GENERAL DESCRIPTION
The AD8385 provides a fast, 10-bit, latched decimating digital input that drives 12 high voltage outputs. 10-bit input words are loaded into 12 separate high speed, bipolar DACs sequentially. Flexible digital input format allows several AD8385s to be used in parallel in high resolution displays. The output signal can be adjusted for dc reference, signal inversion, and contrast for maximum flexibility. Integrated level shifters convert timing signals from a 3 V timing controller to high voltage for LCD panel timing inputs. Two, serial, 8-bit DACs are integrated to provide dc reference signals. A 3-wire serial interface controls overload protection, output mode, and the serial DACs.

FEATURES
   High voltage drive to within 1.3 V of supply rails
   Output short-circuit protection
   High update rates
      Fast, 100 Ms/s 10-bit input data update rate
   Static power dissipation: 1.84 W
      Voltage controlled video reference (brightness), offset,
      and full-scale (contrast) output levels
   INV bit reverses polarity of video signal
   3.3 V logic, 9 V to 18 V analog supplies
      Level shifters for panel timing signals
   High accuracy voltage outputs
      Laser trimming eliminates the need for adjustments or
       calibration
   Flexible logic
      STSQ/XFR allow parallel AD8385 operation
   Fast settling into capacitive loads
      30 ns settling time to 0.25% into 150 pF load
      Slew rate 460 V/µs
   Available in 100-lead 14 mm × 14 mm TQFP E-pad