MCP4252-503E/UN

Product Overview

Category

The MCP4252-503E/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 MCP4252-503E/UN is available in a small outline integrated circuit (SOIC) package.

Essence

This digital potentiometer serves as a replacement for traditional mechanical potentiometers, providing precise and reliable resistance control in various applications.

Packaging/Quantity

The MCP4252-503E/UN is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 8 bits
• Number of Channels: Dual-channel
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Interface: SPI (Serial Peripheral Interface)
• Tolerance: ±20%

Detailed Pin Configuration

The MCP4252-503E/UN has a total of 14 pins, which are assigned 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. GND - Ground
7. A - Terminal A of channel 1
8. W - Wiper terminal of channel 1
9. B - Terminal B of channel 1
10. HIZ - High impedance state control
11. B - Terminal B of channel 2
12. W - Wiper terminal of channel 2
13. A - Terminal A of channel 2
14. VSS - Negative power supply voltage

Functional Features

• Non-volatile memory for storing resistance settings
• Ability to digitally adjust resistance values in real-time
• Low temperature coefficient ensures stable performance across varying temperatures
• High endurance and reliability
• SPI interface allows easy integration with microcontrollers and other digital systems

Advantages and Disadvantages

Advantages

• Precise and accurate resistance control
• Compact size saves board space
• Eliminates mechanical wear and tear associated with traditional potentiometers
• Non-volatile memory retains settings even when power is disconnected
• Wide operating voltage range allows compatibility with various systems

Disadvantages

• Limited resolution compared to higher-bit digital potentiometers
• Tolerance of ±20% may not be suitable for applications requiring high precision

Working Principles

The MCP4252-503E/UN utilizes a combination of resistive elements and electronic switches to achieve digital resistance control. The resistance value is adjusted by changing the position of the wiper terminal along the resistive element, which is controlled by the digital input signals.

Detailed Application Field Plans

The MCP4252-503E/UN finds application in various fields, including:

1. Audio equipment: Volume control, tone adjustment
2. Industrial automation: Calibration, feedback control
3. Test and measurement instruments: Signal conditioning, calibration
4. Automotive electronics: Climate control, lighting control
5. Consumer electronics: Display brightness control, user interface adjustment

Detailed and Complete Alternative Models

1. MCP401X: Single-channel digital potentiometer with lower resolution
2. MCP426X: Dual-channel digital potentiometer with higher resolution
3. MAX548X: Digital potentiometer with integrated EEPROM for additional features
4. AD840X: Digital potentiometer with logarithmic taper for audio applications
5. X9CXXX: Digital potentiometer series with different resistance ranges and package options

These alternative models offer different features, specifications, and price points to cater to diverse application requirements.

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