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AD96687:  Ultra Fast ECL Dual Comparator

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 ...More

AD96687:  Ultra Fast ECL Dual Comparator

Product 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 logicfamilies. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ohm to -2 V. A level sensitive latch input is included which permits tracking, track-hold, or sample-hold modes of operation.

The 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, TO-100 metal can.

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  • 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
  • Logic Output: Diff/ECL
  • # Per Pkg: 2
  • Prop Delay (ns)typ: 6ns
  • Voltage Supply (V): 5, -5.2
  • Package: 16-Lead DIP,16-Lead SOIC,20-Lead PLCC
  • Latch Enable Pin: X

Functional Block Diagram for AD96687

AD96687 Diagram
Functional Block Diagram for AD96687

Similar Products

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Part# Prop Delay (ns)typ # Per Pkg Total Power (mW) Voltage Supply (V) No of Supplies Input Range (V) Logic Output Adjustable Hysteresis Min Pulse Width
ADCMP567 0.25 2 520 5, -5.2 2 -2 to 3V PECL - 200ps
ADCMP566 0.25 2 450 5, -5.2 2 -2 to 3V ECL - 200ps
AD790 45 1 250 +/-15 3 -Vs to Vs -2V TTL/CMOS Fixed -
AD8465 1.5 1 42 2.5 to 5.5 2 -0.2 to Vcc+0.2V LVDS X 1ns
AD8561 7 1 65 +/- 5 2 -5.0V to +3.0V Diff/TTL - -
AD8564 8 4 150 +/- 5 2 -5.0V to +3.0V TTL/CMOS - -
AD8611 5.5 1 50 3 to 5 1 0 to 3V Diff/TTL - -
AD8612 5.5 2 100 3 to 5 1 0 to 3V Diff/TTL - -
AD96685 6 1 120 5, -5.2 2 -2.5V to +5.0V Diff/ECL - -
AD96687 6 2 240 5, -5.2 2 -2.5V to +5.0V Diff/ECL - -
ADCMP551 0.75 2 60 3.3 to 5 1 -0.2 to Vcc-2V PECL - 700ps
ADCMP552 0.75 2 60 3.3 to 5 1 -0.2 to Vcc-2V PECL X 700ps
ADCMP553 0.75 1 30 3.3 to 5 1 -0.2 to Vcc-2V PECL - 700ps
ADCMP561 0.75 2 160 5, -5.2 2 -2 to 3V PECL - 700ps
ADCMP562 0.75 2 160 5, -5.2 2 -2 to 3V PECL X 700ps
ADCMP563 0.75 2 120 5, -5.2 2 -2 to 3V ECL - 700ps
ADCMP564 0.75 2 120 5, -5.2 2 -2 to 3V ECL X 700ps
ADCMP572 0.15 1 145 3.3 to 5 1 -0.2 to Vcci-2.1V CML X 80ps
ADCMP573 0.15 1 145 3.3 to 5 1 -0.2 to Vcci-2.1V PECL X 80ps
ADCMP580 0.15 1 240 5, -5.2 2 -2 to 3V CML X 80ps
ADCMP581 0.15 1 240 5, -5.2 2 -2 to 3V ECL X 80ps
ADCMP582 0.15 1 240 5, -5.2 2 -2 to 3V PECL X 80ps
ADCMP600 3 1 6 2.5 to 5.5 1 -0.2 to Vcc+0.2V TTL/CMOS - 3ns
ADCMP601 3 1 6 2.5 to 5.5 1 -0.2 to Vcc+0.2V TTL/CMOS X 3ns
ADCMP602 3 1 6 2.5 to 5.5 2 -0.2 to Vcc+0.2V TTL/CMOS X 3ns
ADCMP603 3 1 6 2.5 to 5.5 3 -0.5 to Vcc+0.5V TTL/CMOS X 3ns
ADCMP604 1.5 1 42 2.5 to 5.5 1 -0.2 to Vcc+0.2V LVDS - 1ns
ADCMP605 1.5 1 42 2.5 to 5.5 2 -0.2 to Vcc+0.2V LVDS X 1ns
ADCMP606 1 1 62 2.5 to 5.5 1 -0.2 to Vcc+0.2V CML - 600ps
ADCMP607 1 1 62 2.5 to 5.5 2 -0.2 to Vcc+0.2V CML X 600ps
ADCMP608 30 1 1 2.5 to 5.5 1 -0.2 to Vcc+0.2V TTL/CMOS - 35ns
ADCMP609 30 1 1 2.5 to 5.5 1 -0.2 to Vcc+0.2V TTL/CMOS X 35ns
CMP401 23 4 110 +/- 5 2 -5.0V to +4.0V TTL/CMOS - -
ADCMP565 0.3 2 435 5, -5.2 2 -2 to 3V ECL - 200ps
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  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
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  • Automotive: -40 to +125 degrees Celsius
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.