MCP4661-104E/ST

Introduction

The MCP4661-104E/ST is a digital potentiometer belonging to the category of electronic components. It is commonly used in various electronic circuits and systems to provide variable resistance, offering flexibility and control in a wide range of applications.

Basic Information Overview

• Category: Electronic Components
• Use: Variable Resistance in Electronic Circuits
• Characteristics: Digital Control, Compact Size, High Resolution
• Package: Surface Mount Technology (SMT)
• Essence: Providing Precise and Programmable Resistance
• Packaging/Quantity: Available in Tape & Reel Packaging, Quantity Varies

Specifications

• Resolution: 7-bit
• Interface: I2C
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Tolerance: ±20%

Detailed Pin Configuration

The MCP4661-104E/ST features a standard pin configuration with specific pins dedicated to power supply, communication interface, and the resistor terminals. The detailed pinout is as follows: 1. VDD (Power Supply) 2. SDA (I2C Data) 3. SCL (I2C Clock) 4. A Terminal (Resistor Terminal A) 5. W Terminal (Wiper Terminal) 6. B Terminal (Resistor Terminal B) 7. VSS (Ground)

Functional Features

• Digital Control: Allows precise adjustment of resistance through digital signals.
• Non-Volatile Memory: Retains settings even when power is removed.
• I2C Interface: Enables easy integration with microcontrollers and other digital systems.

Advantages and Disadvantages

Advantages: - Precise and Programmable Resistance - Compact Size - Non-Volatile Memory

Disadvantages: - Limited Tolerance (+/- 20%)

Working Principles

The MCP4661-104E/ST operates by digitally controlling the position of the wiper within the potentiometer, effectively changing the resistance between the A and B terminals. This digital control allows for precise and repeatable adjustments, making it suitable for applications requiring accurate resistance values.

Detailed Application Field Plans

The MCP4661-104E/ST finds extensive use in various applications, including: - Audio Equipment: Volume and tone control circuits - Instrumentation: Calibration and signal conditioning - Automotive Electronics: Sensor calibration and control systems - Industrial Control: Variable speed drives and motor control

Detailed and Complete Alternative Models

• MCP4131: 8-bit resolution digital potentiometer
• MCP4261: Dual-channel digital potentiometer with similar specifications
• AD8403: Digital potentiometer with parallel interface and higher resolution

In conclusion, the MCP4661-104E/ST digital potentiometer offers precise and programmable resistance control in a compact package, making it an essential component in various electronic systems and circuits.

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