OPT3101 ToF-Based Long-Range Proximity and Distance Sensor AFE

1 Features

• Long-Range Distance Measurement, Obstacle Detection and Avoidance
• Flexibility to Customize Design With a Wide Variety of Photodiodes and Emitters
• Sample Rate up to 4 kHz
• 16-Bit Distance Output at 15-m Unambiguous Range
• De-Aliasing to Extend the Distance Range
• Supports 3 Transmitter Channels for Multi-Zone Operation
• Excellent Ambient and Sunlight Rejection
• 200-nA Full-Scale Signal Current
• 88-dB Signal Phase Dynamic Range at 1 kHz
• Supports DC Ambient up to 200 µA, 60-dB Rejection for Ambient at 1 kHz
• Distance Measurement Independent of Object Reflectivity
• Adaptive HDR to Save Power and Increase the Dynamic Range
• Configurable Event Detection and Interrupt Output Mechanism
• I²C Interface for Control and Data
• Integrated Illumination Driver With Programmable Current Control up to 173 mA
• Integrated Temperature Sensor for Calibration
• Single 3.3-V or 1.8-V and 3.3-V Supply Operation
• Operating Ambient Temperature: –40 to 85°C

Application Block Diagram

2 Applications

• Precise Long-Range Distance Measurement
  • Background Suppression and Accurate Object Counting in High-Speed Conveyor Belt Systems
  • Precise Displacement Sensing in Factory Automation
  • Non-Contact Distance and/or Level Measurement in Harsh Environments (High-Temperature or Hazardous Conditions)
• Obstacle Detection and Avoidance
  • Precise Distance Measurement for Drone Landing and Navigation
  • Cliff and Edge Detection in Vacuum Cleaners (No False Triggers From Dark Carpets)
  • Perimeter Scan in Automatic Guided Vehicle Like Lawnmowers, Robots
  • Obstruction Sensing in Applications Such as Smoke Detectors, Emergency Exits