GENERAL DESCRIPTION

The AD8133 is a major advancement beyond using discrete op amps for driving differential RGB signals over twisted pair cable. The AD8133 is a triple, low cost differential or single-ended input to differential output driver, and each amplifier has a fixed gain of 2 to compensate for the attenuation of line termination resistors. The AD8133 is specifically designed for RGB signals but can be used for any type of analog signals or high speed data transmission. The AD8133 is capable of driving either Category 5 unshielded twisted pair (UTP) cable or differential printed circuit board transmission lines with minimal signal degradation.

FEATURES

Triple high speed fully differential driver

225 MHz −3 dB large signal bandwidth

Easily drives 1.4 V p-p video signal into source-terminated

100 Ω UTP cable

1600 V/µs slew rate

Fixed internal gain of 2

Internal common-mode feedback network

Output balance error −60 dB @ 50 MHz

Differential input and output

Differential-to-differential or single-ended-to-differential

operation

Adjustable output common-mode voltage

Output pull-down feature for line isolation

Low distortion: 64 dB SFDR @ 10 MHz on 5 V supply,

RL, dm = 200 Ω

Low offset: 4 mV typical output referred on 5 V supply

Low power: 26 mA @ 5 V for three drivers

Wide supply voltage range: +5 V to ±5 V

Available in space-saving packaging: 4 mm × 4 mm LFCSP

APPLICATIONS

KVM (keyboard-video-mouse) networking

UTP (unshielded twisted pair) driving

Differential signal multiplexing