MCP4351T-502E/ST

Product Overview

Category

The MCP4351T-502E/ST belongs to the category of digital potentiometers.

Use

It is primarily used as a variable resistor in electronic circuits, providing a digitally controlled resistance value.

Characteristics

• Digital control interface
• Wide resistance range
• Low power consumption
• Compact package size
• High resolution

Package

The MCP4351T-502E/ST is available in a small surface-mount package.

Essence

The essence of the MCP4351T-502E/ST lies in its ability to replace traditional mechanical potentiometers with a digitally controlled alternative.

Packaging/Quantity

This product is typically packaged in reels and is available in large quantities for industrial applications.

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 8 bits
• Number of Channels: Single channel
• Interface: SPI (Serial Peripheral Interface)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MCP4351T-502E/ST has the following pin configuration:

1. VDD: Power supply voltage
2. CS: Chip select input
3. SCK: Serial clock input
4. SDI: Serial data input
5. SDO: Serial data output
6. GND: Ground

Functional Features

• Digital control allows precise adjustment of resistance values.
• SPI interface enables easy integration into microcontroller-based systems.
• Non-volatile memory retains settings even when power is disconnected.
• Low power consumption makes it suitable for battery-powered devices.
• High resolution provides fine-grained control over resistance levels.

Advantages and Disadvantages

Advantages

• Precise and accurate resistance control
• Compact size for space-constrained applications
• Low power consumption extends battery life
• Non-volatile memory retains settings

Disadvantages

• Limited resistance range compared to some analog potentiometers
• Requires digital interface for control

Working Principles

The MCP4351T-502E/ST utilizes a combination of digital-to-analog conversion and resistive ladder network techniques. The digital control interface allows the user to set the desired resistance value, which is then converted into an analog signal. This analog signal is used to adjust the resistance level within the device.

Detailed Application Field Plans

The MCP4351T-502E/ST finds application in various fields, including:

1. Audio equipment: Used for volume control and tone adjustment.
2. Industrial automation: Provides precise resistance control in control systems.
3. Test and measurement instruments: Enables calibration and fine-tuning of circuits.
4. Consumer electronics: Integrated into devices for user-adjustable settings.

Detailed and Complete Alternative Models

1. MCP4131: 8-bit digital potentiometer with a resistance range of 0Ω to 10kΩ.
2. MCP4161: 8-bit digital potentiometer with a resistance range of 0Ω to 100kΩ.
3. MCP4251: 8-bit dual-channel digital potentiometer with a resistance range of 0Ω to 50kΩ per channel.

These alternative models offer similar functionality but with different resistance ranges or channel configurations.

In conclusion, the MCP4351T-502E/ST is a digital potentiometer that provides precise resistance control in various electronic applications. Its compact size, low power consumption, and high resolution make it a versatile choice for designers seeking digital control over resistance values.