AD96687BQ Analog Devices Inc, AD96687BQ Datasheet

Voltage Comparator IC

AD96687BQ

Manufacturer Part Number
AD96687BQ
Description
Voltage Comparator IC
Manufacturer
Analog Devices Inc
Type
with Latchr
Datasheet

Specifications of AD96687BQ

Package / Case
16-DIP
Number Of Elements
2
Output Type
Complementary, ECL, Open-Emitter
Mounting Type
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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a
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.
NONINVERTING
INVERTING
INPUT
INPUT
AD96685 FUNCTIONAL BLOCK DIAGRAM
AD96687 FUNCTIONAL BLOCK DIAGRAM
LE
ENABLE
NONINVERTING
LATCH
THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL
PULL-DOWN RESISTORS. THESE RESISTORS MAY BE IN THE
RANGE OF 50 -200
LE
INVERTING
INPUT
INPUT
Ultrafast Comparators
R
L
AD96685/AD96687
R
Q OUTPUT
Q OUTPUT
L
CONNECTED TO –2.0V, OR 200 -2000
ENABLE
LATCH
V
T
Q OUTPUT
Q OUTPUT
R
L
V
T
R
L
R
L
R
L
Q OUTPUT
Q OUTPUT
ENABLE
LE
LATCH
NONINVERTING
LE
INVERTING
INPUT
INPUT

Related parts for AD96687BQ

AD96687BQ Summary of contents

Page 1

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 ...

Page 2

... VI –1 –1 2.5 IV 2.5 IV 2 2.0 IV 0 50% 50% AD96687BQ/BP/BR Max Min Typ Max 1.0 0.1 1.0 1.2 1.2 200 2 +5.0 –2.5 +5 –1.1 –1.5 –1 –1.1 –1.5 –1.5 3.5 2.5 3.5 3.5 2.5 3.5 3.5 2.5 3.5 3.5 2.5 3 ...

Page 3

... Input Voltage Range Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Latch Enable Voltage . . . . . . . . . . . . . . . . . . . . . . . . –V Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Temperature Range AD96685BR/AD96687BQ/BR/ –25°C to +85°C Storage Temperature Range . . . . . . . . . . . . –55°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 175°C Lead Soldering Temperature (10 sec 300°C NOTES 1 Absolute maximum ratings are limiting values, may be applied individually, and beyond which serviceability of the circuit may be impaired ...

Page 4

... SOIC, Industrial –25°C to +85°C 20-Pin PLCC, Industrial –25°C to +85°C 16-Pin DIP, Industrial –25°C to +85°C 16-Pin SOIC, Industrial –25°C to +85°C 16-Pin SOIC, Industrial AD96687BQ/BR Q OUTPUT OUTPUT Q OUTPUT Q OUTPUT 2 15 GROUND ...

Page 5

Typical Performance Characteristics–AD96685/AD96687 APPLICATIONS INFORMATION The AD96685/AD96687 comparators are very high speed devices. Consequently, high speed design techniques must be employed to achieve the best performance. The most critical aspect of any AD96685/AD96687 design is the use of a low ...

Page 6

AD96685/AD96687 Typical Applications AD96685/ AD96687 REF LATCH ENABLE –2V INPUT +V OUTPUTS 50 50 –V REF 50 AD96685 AD96687 50 OUTPUT REF –2V ...

Page 7

Ceramic DIP 0.098 (2.49) MAX 0.005 (0.13) MIN 16 9 0.310 (7.87) PIN 1 0.220 (5.59 0.840 (21.34) MAX 0.060 (1.52) 0.015 (0.38) 0.200 (5.08) MAX 0.150 (3.81) 0.200 (5.08) MIN 0.125 (3.18) SEATING 0.100 0.070 (1.78) ...

Page 8

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