Chirp’s MEMS based ultrasonic technology leverages a Time-of-Flight (ToF) range sensor with a power-efficient digital signal processor (DSP) ASIC in a 3.5 mm x 3.5 mm package. The sensor handles a variety of ultrasonic signal-processing functions and algorithms, enabling customers flexible industrial design options for a broad range of use-case scenarios, including range-finding, presence and proximity sensing, object-detection and avoidance, and position-tracking.
Complementing Chirp’s long-range CH201 ultrasonic ToF sensor product, the CH101 provides accurate range measurements to targets at distances up to 1.2m. Using ultrasonic measurements, the sensor works in any lighting conditions, including full sunlight to complete darkness, and provides millimeter-accurate range measurements independent of the target’s color and optical transparency. The sensor’s wide Field-of-View (FoV) can be customized and enables simultaneous range measurements to multiple objects in the FoV.
| Product | Operation | Package Size (mm) | Range (m) | Current Consumption (1sample/s, 1m Range) | Interface | Comments | Purchase |
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 CH101-00ABR | Pulse-Echo | 3.5 × 3.5 × 1.26, 8-pin LGA | Up to 1.2 | 15uA | I²C | Field-of-View (FoV): Configurable Up to 180° | |
CH101-02ABR | Pitch-Catch | 3.5 × 3.5 × 1.26, 8-pin LGA | Up to 1.2 | 15uA | I²C | Field-of-View (FoV): Configurable Up to 180° | |
 MOD_CH101-03-02 | Pulse-Echo / Pitch-Catch | 8.0 × 8.0 × 5.08 8-pin ZIF FFC/FPC connector | Up to 1.2 | 15uA | I²C | Module with Field-of-View (FoV): 45° Particle Ingress Filter (IP5) |
CH101 Applications |
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Social Distancing | Robotics | Smart Home | AR/VR Gaming |
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Ultra-low power and High Accuracy Ultrasonic ToF sensors accurately measure proximity breaches and provide warnings before crossing social distancing guidelines | Ultrasonic ToF sensors enable Cliff detection, material composition identification, and obstacle avoidance | Always-on ultra-low power Ultrasonic ToF sensors enable the battery powered smart home | Compact, low power ultrasonic ToF sensors enable user experiences in gaming under any lighting conditions |
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Additional Social Distancing Resources: | ||||
AH-10133-045045 | AH-10100-180180 | AH-10126-065030 | AH-10113-160035 & 719 |
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Symmetrical 45° FoV horn to use with the CH101. | Symmetrical 180° FoV horn to use with the CH101. | Asymmetrical 65° × 30° FoV horn to use with the CH101. | Asymmetrical 160° × 35° FoV horn with a spacer and PIF to use with the CH101. |
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Datasheet |
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App Notes |
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Firmware Support |
