MCP4651-103E/ST

Product Overview

Category

The MCP4651-103E/ST belongs to the category of digital potentiometers.

Use

It is primarily used as a programmable resistor in electronic circuits.

Characteristics

• Digital control interface
• Non-volatile memory for storing settings
• Low power consumption
• Wide resistance range
• High resolution

Package

The MCP4651-103E/ST comes in a small surface-mount package.

Essence

This product serves as a replacement for traditional mechanical potentiometers, offering greater flexibility and control.

Packaging/Quantity

The MCP4651-103E/ST is typically packaged in reels and is available in large quantities.

Specifications

• Resistance Range: 0Ω to 10kΩ
• Resolution: 8 bits (256 steps)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

The MCP4651-103E/ST has a total of 14 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. VSS - Ground
3. CS - Chip select
4. SCK - Serial clock input
5. SDI - Serial data input
6. SDO - Serial data output
7. LDAC - Load DAC input
8. A0 - Address bit 0
9. A1 - Address bit 1
10. A2 - Address bit 2
11. RAB - Terminal B of the resistor
12. RA - Terminal A of the resistor
13. RB - Terminal B of the resistor
14. RDY - Ready output

Functional Features

• Programmable resistance value
• Non-volatile memory for storing settings
• Ability to control resistance digitally
• SPI interface for easy integration with microcontrollers
• Low power consumption

Advantages and Disadvantages

Advantages

• Precise and accurate resistance control
• Compact size
• Easy integration into electronic circuits
• Non-volatile memory ensures settings are retained even when power is lost

Disadvantages

• Limited resolution compared to some other digital potentiometers
• Requires a microcontroller or external control circuitry for operation

Working Principles

The MCP4651-103E/ST operates by using a series of switches to create a variable resistance. The digital control interface allows the user to set the desired resistance value, which is then stored in non-volatile memory. The resistance can be adjusted by sending commands through the SPI interface.

Detailed Application Field Plans

The MCP4651-103E/ST finds applications in various fields, including:

1. Audio equipment: Used for volume control and tone adjustment.
2. Industrial automation: Provides programmable resistance for calibration and control purposes.
3. Test and measurement instruments: Enables precise resistance adjustments for accurate measurements.
4. Automotive electronics: Used in control systems and sensor calibration.

Detailed and Complete Alternative Models

1. MCP4131-103E/ST: Similar specifications but with a different package.
2. MCP4261-103E/ST: Higher resolution (10 bits) and wider resistance range.
3. MCP4531-103E/ST: Dual-channel digital potentiometer with similar characteristics.

(Note: These alternative models are provided as examples and may not cover all available options.)

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