Voltage And Current Sensor Module – MAX471 3A

The Voltage and Current Sensor Module based on the MAX471 is designed for DC voltage and current measurement in embedded and Arduino-based systems. It supports current sensing up to 3A with a 1V/A output ratio and 2% typical accuracy. The onboard resistive voltage divider scales input voltage by a factor of 5, allowing safe measurement up to 25V when used with 5V ADC systems. With 10-bit ADC resolution, it enables precise monitoring of power consumption. Ideal for power analysis, battery monitoring, and load testing applications.

• MAX471 High-Side Current Sensor IC
  
• DC Current Measurement 0–3A
  
• 1V/A Analog Output Ratio
  
• Typical Accuracy ±2%
  
• Voltage Divider Ratio 1:5
  
• Input Voltage Up To 25V (5V ADC)
  
• Compatible With 3.3V And 5V Systems
  
• 10-bit ADC Resolution Support
  
• High-Side Load Monitoring
  
• Suitable For Arduino And MCU Platforms
  
• Compact PCB Design
  
• Screw Terminal Input Connectors

• Current Sensing IC: MAX471
  
• Current Measurement Range: 0–3A DC
  
• Current Accuracy: ±2%
  
• Current Output Ratio: 1V/A
  
• Voltage Divider Ratio: 1:5
  
• Input Voltage Range (5V ADC): 3–25V DC
  
• Input Voltage Range (3.3V ADC): 3–16.5V DC
  
• ADC Resolution Reference: 10-bit (0–5V)
  
• Minimum Detectable Input Voltage: 0.02445V
  
• Output Type: Analog Voltage Output
  
• Operating Supply Voltage: 5V DC
  
• Mounting Type: PCB Module

• MAX471 Datasheet
• MAX471 Symbol and Footprint

• MAX471 Current Sensor | Cheap Electronics