MCP4261T-502E/ST

Product Overview

Category

The MCP4261T-502E/ST belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and systems that require variable resistance or digital control of analog signals.

Characteristics

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

Package

The MCP4261T-502E/ST is available in a small surface mount package.

Essence

The essence of the MCP4261T-502E/ST lies in its ability to provide precise and programmable resistance values, making it suitable for various applications requiring analog signal control.

Packaging/Quantity

The MCP4261T-502E/ST is typically packaged in reels and is available in large quantities.

Specifications

• Resolution: 8 bits
• Number of Channels: Dual
• Operating Voltage Range: 2.7V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Temperature Range: -40°C to +125°C
• Resistance Tolerance: ±20%
• End-to-End Resistance Range: 5kΩ

Detailed Pin Configuration

The MCP4261T-502E/ST has a total of 14 pins. The pin configuration is 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. H - Terminal H of channel 0
11. A - Terminal A of channel 1
12. B - Terminal B of channel 1
13. W - Wiper terminal of channel 1
14. H - Terminal H of channel 1

Functional Features

• Non-volatile memory allows for the retention of resistance settings even when power is removed.
• SPI interface enables easy digital control and communication with microcontrollers or other devices.
• High resolution provides precise control over resistance values.
• Wide operating voltage range allows for compatibility with various power supply systems.
• Low power consumption ensures energy efficiency in applications.

Advantages and Disadvantages

Advantages

• Precise and programmable resistance control
• Non-volatile memory for retaining settings
• Small package size for space-constrained designs
• Wide operating voltage range for versatility
• Low power consumption for energy efficiency

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers
• Resistance tolerance of ±20% may not be suitable for highly accurate applications

Working Principles

The MCP4261T-502E/ST operates by digitally controlling the resistance between its terminals. It uses non-volatile memory to store resistance settings, allowing for the retention of values even when power is removed. The device communicates with a microcontroller or other devices through the SPI interface, enabling precise and programmable resistance control.

Detailed Application Field Plans

The MCP4261T-502E/ST finds application in various fields, including:

1. Audio equipment: Volume control, tone adjustment
2. Industrial automation: Analog signal processing, calibration
3. Test and measurement instruments: Variable resistance simulation, signal conditioning
4. Automotive electronics: Sensor calibration, control systems
5. Consumer electronics: Display brightness control, user interface adjustment

Detailed and Complete Alternative Models

1. MCP4131-103E/P - 10kΩ digital potentiometer with 8-bit resolution
2. MCP4251-502E/ST - Dual-channel digital potentiometer with 5kΩ resistance and 8-bit resolution
3. MCP4161T-503E/ST - Single-channel digital potentiometer with 50kΩ resistance and 8-bit resolution

These alternative models offer similar functionality and can be considered as alternatives to the MCP4261T-502E/ST based on specific application requirements.

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