PRODUCT DESCRIPTION

The AD8384 DecDriver provides a fast, 10-bit, latched, decimating digital input that drives six high voltage outputs. 10-bit input words are loaded sequentially into six separate high speed, bipolar DACs. Flexible digital input format allows several AD8384s 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 input, 8-bit DACs are integrated to provide dc reference signals. DAC addresses and 8-bit data are loaded in one 12-bit serial word.

PRODUCT FEATURES

High accuracy, high resolution voltage outputs

10-bit input resolution

Laser trimmed outputs

Fast settling, high voltage drive

30 ns settling time to 0.25 into a 150 pF load

Slew rate 460 V/µs

Outputs to within 1.3 V of supply rails

High update rates

Fast, 100 Ms/s 10-bit input data update rate

Voltage controlled video reference (brightness), offset, and

full-scale (contrast) output levels

Flexible logic

STSQ/XFR allow parallel AD8384 operation

INV bit reverses polarity of video signal

Output short-circuit protection

3.3 V logic, 9 V to 18 V analog supplies

18 V level shifters for panel timing signals

Available in 80-lead 12 mm × 12 mm TQFP E-pad

APPLICATIONS

LCD analog column drivers