PRODUCT DESCRIPTION

The AD8381 provides a fast, 10-bit latched decimating digital input, which drives six high voltage outputs. Ten-bit input words are sequentially loaded into six separate high speed, bipolar DACs. Flexible digital input format allows several AD8381s to be used in parallel for higher resolution displays. STSQ synchronizes sequential input loading, XFR controls synchronous output updating and R/L controls the direction of loading as either left-to-right or right-to-left. Six channels of high voltage output drivers drive to within 1.3 V of the rail in rated settling time. The output signal can be adjusted for brightness, signal inversion, and contrast for maximum flexibility.

FEATURES

High Voltage Drive:

Rated Settling Time to within 1.3 V of Supply Rails

Output Overload Protection

High Update Rates:

Fast, 100 Ms/s 10-Bit Input Word Rate

Low Power Dissipation: 570 mW

Includes STBY Function

Voltage Controlled Video Reference (Brightness) and

Full-Scale (Contrast) Output Levels

3.3 V or 5 V Logic and 9 V to 18 V Analog Supplies

High Accuracy:

Laser Trimming Eliminates External Calibration

Flexible Logic:

INV Reverses Polarity of Video Signal

STSQ/XFR for Parallel AD8381 Operation in

12-Channel Systems

Drives Capacitive Loads:

27 ns Settling Time to 1 into 150 pF Load

Slew Rate 265 V/μs with 150 pF Load

Available in 48-Lead LQFP

APPLICATIONS

LCD Analog Column Driver