Analogue, Mixed Signal, LSI


Fast amplifiers for video

22 September 2004 Analogue, Mixed Signal, LSI

National Semiconductor launched what it calls the world's fastest amplifiers for professional and wideband video applications. The high-speed LMH6738 and LMH6739 are designed for applications requiring high bandwidth and low distortion. Operating at 750 MHz small signal bandwidth, they are intended for driving high-resolution video signals in LCD projectors, multimedia, video switching and routing, etc. The LMH6738 is a wideband, triple, current feedback op-amp, and the LMH6739 is a wideband, triple, programmable gain buffer. Both devices have independent disable pins for each amplifier, feature 7,3 ns enable times, and have low crosstalk, allowing them to be used in fast mux/demux applications. The LMH6738/39 devices have 400 MHz large signal bandwidth (LSBW), 3300 V/μs slew rate, and a 0,1dB gain flatness of 200 MHz.



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