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Analog Devices Semiconductor Electronic Components Datasheet

AD8509 Datasheet

Muxed Input LCD Reference Buffers

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AD8509 pdf
9- and 11-Channel, Muxed Input
LCD Reference Buffers
AD8509/AD8511
FEATURES
Single-supply operation: 3.3 V to 6.5 V
High output current: 300 mA
Low supply current: 6 mA
Stable with 1000 pF loads
Pin compatible with LMC6009
Pin compatible with CL-FP6131
48-lead, Pb-free TSSOP/LFCSP packages
APPLICATION
LCD line inversion gamma references
GENERAL DESCRIPTION
The AD8509 and AD8511 are 9-channel and 11-channel LCD
reference buffers, respectively, designed to drive 64 gray scale
column drivers. Each buffer has an A/B input to select between
two voltages for LCD displays. These buffers drive the resistor
ladders of LCD column drivers for gamma correction. The LCD
drivers have higher slew rates and higher output drive currents
than similar competitive parts. This increases the stability of
the reference ladder, resulting in better gray scale and visual
performance.
The AD8509 and AD8511 are specified over the −40°C to +85°C
temperature range. They are available in 48-lead, Pb-free TSSOP
packages in tape and reel. Additionally, the ADD8511 is available
in a 48-lead, Pb-free LFCSP package.
PIN CONFIGURATIONS
NC 1
NC 2
NC 3
INA1 4
INB1 5
INA2 6
INB2 7
INA3 8
INB3 9
INA4 10
INB4 11
INA5 12
INB5 13
INA6 14
INB6 15
INA7 16
INB7 17
INA8 18
INB8 19
INA9 20
INB9 21
NC 22
NC 23
NC 24
AD8509
TOP VIEW
(Not to Scale)
48 NC
47 NC
46 NC
45 NC
44 VCC
43 GND
42 VO1
41 VO2
40 VO3
39 VO4
38 VCC
37 GND
36 VO5
35 VO6
34 VO7
33 VO8
32 VO9
31 GND
30 VCC
29 A/B
28 NC
27 NC
26 NC
25 NC
NC 1
INA1 2
INB1 3
INA2 4
INB2 5
INA3 6
INB3 7
INA4 8
INB4 9
INA5 10
INB5 11
INA6 12
INB6 13
INA7 14
INB7 15
INA8 16
INB8 17
INA9 18
INB9 19
INA10 20
INB10 21
NC 22
INA11 23
INB11 24
AD8511
TOP VIEW
(Not to Scale)
48 NC
47 VO1
46 NC
45 NC
44 VCC
43 GND
42 VO2
41 VO3
40 VO4
39 VO5
38 VCC
37 GND
36 VO6
35 VO7
34 VO8
33 VO9
32 VO10
31 GND
30 VCC
29 A/B
28 NC
27 NC
26 VO11
25 NC
NC = NO CONNECT
NC = NO CONNECT
Figure 2. AD8509 and AD8511 48-Lead TSSOP (RV Suffix)
FUNCTIONAL BLOCK DIAGRAM
INA1
INB1
VO1
INA2
INB2
VO2
INA11
INB11
A/B
Figure 1.
VO11
INA3 1
INB3 2
INA4 3
INB4 4
INA5 5
INB5 6
INA6 7
INB6 8
INA7 9
INB7 10
INA8 11
INB8 12
NC = NO CONNECT
PIN 1
INDICATOR
AD8511
TOP VIEW
(Not to Scale)
36 VO2
35 VO3
34 VO4
33 VO5
32 VCC
31 GND
30 VO6
29 VO7
28 VO8
27 VO9
26 VO10
25 GND
Figure 3. AD8511 48-Lead LFCSP
Rev. C
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2006 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD8509 Datasheet

Muxed Input LCD Reference Buffers

No Preview Available !

AD8509 pdf
AD8509/AD8511
TABLE OF CONTENTS
Features .............................................................................................. 1
Application ........................................................................................ 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Absolute Maximum Ratings ............................................................4
Thermal Resistance .......................................................................4
ESD Caution...................................................................................4
Pin Configurations and Function Descriptions ............................5
Typical Performance Characteristics ..............................................6
Applications........................................................................................8
Outline Dimensions ..........................................................................9
Ordering Guide .............................................................................9
REVISION HISTORY
2/06—Rev. C
Added LFCSP Package.......................................................Universal
Added Pin Configurations and Function Descriptions Section ... 5
Updated Outline Dimensions ........................................................ 9
Changes to Ordering Guide ............................................................ 9
1/05—Rev. A to Rev. B
Changed Maximum Operating Voltage...........................Universal
Change to Features List.................................................................... 1
Changes to Specifications Table...................................................... 3
Changes to Ordering Guide ............................................................ 8
9/04—Rev. 0 to Rev. A
Format Updated..................................................................Universal
Added Pb-Free Part............................................................Universal
Changed Temperature Range............................................Universal
Changed Applications Section.........................................................1
Changes to Ordering Guide .............................................................8
10/97—Revision 0: Initial Version
Rev. C | Page 2 of 12


Part Number AD8509
Description Muxed Input LCD Reference Buffers
Maker Analog Devices
Total Page 12 Pages
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