MCP4461-502E/ST

Product Overview

Category

The MCP4461-502E/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: The MCP4461-502E/ST allows for precise and accurate resistance adjustments through digital signals.
• Non-volatile memory: It retains the resistance setting even when power is removed, ensuring consistent performance upon power-up.
• Low power consumption: The device operates with low power requirements, making it suitable for battery-powered applications.
• Wide resistance range: The MCP4461-502E/ST offers a wide range of resistance values, allowing for versatile use in various circuit designs.

Package

The MCP4461-502E/ST is available in a small surface-mount package, making it suitable for compact electronic devices.

Essence

The essence of the MCP4461-502E/ST lies in its ability to provide a digitally controlled resistance value, replacing traditional mechanical potentiometers.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 8 bits (256 steps)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The MCP4461-502E/ST has the following pin configuration:

1. VDD: Power supply voltage input
2. SDA: Serial data line for I2C communication
3. SCL: Serial clock line for I2C communication
4. A0: Address selection bit 0
5. A1: Address selection bit 1
6. WP: Write-protect pin
7. VSS: Ground

Functional Features

• Digital control of resistance value through I2C interface.
• Non-volatile memory ensures retention of resistance setting.
• Low power consumption for energy-efficient operation.
• Wide resistance range allows for versatile use in various applications.
• Compact surface-mount package for space-constrained designs.

Advantages and Disadvantages

Advantages

• Precise and accurate resistance adjustment.
• Eliminates the need for mechanical potentiometers.
• Retains resistance setting even when power is removed.
• Suitable for battery-powered applications.
• Offers a wide range of resistance values.

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers.
• Requires I2C communication interface for control.

Working Principles

The MCP4461-502E/ST operates by digitally controlling the resistance value using an internal network of resistors. The desired resistance value is set through the I2C interface, which adjusts the wiper position within the resistor network. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The MCP4461-502E/ST finds applications in various fields, including:

1. Audio Equipment: It can be used for volume control in audio amplifiers and mixers.
2. Industrial Control Systems: It enables precise resistance adjustments in industrial automation systems.
3. Test and Measurement Instruments: It provides variable resistance for calibration and testing purposes.
4. Consumer Electronics: It can be utilized in devices such as televisions, gaming consoles, and home appliances for control purposes.

Detailed and Complete Alternative Models

1. MCP401X: Similar digital potentiometer series with lower resolution (6 bits).
2. MCP425X: Higher-resolution digital potentiometer series with 10 bits.
3. MAX548X: Alternative digital potentiometer series from Maxim Integrated.

These alternative models offer different resolution options and may have additional features tailored to specific applications.

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