MCP4262T-502E/UN

Product Overview

Category

The MCP4262T-502E/UN 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 MCP4262T-502E/UN is available in a small outline package (SOP) with 14 pins.

Essence

The essence of the MCP4262T-502E/UN lies in its ability to provide precise digital control over resistance values, making it suitable for various applications in electronic systems.

Packaging/Quantity

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

Specifications

• Resolution: 8 bits
• Number of Channels: Dual-channel
• Resistance Range: 0Ω to 5kΩ
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Interface: SPI (Serial Peripheral Interface)
• Non-volatile Memory: Yes

Detailed 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. WP - Write protect input
7. A - Terminal A of channel 1
8. W - Wiper terminal of channel 1
9. B - Terminal B of channel 1
10. VSS - Ground
11. A - Terminal A of channel 2
12. W - Wiper terminal of channel 2
13. B - Terminal B of channel 2
14. VDD - Power supply voltage

Functional Features

• Digital control of resistance values
• Non-volatile memory for storing settings
• SPI interface for easy integration with microcontrollers
• Low power consumption for energy-efficient designs
• Wide operating voltage range allows for versatile applications

Advantages and Disadvantages

Advantages

• Precise digital control over resistance values
• Compact package size for space-constrained designs
• High resolution and accuracy for demanding applications
• Non-volatile memory ensures settings are retained even when power is lost
• Low power consumption extends battery life in portable devices

Disadvantages

• Limited resistance range compared to traditional potentiometers
• Requires a microcontroller or external control circuitry for operation
• Higher cost compared to mechanical potentiometers

Working Principles

The MCP4262T-502E/UN utilizes a combination of digital-to-analog converters (DACs) and switches to control the resistance value. The digital control signals received through the SPI interface are converted into analog voltages, which are then used to adjust the resistance between the wiper terminal and the two end terminals. This digital control mechanism allows for precise and repeatable adjustments of resistance values.

Detailed Application Field Plans

The MCP4262T-502E/UN finds applications in various fields, including:

1. Audio Systems: Used for volume control and tone adjustment.
2. Industrial Automation: Enables precise calibration and control of sensors and actuators.
3. Test and Measurement Equipment: Provides programmable resistance for testing purposes.
4. Automotive Electronics: Used in electronic control units (ECUs) for calibration and fine-tuning.
5. Medical Devices: Allows for precise control of parameters in medical equipment.

Detailed and Complete Alternative Models

1. MCP4131-103E/P: Single-channel digital potentiometer with 10kΩ resistance range.
2. MCP4251-502E/MS: Dual-channel digital potentiometer with 5kΩ resistance range and I2C interface.
3. MCP4161-503E/P: Single-channel digital potentiometer with 50kΩ resistance range.

These alternative models offer similar functionality to the MCP4262T-502E/UN but may have different specifications or interfaces, providing flexibility for various design requirements.

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