MCP4261-103E/P

Product Overview

Category

The MCP4261-103E/P belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and systems that require variable resistance or voltage control.

Characteristics

• Digital control interface
• Non-volatile memory
• Low power consumption
• Wide operating voltage range
• High resolution

Package

The MCP4261-103E/P comes in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of the MCP4261-103E/P lies in its ability to provide precise and programmable resistance values, allowing for flexible control in various electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 8 bits
• Number of Channels: Dual-channel
• Resistance Range: 0Ω to 10kΩ
• Operating Voltage Range: 2.7V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MCP4261-103E/P has a total of 14 pins, which are as follows:

1. VDD - Power supply voltage input
2. VSS - Ground reference
3. CS - Chip select input
4. SCK - Serial clock input
5. SDI - Serial data input
6. SDO - Serial data output
7. RST - Reset input
8. A - Terminal A of Channel 1
9. B - Terminal B of Channel 1
10. W - Wiper terminal of Channel 1
11. H - Terminal A of Channel 2
12. G - Terminal B of Channel 2
13. W - Wiper terminal of Channel 2
14. VREF - Reference voltage input

Functional Features

• Non-volatile memory allows for the preservation of settings during power-off cycles.
• SPI interface enables easy integration with microcontrollers and other digital systems.
• High resolution provides precise control over resistance values.
• Wide operating voltage range ensures compatibility with various power supply configurations.
• Low power consumption makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Programmable resistance values offer flexibility in circuit design.
• Non-volatile memory preserves settings, eliminating the need for recalibration.
• Small form factor package saves space in compact electronic devices.
• Wide operating voltage range enhances compatibility with different systems.

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers.
• Lack of parallel interface options may restrict compatibility with certain systems.

Working Principles

The MCP4261-103E/P operates by digitally controlling the resistance between its terminals. It utilizes a combination of resistive elements and switches to achieve variable resistance values. The digital control interface, coupled with non-volatile memory, allows for precise and programmable resistance adjustments.

Detailed Application Field Plans

The MCP4261-103E/P finds application in various fields, including:

1. Audio Equipment: Volume control circuits in audio amplifiers and mixers.
2. Industrial Automation: Precision control of motor speed and position.
3. Test and Measurement: Calibration and adjustment of test equipment.
4. Automotive Electronics: Fine-tuning of sensor circuits and control systems.
5. Consumer Electronics: Adjustable brightness control in displays and backlighting.

Detailed and Complete Alternative Models

1. MCP4131-103E/P: Similar specifications but with a single-channel configuration.
2. MCP4251-103E/P: Dual-channel digital potentiometer with higher resolution (10 bits).
3. MCP4161-103E/P: Single-channel digital potentiometer with non-volatile memory.

These alternative models offer different features and specifications, allowing for greater flexibility in selecting the most suitable digital potentiometer for specific applications.

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