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Video multiplexers boost seamless signal switching

Posted: 26 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:video multiplexer? wide bandwidth? seamless switching?

Texas Instruments Inc. (TI) has released three high-speed video multiplexers, which combine wide bandwidth, high slew rate, fast switching time, and low switching glitch to optimize performance in professional video applications.

The devices' wide bandwidth and fast slew rate allow the multiplexing of large amounts of data, such as high resolution professional video signals, at higher speeds than previous generations. The OPA875 single-channel and OPA3875 three channel 2:1 features a slew rate of 3100V/?s for a large signal bandwidth of 425MHz at 4Vpp and small signal bandwidth of 700MHz. The OPA4872 single-channel 4:1 multiplexer offers a slew rate of 2300 V/?s for 500MHz at 2Vpp.

In addition to the bandwidth and slew rate capabilities, the devices enable fast and seamless high-speed signal switching between multiple sources.

The OPA875 is available in a SO-8 or the smaller MSOP-8 package, the OPA3875 is available in a SSOP-16 package, and the OPA4872 is in a SO-14 package. Suggested resale pricing in quantities of 1,000 is $1.45 for the OPA875, $2.55 for the OPA3875 and $2.15 for the OPA4872. Samples and evaluation modules are available.

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