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Ultrafast Comparators
AD96685/AD96687
FEATURES
AD 96685 FUNCTIO NAL BLO CK D IAGRAM
Fast: 2.5 ns Propagation Delay
Low Pow er: 118 m W per Com parator
Packages: DIP, TO-100, SOIC, PLCC
Pow er Supplies: +5 V, –5.2 V
Logic Com patibility: ECL
MIL-STD-883 Versions Available
50 ps Delay Dispersion
APPLICATIONS
AD 96687 FUNCTIO NAL BLO CK D IAGRAM
High Speed Triggers
High Speed Line Receivers
Threshold Detectors
Window Com parators
Peak Detectors
GENERAL D ESCRIP TIO N
families. T he outputs provide sufficient drive current to directly
drive transmission lines terminated in 50 Ω to –2 V. A level sen-
sitive latch input is included which permits tracking, track-hold,
or sample-hold modes of operation.
T he AD96685 and AD96687 are ultrafast voltage comparators.
T he 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 dif-
fering overdrive conditions.
T he AD96685 and AD96687 are available in both industrial,
–25°C to +85°C, and military temperature ranges. Industrial
range devices are available in 16-pin DIP, SOIC, and 20-lead
PLCC; additionally, the AD96685 is available in a 10-pin,
T O-100 metal can.
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
REV. C
Inform ation furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
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Tel: 617/ 329-4700
Fax: 617/ 326-8703