Low Cost 10-Bit, 6-Channel Output

AD8383

Rev. 0

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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

Low static power dissipation: 0.7 W

Includes STBY function

Voltage-controlled video reference (brightness) and

full-scale (contrast) output levels

INV bit reverses polarity of video signal

3.3 V logic, 9 V to 18 V analog supplies

High accuracy voltage outputs

Laser trimming eliminates the need for adjustments

Flexible logic

STSQ/XFR allow parallel AD8383 operation at various

resolutions

Fast settling into capacitive loads

30 ns settling time to 0.25% into 150 pF load

Slew rate 460 V/µs

Available in 48-lead 7 mm × 7 mm LFCSP package

APPLICATIONS

LCD analog column driver

FUNCTIONAL BLOCK DIAGRAM

VREFHI

VREFLO

VID2

VID3

VID4

VID5

VID1

VID0

AD8383

STBY

BYP

R/L

E/O

CLK

STSQ

XFR

INV

V1

V2

DB(0:9)

2-STAGE

2-STAGE

2-STAGE

2-STAGE

2-STAGE

2-STAGE

LATCH

LATCH

LATCH

LATCH

LATCH

LATCH

10

10

10

10

10

10

10

10

10

10

10

10

SCALING

CONTROL

SEQUENCE

CONTROL

BIAS

10

10

DAC

DAC

DAC

DAC

DAC

DAC

Figure 1

PRODUCT DESCRIPTION

The AD8383 provides a fast, 10-bit latched decimating digital

input that drives six high voltage outputs. 10-bit input words are

sequentially loaded into six separate, high speed, bipolar DACs.

Flexible digital input format allows several AD8383s 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. For maximum flexibility,

the output signal can be adjusted for dc reference, signal

inversion.

The AD8383 is fabricated on the 26 V, fast bipolar XFHV

process developed by Analog Devices, Inc. This process

provides fast input logic, bipolar DACs with trimmed accuracy

and fast settling, high voltage, precision drive amplifiers on the

same chip.

The AD8383 dissipates 0.7 W nominal static power. The STBY

pin reduces power to a minimum with fast recovery.

The AD8383 is offered in a 48-lead, 7 mm × 7 mm × 0.85 mm

LFCSP package and operates over the commercial temperature

range of 0°C to 85°C.