TI OPT3101RHFR

The OPT3101 device is a high-speed, high-resolution AFE suitable for time-of-flight-based continuous-wave proximity sensing and ranging. The device integrates a complete depth processing pipeline, including an ADC, a timing sequencer, and a digital processing engine. The device also features a built-in illumination driver to cover most target challenges. With a high ambient rejection ratio, the device can support very high ambient conditions, including full sunlight up to 130 klx. The timing sequencer is highly configurable, enabling a trade-off between power consumption and performance for specific applications. The device provides depth data including phase, amplitude, and ambient measurements. The calibration subsystem supports phase data calibration to correct inaccuracies caused by temperature and crosstalk.

• Long-range distance measurement, obstacle detection and avoidance
• Flexible custom design with multiple photodiodes and emitters
• Sampling rate up to 4kHz
• 16-bit range output within 15m unambiguous range
• Extended distance range via dealiasing technology
• Supports 3 emitter channels for multi-zone operation
• Excellent ambient light and sunlight rejection performance
• 200nA full-scale signal current
• 88dB signal phase dynamic range at 1kHz
• Supports up to 200μA DC ambient with 60dB ambient rejection (at 1kHz)
• Range measurement independent of object reflectivity
• Adaptive HDR for power saving and improved dynamic range
• Configurable event detection and interrupt output mechanism
• Control and data transfer via I²C interface
• Integrated illumination driver with programmable current control up to 173mA
• Integrated temperature sensor for calibration
• Powered by single 3.3V or 1.8V and 3.3V supply
• Operating temperature: -40℃ to 85℃

• Background suppression and accurate object counting for high-speed conveyor systems
• Precise displacement detection in factory automation
• Non-contact distance and/or level measurement in harsh environments (high temperature or hazardous conditions)
• Precise ranging for drone landing and navigation
• Stair and edge detection in robotic vacuum cleaners (no false triggers due to dark carpet color)
• Perimeter scanning in autonomous guided vehicles (e.g., lawnmowers and robots)
• Obstacle sensing in smoke detectors, emergency exits, and similar applications