electronics-journal.com
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STMICROELECTRONICS INTRODUCES HIGHLY INTEGRATED 32-CHANNEL ULTRASOUND TRANSMITTER OPTIMIZED FOR HANDHELD SCANNERS
The new 32-channel version contains features to increase performance and integration in next-generation affordable, high-performing scanners for medical and industrial applications.
STMicroelectronics has expanded its family of advanced ultrasound transmitters by adding a 32-channel variant with high output current for portable applications. The new transmitter, STHVUP32, provides ±800mA aimed at portable systems that demand extra drive capability for a coaxial cable-mounted probe.
Joining the portfolio alongside the 64-channel STHVUP64, the new 32-channel version includes innovations to maximize image quality, built-in digital beam steering, a space-saving driver architecture, and low power consumption. These include innovations to maximize image quality, built-in digital beam steering, a space-saving driver architecture, and low power consumption.
Features of the new STHVUP32:
- 5-level output capability enhances flexibility to optimize the picture quality
- High output current allows driving the scanner’s piezoelectric transducer at high speed to enable multiple imaging modes
- Supports continuous-wave (CW) and pulsed-wave (PW) operating modes to allow various types of analysis
- Digital beam steering enhances directional control by permitting greater precision than conventional analog steering using delay circuits
- Self-biased driver architecture that saves connecting decoupling capacitors to the transmitter’s power-supply pins
Built-in protection includes noise blocking, thermal protection, under-voltage protection, and recirculating current protection.
The STHVUP32 is built using ST’s proven BCD8s-SOI technology that supports analog (bipolar), digital (CMOS), and power (DMOS) circuits on the same die. It’s in production now, in a 11.5mm x 10.5mm x 1.35mm 168-ball FC-BGA168 package.
www.st.com
