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 change the internal resistances dynamically via a microcontroller such as Arduino. Compared to traditional mechanical potentiometers, this digital potentiometer offers advantages like 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 do not have polarity restrictions towards each other.
2. The current through the terminals A, B, and W should not exceed ±1mA.
3. The voltages at the 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 sound control in audio devices
• LED-DC dimmer 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

Delivery scope:

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