GENERAL DESCRIPTION

The AD8387 DecDriver provides dual, fast latched, 12-bit decimating input, which drives 12 high voltage outputs. Twelve-bit input words are loaded into 12 separate high speed, bipolar DACs sequentially. Flexible digital input format allows more than one AD8387 to be used in parallel for higher resolution displays. The output signal can be adjusted for dc reference, signal inversion, and contrast for maximum flexibility.

FEATURES

High accuracy, high-resolution voltage outputs

1 mV channel matching

12-bit input resolution

Laser-trimmed outputs

Fast settling, high voltage drive

35 ns settling time to 0.25 into 150 pF load

Slew rate 420 V/μs

Outputs to within 1.3 V of supply rails

High update rates

Fast, 110 MHz clock

Programmable video reference (brightness) and

full-scale (contrast) output levels

Flexible logic

INV bit reverses polarity of video signal

R/L reverses loading order of data

ISW selects frame/row or column/dot inversion

DSW selects single or dual data bus mode

Output short-circuit protection

3.3 V logic, 11 V to 18 V analog supplies

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

APPLICATIONS

LCD microdisplay driver