EL4421C

EL4421C 22C 41C 42C 43C 44C EL4421C 22C 41C 42C 43C 44C Multiplexed-Input Video Amplifiers Features  Unity or a 2-gain bandwidth of 80 MHz  70 dB off-channel isolation at 4 MHz  Directly drives high-impedance or 75X loads  02% and 02 differential gain and phase errors  8 ns switching time  k 100 mV switching glitch  0 2% loaded gain error  Compatible with g 3V to g 15V supplies  160 mW maximum dissipation at g 5V supplies General Description The EL44XX family of video multiplexed-amplifiers offers a very quick 8 ns switching time and low glitch along with very low video distortion The amplifiers have good gain accuracy even when driving low-impedance loads To save power the amplifiers do not require heavy loading to remain stable The EL4421 and EL4422 are two-input multiplexed amplifiers The -inputs of the input stages are wired together and the device can be used as a pin-compatible upgrade from the MAX453 The EL4441 and EL4442 have four inputs also with common feedback These may be used as upgrades of the MAX454 The EL4443 and EL4444 are also 4-input multiplexed amplifiers but both positive and negative inputs are wired separately A wide variety of gain- and phase-switching circuits can be built using independent feedback paths for each channel The EL4421 EL4441 and EL4443 are internally compensated for unity-gain operation The EL4422 EL4442 and EL4444 are compensated for gains of a 2 or more especially useful for driving back-matched cables The amplifiers have a...