MCP42100 Dual Digital SPI Potentiometer Module 100kOhm

The MCP42100 Dual Digital SPI Potentiometer Module is a highly flexible and reliable tool for your projects. It is a mixed-signal IC that can dynamically change internal resistances through a microcontroller like Arduino. Compared to traditional mechanical potentiometers, this digital potentiometer offers advantages such as program control, small size, and high reliability. It is ideal for applications such as LED-DC dimming, linear stable voltage sources, oscillators, low-pass filters, and differential amplifiers.

Note:

1. The resistance terminals A, B, and W have no polarity restrictions to each other.
2. The current through terminals A, B, and W should not exceed ±1mA.
3. The voltages at terminals A, B, and W should be within the range of 0 - VCC.

Features:

• Low power consumption and small dimensions
• Compatible with 3.3V or 5.0V operating voltage
• Each potentiometer has 256 steps with a resistance of 100KΩ
• Equipped with SPI interface for easy communication

Application Examples:

• Volume or tone control in audio equipment
• LED-DC dimmers and contrast control
• Programmable voltage sources, filters, and differential amplifiers

Documentation:  

• DFRobot Wiki

Technical Specifications:

• Manufacturer: DFRobot 
• Manufacturer SKU: DFR0520
• Operating Voltage: 2.7–5.5V DC
• Static Operating Current: < 1 μA
• Potentiometer Value: 100 KΩ
• Resolution: 8 Bit, 256 steps for each potentiometer
• Number of Potentiometers: 2
• Interface: SPI
• Operating Temperature: -40℃–85℃
• Dimensions: 20 x 18 x 12mm
• Weight: 13.3g

Package Contents:

• 1x MCP42100 Dual Digital SPI Potentiometer Module 100kOhm
• 1x 30cm 5pin Male-Male Dupont Cable