New medical ultrasound drivers from Supertex deliver deeper body tissue
9 May 2005
Sunnyvale, California USA. Supertex has introduced the HV219, a low
switch resistance, low charge injection, 8-channel, high-voltage analog
switch integrated circuit (IC) that is perfectly suited for use in medical
ultrasound imaging applications. The IC utilizes high-voltage bilateral DMOS
switches and low power CMOS logic to provide efficient control of high
voltage signals, up to 200V. In medical ultrasound applications, this allows
for higher transmitting voltages that provide deeper body tissue imaging.
Other features of the HV219 include low charge injection to obtain
clearer images and a faster frame rate, 11-ohm switch resistance that
minimizes return signal attenuation and CMOS serial shift register logic
control that minimizes I/O connections and power dissipation.
"The development of the HV219 exemplifies Supertex's commitment to the
ultrasound marketplace and our dedication to providing highly efficient,
space-saving driver ICs for medical ultrasound designers," states Ahmed
Masood, Director of Marketing for Supertex. "Our proprietary technology
enables us to offer a truly innovative solution that delivers deep body
tissue imaging and with exceptionally clear images."
Additionally, Supertex released the 16-Channel HV238TA in a space-saving
TAPP package for higher board density. The IC features integrated bleed
resistors on the outputs that discharge residual DC voltages and reduce
erroneous signals in medical ultrasound and non-destructive evaluation