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AD96687BR-REEL Datasheet(PDF) 1 Page - Analog Devices |
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AD96687BR-REEL Datasheet(HTML) 1 Page - Analog Devices |
1 / 8 page 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, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD96685/AD96687 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 © Analog Devices, Inc., 2001 Ultrafast Comparators AD96685 FUNCTIONAL BLOCK DIAGRAM NONINVERTING INPUT INVERTING INPUT Q OUTPUT Q OUTPUT RL RL VT LATCH ENABLE AD96687 FUNCTIONAL BLOCK DIAGRAM NONINVERTING INPUT INVERTING INPUT RL RL VT Q OUTPUT Q OUTPUT LE LE LATCH ENABLE NONINVERTING INPUT INVERTING INPUT RL RL Q OUTPUT Q OUTPUT LE LE LATCH ENABLE THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL PULL-DOWN RESISTORS.THESE RESISTORS MAY BE IN THE RANGE OF 50 -200 CONNECTED TO –2.0V, OR 200 -2000 FEATURES 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 APPLICATIONS High Speed Triggers High Speed Line Receivers Threshold Detectors Window Comparators Peak Detectors 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 Ω 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. |
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