The FHP3194 is a 4:1 analog multiplexer designed for high speed video applications. The output amplifier is a high-speed current feedback amplifier that offers stellar large signal performance of 335MHz -3dB bandwidth and 80MHz 0.1dB bandwidth. The gain of the output amplifier is selectable through two external resistors (R_f and R_g), allowing further design flexibility. The 2V_pp bandwidth performance, 1600V/µs slew rate, and 0.02% / 0.03° differential gain and phase exceed the requirements of high-definition television (HDTV) and other multimedia applications. The output amplifier also provides ample output current to drive multiple video loads. Two address bits (A0 and A1) are used to select one of the four buffered inputs. The FHP3194 offers excellent 7.5ns switching times and better than 70dB channel isolation. The FHP3194 offers both shutdown and disable capability. During shutdown, the FHP3194 consumes only 3mA of supply current and provides maximum input to output isolation. During disable mode, only the output amplifier is disabled, reducing output glitches and allowing for multiplexer expansion.

• Video switchers and routers
• Multiple input HDTV switching
• Picture-in-picture video switch
• Multi-channel ADC Driver