Programmable Resistor 8 Decade 0.1R – 9999999R Resistance Board Module

Specifications

• Type: Programmable Resistor Module
• Number of Decades: 8 Decades
• Resistance Range: 0.1Ω to 9,999,999Ω (7-digit resolution)
• Adjustment Method: Digital/Programmable
• Input Control: Serial, typically I2C, SPI, or other communication protocols depending on the variant
• Output Range: Programmable resistance between 0.1Ω and 9,999,999Ω

Resistance Features:

• Decade Values: Each decade provides resistance values that range from:
  • 0.1Ω (1st decade)
  • 1Ω (2nd decade)
  • 10Ω (3rd decade)
  • 100Ω (4th decade)
  • 1kΩ (5th decade)
  • 10kΩ (6th decade)
  • 100kΩ (7th decade)
  • 1MΩ (8th decade)
• Accuracy: Typical accuracy is ±0.1% to ±1%, depending on the selected resistance value and operating conditions
• Resolution: 0.1Ω minimum step size, programmable across the range

Control and Communication:

• Control Method:
  • Programmable through a microcontroller or computer via a communication interface.
  • Common communication protocols:
    • I2C
    • SPI
    • UART
  • Some versions may support USB or serial control interfaces.
• Programming Software: Can be configured using software provided by the manufacturer or customized programming (C, Python, etc.) for integration into larger systems.

Power Supply:

• Operating Voltage: Typically 3.3V to 5V DC, may vary by model.
• Power Consumption: Low power, typically in the range of milliwatts depending on the load and communication activity.

Environmental Specifications:

• Operating Temperature Range: 0°C to 70°C (typical)
• Storage Temperature Range: -40°C to 85°C
• Humidity Tolerance: Up to 95% RH, non-condensing

Electrical Specifications:

• Maximum Current Capacity: Typically limited to 0.1A to 0.5A, depending on resistance value and model variant
• Voltage Rating: Typically rated up to 24V DC for normal operation
• ESD Protection: Provided on I/O pins to protect against electrostatic discharge

Mechanical Specifications:

• PCB Dimensions: Approx. 70mm x 50mm (typical, can vary)
• Mounting Holes: Standard mounting holes for securing the module
• Connectors:
  • 2-pin or 3-pin header for power and ground
  • I/O pins for communication interfaces (e.g., I2C, SPI, UART)
  • Resistor output pins

Features:

• Programmability: The resistor value is fully programmable across the entire range using digital controls, allowing for precise resistance tuning in real-time.
• Decade Switching: Internal switching mechanisms adjust the resistance in predefined steps for each decade.
• Noise Filtering: Low-noise operation for high-precision applications, ensuring minimal interference in critical systems.
• Overload Protection: Integrated protection circuits to prevent damage in case of overcurrent or excessive voltage input.

Applications:

• Calibration Systems: For use in calibrating or simulating resistance in test equipment.
• Analog Circuit Design: Used in feedback loops, sensor simulation, and resistance-dependent analog circuits.
• Educational Tools: Great for teaching electrical engineering and circuit design concepts.
• Automated Testing: Automated test environments that require dynamic resistance changes.
• R&D and Prototyping: Used for research and development in various electronics fields requiring variable resistance adjustments.