Ultrasonic sensor AFEs

Ultrasonic sensing solutions for flow, level, proximity, position, imaging and distance measurement

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Ultrasonic sound waves are vibrations at a frequency above the range of human hearing (>20 kHz) that can travel through a variety of mediums (air or fluid). These techniques, like time of flight or Doppler, are used to measure flow, detect objects, perform concentration analysis and measure distances without making physical contact. Ultrasonic sensors can be used to detect a wide variety of materials regardless of shape, transparency or color.

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Select drive transducers from 31.25 kHz to 4 MHz to accurately detect objects with a resolution of 1 mm to 1 cm and support transducers for flow measurement.

Device type

Shrink your design with fully-programmable, integrated and analog front-end AFE solutions that allow for system flexibility.


Achieve transducer current and voltage requirements with direct drive and transformer drive solutions and impedance matched drivers for accurate flow measurement.

Design & development resources

Reference design
Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design

TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. (...)

Reference design
Ultrasonic proximity-sensing module (PSM) reference design
This reference design is a small-form factor solution showcasing double-sided PCB spacing and minimum supporting component requirements for the PGA460 ultrasonic sensor signal conditioner. This module operates in a mono-static mode for single sensor transmit and receive operation to enable object (...)
Reference design
Automotive Ultrasonic Sensor Interface IC for Park Assist or Blind Spot Detection Systems

The TIDA-00151 reference design contains a PGA450-Q1 which is a system on Chip (SOC) sensor interface IC for automotive Ultrasonic sensors. It provides all signal conditioning and processing for the transducer echo signals and for calculating the distance between the transducer and objects. MCU and (...)

Reference designs related to Ultrasonic sensor AFEs

Use our reference design selection tool to find designs that best match your application and parameters.

Technical resources

Video series
Video series
Build your expertise with TI Precision Labs - Ultrasonic Sensing
This modular, on-demand curriculum includes hands-on training videos that combine theory and applied exercises to quickly bring you up to speed on ultrasonic sensing design by covering the fundamentals of ultrasonic sensing.
Application note
Application note
Ultrasonic Sensing Basics (Rev. D)
Read about the fundamentals of ultrasonic sensing through our ultrasonic sensing basics application note.
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Application note
Application note
How to select the right proximity sensor technology
Read our proximity sensing infographic to quickly understand the pros and cons of each technology we offer including ultrasonic.
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