The AD8142 are triple, low cost, differential or single-ended-input-to-differential-output drivers. Each amplifier has a fixed gain of 2 to compensate for the attenuation of the line termination resistors. They are specifically designed for RGB signals but can be used for any type of signals. The amplifiers have very fast slew rate and settling time while being manufactured on a cost effective CMOS process. They are optimized for high resolution video performance with a 0.1 dB flatness of 65 MHz, which allows driving high resolution video over any type of UTP cable. The drivers have an internal common-mode feedback loop that provides output amplitude and phase matching, achieving -50 dB balance error at 50 MHz and thereby suppressing even-order harmonics and minimizing radiated electromagnetic interference (EMI). The AD8142 includes a unique sync-on-common-mode feature that allows the user to transmit balanced horizontal and vertical video sync signals over the three common-mode channels. They are available in a 24-lead 4 mm × 4 mm LFCSP and operate over a temperature range of -40°C to +85°C.
Triple, high speed differential drivers
255 MHz, -3 dB large signal bandwidth
65 MHz, 0.1 dB flatness
1150 V/micro s slew rate
12 ns settling time
Single 5V or split supply operation
Fixed gain of 2
Internal common-mode feedback network
Output balance error -50 dB @ 50 MHz
AD8142 has integrated sync-on-common-mode circuitry
High-Z output when disabled
Differential-to-differential or single-ended-to-differential operation
High isolation between amplifiers: 100 dB @ 10 MHz
Low power: 44 mA @ 5V
Available in space-saving packaging: 4 mm × 4 mm LFCSP