan depending on the temperature of the environment or to adjust the brightness of LEDs according to the surrounding light conditions. The versatility of the MCP4261-503E/SL makes it suitable in many dry contact closure applications.

Working Principle of MCP4261-503E/SL

The MCP4261-503E/SL operates on a two-wire interface where one of the two wires is for power and the other for control. The device features a non-volatile memory storage so it can remember the stored settings even when power is removed. The settings are loaded into the device via the ICSP™ programming port or via the control wire (using a Pulse Width Modulation or Pulse Frequency Modulation). Once the device is programmed, the user can select the desired wiper settings by changing the input voltage. The internal ladder structure of the device will then adjust the resistance of the device accordingly.

The MCP4261-503E/SL is a single-channel 8-bit digital potentiometer that combines small footprint size, low power consumption and a wide operating temperature range to provide an excellent solution for digital potentiometer applications. Its versatile programming and adjustable resistance settings make it suitable for a wide range of applications.

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