MCP41HV31-103E/ST

Product Overview

Category

The MCP41HV31-103E/ST belongs to the category of digital potentiometers.

Use

It is primarily used for electronic circuitry and systems that require adjustable resistance values.

Characteristics

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

Package

The MCP41HV31-103E/ST is available in a small surface mount package.

Essence

This digital potentiometer offers precise and programmable resistance adjustment, making it suitable for various applications.

Packaging/Quantity

The MCP41HV31-103E/ST is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Resistance Range: 10kΩ
• Resolution: 256 taps
• Temperature Coefficient: ±35 ppm/°C
• Interface: SPI (Serial Peripheral Interface)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MCP41HV31-103E/ST has the following 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. GND - Ground
7. A - Terminal A of the potentiometer
8. B - Terminal B of the potentiometer
9. WP - Write protect input

Functional Features

• Programmable resistance adjustment
• Non-volatile memory for storing settings
• High resolution for precise control
• Wide operating voltage range for compatibility
• Low temperature coefficient for stability

Advantages and Disadvantages

Advantages

• Precise resistance adjustment
• Non-volatile memory for retaining settings
• Wide operating voltage range allows for versatile applications
• Small package size for space-constrained designs

Disadvantages

• Limited resistance range (10kΩ)
• Requires SPI interface for control

Working Principles

The MCP41HV31-103E/ST operates by digitally controlling the resistance between terminals A and B. It utilizes a non-volatile memory to store resistance settings, allowing for retention of values even when power is removed. The device communicates with a microcontroller or other digital circuitry through the SPI interface, enabling precise resistance adjustments.

Detailed Application Field Plans

The MCP41HV31-103E/ST finds applications in various fields, including:

1. Audio equipment: Volume control, tone adjustment
2. Industrial automation: Calibration, signal conditioning
3. Test and measurement instruments: Fine-tuning resistance values
4. Automotive electronics: Sensor calibration, control systems
5. Medical devices: Precision control of electrical signals

Detailed and Complete Alternative Models

1. MCP4131-103E/ST: Similar specifications, 10kΩ resistance range
2. MCP4017T-103E/ST: Lower resolution, 10kΩ resistance range
3. MCP42HV31-103E/ST: Dual-channel version, 10kΩ resistance range

These alternative models offer similar functionality and can be considered as substitutes for the MCP41HV31-103E/ST.

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