TDK InvenSense CH101-00ABR

The CH101 is a miniature, ultra- low- power ultrasonic Time- of- Flight (ToF) range sensor. It is a system- in- package that integrates a PMUT (Piezoelectric Micromachined Ultrasonic Transducer) together with an ultra- low- power SoC (system on chip) in a miniature, refillable package. The SoC runs Chirp's advanced ultrasonic DSP algorithms and includes an integrated microcontroller that provides digital range readings via I²C. Complementing Chirp's long- range CH201 ultrasonic ToF sensor product, the CH101 provides accurate range measurements to targets at distances up to 1.2 m. Using ultrasonic measurements, the sensor works in any lighting condition, including full sunlight to complete darkness, and provides millimeter- accurate range measurements independent of the target's color and optical transparency. The sensor's Field- of- View (FoV) can be customized and enables simultaneous range measurements to multiple objects in the FoV. Many algorithms can further process the range information for a variety of usage cases in a wide range of applications. The CH101- 00ABR is a Pulse- Echo product intended for range finding and presence applications using a single sensor for transmit and receive of ultrasonic pulses. The CH101- 02ABR is a frequency matched Pitch- Catch product intended for applications using one sensor for transmit and a second sensor for receiving the frequency matched ultrasonic pulse.

• Fast, accurate range- finding
  • Operating range from 4 cm to 1.2 m
  • Sample rate up to 100 samples/sec
  • 1.0 mm RMS range noise at 30 cm range
  • Programmable modes optimized for medium and short-range sensing applications
  • Customizable field of view (FoV) up to 180°
  • Multi-object detection
  • Works in any lighting condition, including full sunlight to complete darkness
  • Insensitive to object color, detects optically transparent surfaces (glass, clear plastics, etc.)
• Easy to integrate
  • Single sensor for receive and transmit
  • Single 1.8V supply
  • I²C Fast-Mode compatible interface, data rates up to 400 kbps
  • Dedicated programmable range interrupt pin
  • Platform-independent software driver enables turnkey range-finding
• Miniature integrated module
  • 3.5 mm x 3.5 mm x 1.26 mm, 8-pin LGA package
  • Compatible with standard SMD reflow
  • Low-power SoC running advanced ultrasound firmware
  • Operating temperature range: -40°C to 85°C
• Ultra- low supply current
  • 1 sample/s:
    • 13 μA (10 cm max range)
    • 15 μA (1.0 m max range)
  • 30 samples/s:
    • 20 μA (10 cm max range)
    • 50 μA (1.0 m max range)

• Augmented and Virtual Reality
• Robotics
• Obstacle avoidance
• Mobile and Computing Devices
• Proximity/Presence sensing
• Ultra-low power remote presence-sensing nodes
• Home/Building automation