Description

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 thru 2 external resistors (Rf and Rg), allowing further flexibility. The 2Vpp 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.

Features at ±5V

■ 0.1dB gain flatness to 155MHz

■ 7.5ns channel switching time

■ 0.02/0.03° differential gain/phase error

■ 335MHz full power -3dB bandwidth at G=2

■ 1600V/µs slew rate

■ 60mA output current (easily drives three video loads)

■ 70dB channel to channel isolation

■ 13mA supply current

■ 4mA supply current in disable mode

■ 3mA supply current in shutdown mode

■ Fully specified at ±5V supplies

■ Lead (Pb) - free SOIC-14 and TSSOP-14 packages

Applications

■ Video switchers and routers

■ Multiple Input HDTV switching

■ Picture in picture video switch

■ Multi-channel ADC Driver