MCP4161-103E/SN

Introduction

The MCP4161-103E/SN is a digital potentiometer belonging to the category of integrated circuits. It is commonly used in electronic circuits to provide variable resistance and is characterized by its compact package and digital control interface.

Basic Information Overview

• Category: Integrated Circuit
• Use: Variable Resistance in Electronic Circuits
• Characteristics: Compact, Digital Control Interface
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital Potentiometer
• Packaging/Quantity: Available in Tape & Reel packaging, with quantities varying based on supplier

Specifications

• Resistance Value: 10 kΩ
• Tolerance: ±20%
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Wiper Current: 1 mA
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The MCP4161-103E/SN has 8 pins, with the following configuration: 1. VSS (Ground) 2. A (Terminal A of Potentiometer) 3. B (Terminal B of Potentiometer) 4. W (Wiper Terminal of Potentiometer) 5. CS (Chip Select for SPI Interface) 6. SCK (Serial Clock for SPI Interface) 7. SI (Serial Input for SPI Interface) 8. VDD (Positive Power Supply)

Functional Features

• Digital control allows for precise adjustment of resistance
• SPI interface enables easy integration with microcontrollers and other digital systems
• Non-volatile memory ensures retention of settings during power cycles

Advantages and Disadvantages

Advantages

• Precise digital control
• Compact size
• Non-volatile memory
• Wide operating voltage range

Disadvantages

• Limited endurance compared to mechanical potentiometers
• Higher cost compared to traditional potentiometers

Working Principles

The MCP4161-103E/SN operates by digitally controlling the position of the wiper terminal, effectively changing the resistance between terminals A and B. This digital potentiometer uses non-volatile memory to store the wiper position, ensuring that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The MCP4161-103E/SN finds applications in various fields including: - Audio Equipment: Volume and tone control circuits - Instrumentation: Calibration and offset adjustment - Industrial Control: Variable setpoints and feedback control

Detailed and Complete Alternative Models

Some alternative models to the MCP4161-103E/SN include: - MCP4161-104E/SN: 100 kΩ digital potentiometer - MCP4162-103E/SN: Dual-channel 10 kΩ digital potentiometer - AD8403ARZ10: 10 kΩ digital potentiometer with I2C interface

In conclusion, the MCP4161-103E/SN digital potentiometer offers precise digital control and non-volatile memory, making it suitable for various electronic circuit applications.

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