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AD8386 Dataheets PDF



Part Number AD8386
Manufacturers Analog Devices
Logo Analog Devices
Description 12-Channel Output Decimating LCD Driver
Datasheet AD8386 DatasheetAD8386 Datasheet (PDF)

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 Static power dissipation: 1.4 W Voltage-controlled video reference (brightness), offset, 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 or calibration Flexible logic XFR allows parallel AD.

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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 Static power dissipation: 1.4 W Voltage-controlled video reference (brightness), offset, 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 or calibration Flexible logic XFR allows parallel AD8386 operation Fast settling into capacitive loads 35 ns settling time to 0.25% into 150 pF load Slew rate 400 V/μs Available in 64-lead 9 mm × 9 mm LFCSP_VQ GENERAL DESCRIPTION The AD8386 provides a fast, 10-bit, latched, decimating digital input that drives 12 high voltage outputs. Input words with 10 bits are loaded sequentially into 12 separate high speed, bipolar DACs. Flexible digital input format allows several AD8386s 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. The AD8386 is fabricated on ADI’s fast bipolar, 26 V XFHV process, which provides fast input logic, bipolar DACs with trimmed accuracy and fast settling, high voltage, precision drive amplifiers on the same chip. The AD8386 dissipates 1.4 W nominal static power. The AD8386 is offered in a 64-lead 9 mm × 9 mm LFCSP_VQ package and operates over the commercial temperature range of 0°C to 85°C. 10-Bit, 12-Channel Output Decimating LCD Driver AD8386 FUNCTIONAL BLOCK DIAGRAM BYP VRH 2 VRH VRL 10 DB(0:9) R/L 3 CLK XFR INV GCTL 3 GSW TSW SDI 3 SCL SEN SVRH 2 SVRL SVRL BIAS SCALING CONTROL TWO-STAGE 10-BIT LATCH DACs SEQUENCE CONTROL INV CONTROL 12-BIT SHIFT REGISTER 8-BIT DAC Figure 1. VID0 VID1 VID2 VID3 VID4 12 VID5 VID6 VID7 VID8 VID9 VID10 VID11 VAO AD8386 05687-001 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. AD8386 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 DecDriver® Section ....................................................................... 3 Serial Interface Section ................................................................ 5 Absolute Maximum Ratings............................................................ 6 Maximum Power Dissipation ..................................................... 6 Overload Protection..................................................................... 6 Exposed Paddle............................................................................. 6 ESD Caution.................................................................................. 6 Operating Temperature Range ................................................... 7 Pin Configuration and Function Descriptions............................. 8 DecDriver Block Diagram and Timing ........................................ 10 Serial Interface Block Diagram and Timing ............................... 12 Functional Description .................................................................. 13 REVISION HISTORY 8/05—Revision 0: Initial Version Reference and Control Input Descriptions............................. 13 Transfer Function and Analog Output Voltage...................... 13 Accuracy ...................................................................................... 14 3-Wire Serial Interface............................................................... 14 Output Operating Modes.......................................................... 14 Overload Protection................................................................... 14 Applications..................................................................................... 15 Optimized Reliability with the Thermal Protection Circuit 15 Operation in High Ambient Temperature .............................. 15 Power Supply Sequencing ......................................................... 15 Gro.


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