Supertex MD0107 Improves Signal Quality as a Damping Device in Ultrasound Applications and Impedance Matching Device for Coax Connections

SUNNYVALE, CA -- (Marketwired) -- Jan 28, 2014 -- Supertex (NASDAQ: SUPX), a recognized leader in high voltage analog and mixed signal integrated circuits (ICs), today introduced the MD0107, a high-speed four channel auto damping device. The Supertex MD0107 is a high voltage device intended to improve the signal and image quality of ultrasound systems, and also the general signal quality with coaxial connections.

The MD0107 can be considered as a normally closed switch with a typical switch resistance of 35 ohms. In this state, the MD0107 ensures that any leakage currents are shunted to ground, while maintaining a low voltage drop. This low voltage level is beneficial as it ensures that the anti-parallel diodes in the transmit path remain off during the receive cycle of the system. Thus the anti-parallel diodes more effectively block the small signals and prevent transmitter noise from contaminating the receive signal.

During operation of the pulser, the MD0107 switch opens and thus presents a high impedance to the transmitter pulse. The switch opens as soon as the voltage across it exceeds +/-2V and can withstand up to +/-130V. In this off-state, the MD0107 has very little effect on the transmit pulses or the power dissipated by the pulser.

The impedance of the MD0107, when the voltage across it is low, is suitable for terminating transmission lines. Where the line impedance is higher than the nominal 35 ohms of the MD0107, a series resistor can be added; for example terminating a ~75 ohm line can be effectively achieved by adding a 39 ohm resistor. Without correct line termination, reflections can cause higher signal loss and degrade image quality in ultrasound systems.

"The MD0107 is a versatile entrant into Supertex's offerings for ultrasound and other signal applications. The MD0107 provides an alternative method of automatically terminating a transmission line without any logic controls or power supplies," states Jimes Lei, Director of Applications Engineer for Supertex.

The MD0107 is available in a lead(Pb)-free/RoHS compliant 12-lead (4x4) QFN package (MD0107K6-G). Samples are available from stock. Lead-time for production quantities is 4-6 weeks, ARO. Pricing is US$2.19 each in 1K quantities.

About Supertex
Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused in high voltage interface products for use in the telecommunications, networking systems, flat panel displays, medical and industrial electronics industries. Supertex product, corporate and financial information is readily available at www.supertex.com.

Corporate Headquarters:
Christine Mahiya
Marketing Communications Manager
408/222-4858

christin@supertex.com 





Review Article Be the first to review this article
Featured Video
Jobs
Director of Process Engineering. for Tekni-Plex at Toledo, Ohio
System Designer/Engineer for Bluewater at Southfield, Michigan
Mechanical Engineer for Allen & Shariff Corporation at Pittsburgh, Pennsylvania
Mid-Level Mechanical Engineer for Kiewit at lenexa, Kansas
Director, Business Development for Kongsberg Geospatial at remote from home, Any State in the USA
Director, Business Development for Kongsberg Geospatial at Ottawa, Canada
Upcoming Events
Montréal Manufacturing Technology Show (MMTS) 2018 at Place Bonaventure Montréal Canada - May 14 - 16, 2018
ESPRIT World 2018 at Indianapolis Marriott Downtown 350 West Maryland Street Indianapolis IN - Jun 11 - 15, 2018
HxGN LIVE 2018 at The Venetian Las Vegas NV - Jun 12 - 15, 2018
IMTS2018 International Manufacturing Tech Show at McCormick Place Chicago IL - Sep 10 - 15, 2018
SolidCAM: SolidCAM SEE IT LIVE



Internet Business Systems © 2018 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise