Ultrasound Products

Microchip

Medical Ultrasound Imaging System


The ultrasound image is formed by applying the electrical pulses to the ultrasound transducers. The transducers convert the electrical pulses to ultrasound waves. By applying the acoustic coupling agents such as ultrasound gel between the ultrasound transducer probe surface and the skin, the sound waves propagate into the tissue beneath and to the parts that need to be imaged. When the sound waves hit a boundary between tissues, part of the sound waves get reflected back to the transducer while some sound waves propagate further until they hit another tissue boundary and get reflected. By receiving and processing the echoes, the 2D image of the internal organs and structures can be formed.

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Medical ultrasound imaging systems provide a non-invasive way to diagnose a variety of diseases and conditions without the use of radiation. In the past decade, the medical ultrasound imaging systems had been evolved from the traditional large size trolley-based system to more light-weight & portable system. The new light-weight and portable systems are often battery-powered and they are often used in the Point-of-Care and EMED application. The trend in system miniaturization drives the need of low-power and highly integrated ultrasound analog front-end ICs.

Microchip Technology offers the complete solution in the analog front-end circuit for medical ultrasound. Microchip’s medical ultrasound components include: High Voltage Analog Switch, Integrated High Voltage Transmitter, High voltage FET and FET Array, FET Driver, Arbitrary Waveform Generator, and T/R Switch.


Analog Multiplexers/Switchers 

Microchip's family of high-voltage analog switches/multiplexers, pulsers, high-speed MOSFET drivers and discrete high voltage MOSFETs offer the best price/performance ratio available today for ultrasound applications. The feature rich devices offer high-channel density in small packages. Integrated features such as bleed resistors in the ICs further reduce PCB density and overall cost by eliminating an external component


Beamformer Source Drivers

Microchip's pulsed current waveform generator and push-pull source drivers are designed for medical ultrasound imaging and HIFU beamforming applications.


Complementary MOSFET Arrays

The TCXXXX portfolio consists of combinations of high-voltage N-channel and P-channel MOSFETs offered in a single package, which produces a device with the power handling capabilities of bipolar transistors and with the high input impedance and positive temperature coefficient inherent in MOS devices. Characteristic of all MOS structures, these devices are free from thermal runaway and thermally induced secondary breakdown. Devices are available in 150V to 500V versions.


Continuous Transmit Pulsers

Microchip's family of high-voltage analog switches/multiplexers, pulsers, high-speed MOSFET drivers and discrete high voltage MOSFETs offer the best price/performance ratio available today for ultrasound applications. The feature rich devices offer high-channel density in small packages. Integrated features such as bleed resistors in the ICs further reduce PCB density and overall cost by eliminating an external component.


Continuous Wave (CW) Transmitters

This device is a four-channel, low phase noise, continuous wave transmit IC. A high speed D flip-flop is provided to allow the DIN frequency to be aligned to a high frequency clock. The output N-channel is turned on when a logic high is clocked into the D flip-flop. Data are clocked in during the low to high transition.


Transmit/Receive (T/R) Switch ICs

Microchip's T/R Switch IC's are high voltage, current limiting protection devices designed to protect a low noise receiver from the high voltage transmit pulses in ultrasound applications.


Ultrasound MOSFET Drivers

Microchip's MOSFET drivers are designed to drive high voltage P- and N-Channel MOSFET transistors  and DMOS FETs for medical ultrasound and other applications requiring a high output current for a capacitive load.

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