Compact Devices Offer Maximum On-Resistance Down to 10 Ω, Flatness of 2.6 Ω or Lower, and ±15-V Analog Signal Range
Vishay Intertechnology, Inc. (NYSE: VSH) today released five new low-impedance, high-voltage analog switches with on-resistance as low as 10 Ω for audio, video, and data switching applications.

The new devices include the dual-supply single-pole/single-throw (SPST) DG467, DG468, DG447, and DG448 and the single-pole/double-throw (SPDT) DG449.

By combining extremely low on-resistance (10 Ω for the DG467 and DG468, and 25 Ω for the DG447 and DG448) and low leakages with a compact size, the devices are also ideally suited as improved drop-in replacements for MAX4647, MAX4648, and MAX4649 analog switches.

Typical applications will include high-speed, low-error switching, routing, and data acquisition in precision test equipment, instrumentation, communications systems, PBX and PABX systems, audio equipment, relay replacement, redundant telecom systems, PC multimedia boards, and hard disc drives.

The DG447 and DG467 SPST switches are normally closed, while the DG448 and DG468 SPST switches are normally open. The DG449 is an SPDT switch with one normally open contact and one normally closed contact. The devices operate either from a single +7-V to 36-V supply, or from dual ±4.5-V to ±20-V supplies.

The SPDT DG449 is optimized for switching video in board- and system-level devices. With its 38-Ω on-resistance, it reduces the switching losses to <0.5 dB and eliminates the need to adjust op amp gain settings.

All the devices provide a wide ±15-V analog signal range and offer simple interfacing by not requiring a VL logic supply. The devices feature rail-to-rail signal handling and are TTL and CMOS input compatible.

Device Specification Table

Samples and production quantities of the new high-voltage analog switches are available now, with lead times of 8 to 10 weeks for larger orders.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at http://www.vishay.com.

Courtesy of  Vishay