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AD96685_01

更新时间: 2024-11-11 04:04:23
品牌 Logo 应用领域
亚德诺 - ADI 比较器
页数 文件大小 规格书
8页 101K
描述
Ultrafast Comparators

AD96685_01 数据手册

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a
Ultrafast Comparators  
AD96685/AD96687  
FEATURES  
AD96685 FUNCTIONAL BLOCK DIAGRAM  
Fast: 2.5 ns Propagation Delay  
Low Power: 118 mW per Comparator  
Packages: DIP, SOIC, PLCC  
Power Supplies: +5 V, –5.2 V  
Logic Compatibility: ECL  
50 ps Delay Dispersion  
NONINVERTING  
Q OUTPUT  
INPUT  
INVERTING  
Q OUTPUT  
INPUT  
R
R
L
L
LATCH  
ENABLE  
V
T
APPLICATIONS  
High Speed Triggers  
High Speed Line Receivers  
Threshold Detectors  
Window Comparators  
Peak Detectors  
AD96687 FUNCTIONAL BLOCK DIAGRAM  
NONINVERTING  
NONINVERTING  
INPUT  
INPUT  
Q OUTPUT Q OUTPUT  
Q OUTPUT Q OUTPUT  
INVERTING  
INPUT  
INVERTING  
INPUT  
R
R
R
R
L
L
L
L
LE LE  
LE LE  
V
T
LATCH  
ENABLE  
LATCH  
ENABLE  
THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL  
PULL-DOWN RESISTORS.THESE RESISTORS MAY BE INTHE  
RANGE OF 50-200CONNECTEDTO –2.0V, OR 200-2000⍀  
GENERAL DESCRIPTION  
The AD96685 and AD96687 are ultrafast voltage comparators.  
The AD96685 is a single comparator with 2.5 ns propagation  
delay; the AD96687 is an equally fast dual comparator. Both  
devices feature 50 ps propagation delay dispersion which is a  
particularly important characteristic of high-speed comparators.  
It is a measure of the difference in propagation delay under  
differing overdrive conditions.  
A fast, high precision differential input stage permits consistent  
propagation delay with a wide variety of signals in the common-  
mode range from –2.5 V to +5 V. Outputs are complementary  
digital signals fully compatible with ECL 10 K and 10 KH logic  
families. The outputs provide sufficient drive current to directly  
drive transmission lines terminated in 50 to –2 V. A level  
sensitive latch input which permits tracking, track-hold, or  
sample-hold modes of operation is included.  
The AD96685 is available in industrial –25°C to +85°C range  
in 16-pin SOIC.  
The AD96687 is available in industrial range –25°C to +85°C,  
in 16-pin DIP, SOIC, and 20-lead PLCC.  
REV. D  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2001  

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