Home Sensors Specialty sensors Ultrasonic sensor AFEs

Sensors

Ultrasonic sensor AFEs

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

Ultrasonic sound waves are vibrations at a frequency above the range of human hearing (>20kHz) that can travel through a variety of mediums (air or fluid). 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.

accurate detection for ultrasonic sensing

Frequency

Select drive transducers from 31.25kHz to 4MHz to accurately detect objects with a resolution of 1mm – 1cm at a range of 10cm – 10m, and support transducers from 1333kHz to 2.5 MHz for flow measurement

system flexibility for ultrasonic sensing applications

Device type

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

Integrated solutions for ultrasonic sensing

Features

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

Product comparison

PGA460

TUSS4440

TUSS4470

TDC1000

MSP430™ ultrasonic sensing MCUs

Frequency of operation

30kHz – 80kHz

180kHz – 480kHz

40kHz - 400kHz
40kHz - 1MHz
31.25kHz - 4MHz
133kHz-2.5MHz
Device type
Integrated
Analog front-end (AFE)
Analog front-end (AFE)
Analog front-end (AFE)
Integrated AFE with MSP430™ MCU
Voltage range
Up to 30V
Up to 40V
Up to 30V
2.7V - 5.5V
2.2V - 3.6V
Features
Transformer drive
Transformer drive
Direct drive or pre-drive mode
Direct drive
Direct drive
Gain type
Time-varying gain (TVG)
Logarithmic
Logarithmic
Linear
Linear
Automotive qualified - - TDC1000-Q1
-
Applications

Ultrasonic park assist

Service robots

Position sensor

Level sensing

Position sensor

Level sensing

Level sensing

Fluid concentration measurement

Flow metering

Level sensing

Distance measurement

Ultrasonic design resources

Learn more about the fundamentals of ultrasonic sensing and other design considerations.

Read about the fundamentals of ultrasonic sensing.

Receive fast and reliable technical support from our engineers throughout every step of your ultrasonic design.

Read our infographic to quickly understand the pros and cons of each technology we offer including ultrasonic.