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SPT9687SIP Datasheet(PDF) 5 Page - Cadeka Microcircuits LLC.

Part # SPT9687SIP
Description  DUAL ULTRAFAST VOLTAGE COMPARATOR
PDF  8 Pages
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Manufacturer  CADEKA [Cadeka Microcircuits LLC.]
Direct Link  http://www.cadeka.com
Logo CADEKA - Cadeka Microcircuits LLC.

SPT9687SIP Datasheet(HTML) 5 Page - Cadeka Microcircuits LLC.

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5
3/21/97
SPT9687
VIN
VRef
Noninverting
Input
Inverting
Input
GND
.1 µF
Q Output
+
-
Q Output
= Represents line termination.
VCC
VEE
.1 µF
-2 V
RL
50
Ω
LE
LE
RL
50
Ω
ECL
Hysteresis is obtained by applying a DC bias to the LE pin.
VLE = -1.3 V ±100 mV, VLE = -1.3 V.
Represents line termination.
VEE
VCC
VIN
VREF
Noninverting
Input
Inverting
Input
GND
.1 µF
Q OUTPUT
+
-
Q OUTPUT
LE
300
Ω
-5.2 V
VO
VIN
VLE
100
Ω
100
Ω
VLE
0.1 µF
300
Ω
LE
.1 µF
RL
50
Ω
-2 V
RL
50
Ω
-5.2 V
Figure 3 - Typical Interface Circuit
Figure 4 - Typical Interface With Hysteresis
Q
3
R 2
R
1
V
CC
V
IN
R
IN
V
IN
V
R2
VR1
V
EE
R 3
R 4
R 5
R 6
R 7
Q
2
Q
6
Q
8
Q
10
Q
12
V
PRE
Q
11
Q9
Q
5
Q
7
Q
1
Q
4
IN
1 pF
C
IN
1 pF
C
100
Ω
100
Ω
V
PRE
R
IN
Figure 5 - Equivalent Input Circuit
Figure 6 - AC Test Fixture
SEMI
RIGID
SEMI
RIGID
SEMI-
RIGID
SEMI-
RIGID
DUT
0.1 µF
0.1 µF
0.1 µF
0.1 µF
50
50
50
50
50
100
100
100
50
100
100
6
6
666
6
6
6
GND
15 µF
L1
L2
L2
L1
L1
L3
4
V+
V-
+
-
LE
LE
50
SAMPLING
SCOPE
V
V
OUT
OUT
+
-
15 µF
15 µF
TANT
+
+
-
-
LE
MONITOR
LE
LE
LE
MONITOR
VpD
VEE
(-5.2 V)
(-4.0 V)
V
IN
-
V
IN
+
V
IN
+
MONITOR
VCC
(+5.0 V)
6
Q
Q
50
Ω Coax
50
Ω
Rz
Vpd
(-4.0 V)
100
Ω
RL
100
Ω
RZ
Figure 8 - Test Load
4.5 mA
Q Output
Q Output
Q23
Q24
R7
240
Ω
R8
240
Ω
V1
Q21
Q22
V2
Figure 7 - Output Circuit



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