MCP4451T-103E/ST

Product Overview

Category

The MCP4451T-103E/ST belongs to the category of digital potentiometers.

Use

It is commonly used in electronic circuits for controlling resistance values digitally.

Characteristics

• Digital control of resistance
• Compact package size
• High resolution and accuracy
• Low power consumption
• Wide operating voltage range

Package

The MCP4451T-103E/ST is available in a small surface-mount package.

Essence

This digital potentiometer provides a convenient and precise method for adjusting resistance values in electronic circuits.

Packaging/Quantity

The MCP4451T-103E/ST is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Resolution: 10-bit
• Number of Channels: 1
• Resistance Range: 0Ω to 10kΩ
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Interface: I2C

Detailed Pin Configuration

The MCP4451T-103E/ST has the following pin configuration:

1. VDD: Power supply voltage
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. A0: Address selection bit
5. W: Write protect input
6. B: Terminal B of the potentiometer
7. Wiper: Wiper terminal of the potentiometer
8. A: Terminal A of the potentiometer
9. GND: Ground reference

Functional Features

• Digital control of resistance allows for precise adjustment in electronic circuits.
• I2C interface enables easy integration with microcontrollers and other digital devices.
• Low power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range allows for compatibility with various power supply voltages.

Advantages and Disadvantages

Advantages

• Precise and accurate resistance adjustment
• Compact size for space-constrained designs
• Easy integration with digital systems
• Low power consumption

Disadvantages

• Limited to single-channel operation
• Restricted resistance range compared to traditional potentiometers
• Requires I2C communication interface

Working Principles

The MCP4451T-103E/ST utilizes a combination of digital control and resistive elements to achieve precise resistance adjustment. The digital signals received through the I2C interface are converted into corresponding resistance values, allowing for fine-tuning of circuit parameters.

Detailed Application Field Plans

The MCP4451T-103E/ST finds applications in various fields, including:

1. Audio equipment: Volume control, tone adjustment
2. Instrumentation: Calibration, signal conditioning
3. Industrial automation: Process control, parameter adjustment
4. Automotive electronics: Climate control, lighting control
5. Consumer electronics: Display brightness control, user interface adjustment

Detailed and Complete Alternative Models

1. MCP4011T-103E/ST: 10-bit digital potentiometer, single-channel, 0Ω to 10kΩ resistance range.
2. MCP4461T-103E/ST: 10-bit digital potentiometer, dual-channel, 0Ω to 10kΩ resistance range.
3. MCP4251T-103E/ST: 10-bit digital potentiometer, single-channel, 0Ω to 10kΩ resistance range, SPI interface.

These alternative models offer similar functionality and can be considered as substitutes for the MCP4451T-103E/ST.

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