MCP4261-104E/ST

Product Overview

Category

The MCP4261-104E/ST belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and systems where variable resistance is required.

Characteristics

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

Package

The MCP4261-104E/ST comes in a small outline package (SOIC) with 14 pins.

Essence

The essence of the MCP4261-104E/ST lies in its ability to provide precise and programmable resistance values in various electronic applications.

Packaging/Quantity

This product is typically packaged in reels, containing a quantity of 250 units per reel.

Specifications

• Resolution: 8 bits
• Number of Channels: Dual-channel
• Resistance Range: 0 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 MCP4261-104E/ST has 14 pins, which are configured as follows:

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 0
8. B - Terminal B of channel 0
9. W - Wiper terminal of channel 0
10. GND - Ground
11. VREF - Reference voltage input
12. B - Terminal B of channel 1
13. A - Terminal A of channel 1
14. W - Wiper terminal of channel 1

Functional Features

• Non-volatile memory allows the MCP4261-104E/ST to retain its settings even when power is removed.
• The digital control interface enables easy and precise adjustment of resistance values.
• Low power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range ensures compatibility with various systems.
• High resolution provides fine-grained control over resistance values.

Advantages and Disadvantages

Advantages

• Precise and programmable resistance values
• Easy digital control interface
• Non-volatile memory for retaining settings
• Low power consumption
• Wide operating voltage range
• High resolution

Disadvantages

• Limited resistance range (0 to 10kΩ)
• Requires an SPI interface for communication

Working Principles

The MCP4261-104E/ST operates by digitally controlling the resistance between its terminal A, terminal B, and wiper terminal. This is achieved through the use of a non-volatile memory that stores the resistance value. The digital control interface, connected via SPI, allows the user to adjust the resistance value with precision.

Detailed Application Field Plans

The MCP4261-104E/ST finds applications in various fields, including:

1. Audio equipment: It can be used for volume control in audio amplifiers and mixers.
2. Industrial automation: It can be employed for calibration and adjustment of sensors and actuators.
3. Test and measurement instruments: It can be utilized for fine-tuning signal generators and attenuators.
4. Communication systems: It can be integrated into RF circuits for impedance matching and gain control.
5. Automotive electronics: It can be incorporated into automotive systems for control and calibration purposes.

Detailed and Complete Alternative Models

1. MCP4131-103E/P: Single-channel digital potentiometer with similar specifications.
2. MCP4251-104E/MS: Dual-channel digital potentiometer with extended temperature range.
3. MCP4161-503E/SL: Single-channel digital potentiometer with higher resolution.

These alternative models offer similar functionality and can be considered as substitutes for the MCP4261-104E/ST in specific applications.

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