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ADD8709WSTZ-REEL View Datasheet(PDF) - Analog Devices

Part Name
Description
Manufacturer
ADD8709WSTZ-REEL
ADI
Analog Devices ADI
ADD8709WSTZ-REEL Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
FEATURES
18 precision gamma reference outputs
Mask-programmable voltage regulator: 0.4% accuracy
Upper 9 buffers swing to VDD
Lower 9 buffers swing to GND
Single-supply operation: 7.5 V to 16.5 V
Gamma current drive: 15 mA per channel
Peak output current: 150 mA
Output voltage stable under load conditions
48-lead, Pb-free LQFP package
APPLICATIONS
LCD TV panels
LCD monitor panels
GENERAL DESCRIPTION
The ADD8709 is an 18-channel integrated gamma reference for
use in LCD TV and monitors panels. The output buffers feature
high current drive and low offset voltage to provide an accurate
and stable gamma curve. The top nine channels swing to VDD
and the lower nine channels swing to GND.
An on-board voltage regulator provides a fixed input for the
gamma buffers, isolating the gamma curve from supply ripple.
The ADD8709 is specified over the temperature range of
–40°C to +105°C and comes in a 48-lead, Pb-free, low-profile
quad flat package.
18-Channel Gamma Buffer
with Regulator
ADD8709
FUNCTIONAL BLOCK DIAGRAM
GND VDD
VDD VDD
FB
VREG OUT
VIN18
VIN17
VIN16
VIN15
VIN14
VIN13
VIN12
VIN11
VIN10
VIN9
VIN8
VIN7
VIN6
VIN5
VIN4
VIN3
VIN2
VIN1
700*
VOLTAGE
REGULATOR
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
700*
GAMMA
BUFFERS
VOUT18
VOUT17
VOUT16
VOUT15
VOUT14
VOUT13
VOUT12
VOUT11
VOUT10
VOUT9
VOUT8
VOUT7
VOUT6
VOUT5
VOUT4
VOUT3
VOUT2
VOUT1
*ESD PROTECTION RESISTORS
GND GND
Figure 1. 48-Lead LQFP
Rev. A
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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
 

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