AD8142

Data Sheet Low Cost, Triple Differential Drivers for Wideband Video AD8141/AD8142 FEATURES Triple, high speed differential drivers 255 MHz, −3 dB large signal bandwidth 65 MHz, 0.1 dB flatness 1150 V/μs slew rate 12 ns settling time Single 5 V or split supply operation Fixed gain of 2 Internal common-mode feedback network Output balance error −50 dB at 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 at 10 MHz Low power: 44 mA at 5 V Available in space-saving packaging: 4 mm × 4 mm LFCSP APPLICATIONS Keyboard-video-mouse (KVM) networking Video distribution Digital signage Security cameras FUNCTIONAL BLOCK DIAGRAMS VS+ –IN B +IN B VS–/GND VOCMA VOCMB DIS 1 VS–/GND 2 –IN A 3 +IN A 4 VS–/GND 5 –OUT A 6 24 23 22 21 20 19 AD8141 –+ +– –+ 18 VOCMC 17 VS+ 16 –IN C 15 +IN C 14 VS–/GND 13 –OUT C 7 8 9 10 11 12 +OUT A VS+ +OUT B –OUT B VS+ +OUT C Figure 1. 09461-001 VS+ –IN G +IN G VS–/GND VSYNC HSYNC 24 23 22 21 20 19 AD8142 DIS 1 VS–/GND 2 –IN R 3 +IN R 4 VS–/GND 5 –OUT R 6 ×2 +– –+ –+ 18 SYNC LEVEL 17 VS+ 16 –IN B 15 +IN B 14 VS–/GND 13 –OUT B 7 8 9 10 11 12 +OUT R VS+ +OUT G –OUT G VS+ +OUT B 09461-002 GENERAL DESCRIPTION The AD8141 and 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 li...