40kHz Ultrasonic Receiver AFE

Triad Semiconductor’s TS8000 is a complete ultrasonic receiver analog front end. Working with an ultrasonic transducer the TS8000 converts ultrasonic sound waves into a digital data representation of the ultrasonic pulses striking the transducer. The TS8000 provides digitally configurable noise filtering, gain amplification, and carrier data slicing of the weak ultrasonic input signals. The TS8000 is configured by a two-wire bus that shares the data pin of the device.

The TS8000 is available in a tiny 16-bump wafer level chip scale package (WLCSP, 1.66mm x 1.66mm, 0.4mm pitch). The device operates from a 3.3V nominal supply input and is specified over a 0C to +85C operating temperature range.

Application Notes

TS8000 WLCSP 16 bump 3D package drawing
  • WLCSP 1.66mm x 1.66mm x 0.8mm package height


  • Complete ultrasonic receiver AFE on a single IC
  • Small package size simplifies industrial design for IoT and tracked object
  • Single 3.3V digital supply with onboard LDO for clean analog power
  • Two-wire control bus for programming, calibration and mode selection
  • Programmable threshold data slicer for extracting ultrasonic carrier
  • Programmable high-gain amplification of weak ultrasonic signals
  • Receive 40kHz ultrasonic pulses


  • Ultrasonic Range Finder
  • Ultrasonic Time of Flight
  • Robotics
  • Robotic Vacuum Cleaners and Mops
  • Object and Proximity Detection
  • Liquid Level Measurement
Liquid Level Measurement

Ultrasonic liquid level measurement in very small physical spaces can be easily accomplished with the TS8000.

Distance Measurement

The TS8000’s small size (1.66mm per side) enables adding distance measurement to small consumer and IoT applications.

Robotics Tracking

Multiple TS8000s can be used to triangulate location adding tracking and object avoidance to drones and robots.

Occupancy Sensor

The TS8000 can be used to detect room entry, proximity to light switches and occupancy for smart building automation applications.

Circuit Diagram

Circuit Diagram

Application Diagram

Application Diagram

Evaluation Boards

Triad Semiconductor’s TS8000-CM combines Triad’s TS8000 Ultrasonic Receiver IC with an ultrasonic transducer and supporting discrete components onto a PCB module with castellated pads. The TS8000-CM supports 40kHz Piezo Transducers and MEMs microphones. The module has a 4-pin flex cable connector that connects DVDD, Ground, Clock and Data to the module. The module comes populated […]
PINGUS TS8000 40kHz Ultrasonic Transmit and Receive Eval Board
TS8000 40kHz Ultrasonic Receiver Complete 40kHz Transmit and Receive Circuit 40kHz Piezo Ultrasonic Transmitter 40kHz Piezo Ultrasonic Receiver Wideband MEMs Microphone Receiver 100mil center headers for easy prototyping Arduino library for calibration and configuration

Related Products

Triad Part NumberDescription
TS8003Photoelectric Sensor with IO-Link
TS8015Capacitive Sensor with IO-Link
TS8017Ultrasonic Sensor with IO-Link
TS8013Low Frequency Transceiver