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