NTE3087
Optoisolator
High Speed, Open Collector, NAND Gate Output
Description:
The NTE3087 is an optoisolator which combines a GaAsP LED as the emitter and an integrated high
gain multistage high speed photodetector. The output of the detector circuit is an open collector,
Schottky clamped transistor capable of sinking 50mA. The open collector output provides capability
for bussing, ORing and strobing. The NTE3087 is packaged in a plastic 8pin miniDIP.
Features:
D
LSTTL/TTL Compatible: 5V Supply
D
Ultra High Speed
D
Guaranteed Performance Over Temperature
D
High Isolation Voltage: 2500V
rms
Absolute Maximum Ratings: (T
A
= 0
C to +70
C unless otherwise specified)
Input Forward Current (Note 2), I
F
20mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulse Forward Current (Note 3), I
FP
40mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Voltage, V
R
5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current, I
O
50mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage, V
O
7V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Voltage (1 minute max), V
CC
7V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enable Input Voltage (Not to Exceed V
CC
by More than 500mV) , V
EH
5.5V
. . . . . . . . . . . . . . . . . . .
Output Collector Power Dissipation, P
O
85mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
0
to +70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
55
to +125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Isolation Voltage (Note 3), BV
s
2500V
rms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. Device considered a twoterminal device: Pin1, 2, 3, and 4 are shorted together, and Pin5,
6, 7, and 8 are shorted together.
Note 2. 50% Duty Cycle, 1ms Pulse Width.
Note 3. R.H. = 40 to 60%, AC/1min.
Recommended Operating Conditions:
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Current, Low Level (Each Channel)
I
FL
0
250
A
Input Current, High Level (Each Channel)
I
FH
6.3
15.0
mA
Enable Voltage, Low Level (Output High)
V
EL
0
0.8
V
Enable Voltage, High Level
V
EH
2.0
V
CC
V
Operating Temperature
T
A
0
70
C
Fan Out (TTL Load)
N
8
Electrical Characteristics: (T
A
= 0
C to +70
C, Note 4 unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
High Level Output Current
I
OH
V
CC
= 5.5V, V
O
= 5.5V,
I
F
= 250
A, V
E
= 2V
1
250
A
Low Level Output Voltage
V
OL
V
CC
= 5.5V, I
F
= 5mA,
V
EH
= 2V, I
OL
= 13mA
0.4
0.6
V
High Level Enable Current
I
EH
V
CC
= 5.5V, V
E
= 2.0V
1.0
mA
Low Level Enable Current
I
EL
V
CC
= 5.5V, V
E
= 0.5V
1.6
2.0
mA
High Level Supply Current
I
CCH
V
CC
= 5.5V, I
F
= 0, V
E
= 0.5V
7
14
mA
Low Level Supply Current
I
CCL
V
CC
= 5.5V, I
F
= 10mA, V
E
= 0.5V
12
18
mA
Resistance (InputtoOutput)
R
IO
V
IO
= 500V, T
A
= +25
C
10
12
Capacitance (InputtoOutput)
C
IO
f = 1MHz, T
A
= +25
C
0.6
pF
Input Forward Voltage
V
F
I
F
= 10mA, T
A
= +25
C
1.65
1.9
V
Input Reverse Breakdown Voltage
V
(BR)R
I
R
= 10
A, T
A
= +25
C
5.0
V
Input Capacitance
C
IN
V
F
= 0, f = 1MHz
30
pF
Current Transfer Ratio
CTR
I
F
= 5mA, R
L
= 10
1000
%
Note 4. All typical values at V
CC
= 5V, T
A
= +25
C.
Switching Characteristics: (T
A
= +25
C, V
CC
= 5V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Propagation Delay Time
to High level Output
t
PLH
R
L
= 350
, C
L
= 15pF, I
F
= 7.5mA
60
120
ns
Propagation Delay Time
to Low level Output
t
PLH
60
120
ns
Output RiseFall Time (10% to 90%)
t
r
, t
f
R
L
= 350
, C
L
= 15pF, I
F
= 7.5mA
30
ns
Propagation Delay Time
of Enable from V
EH
to V
EL
t
ELH
R
L
= 350
, C
L
= 15pF, I
F
= 7.5mA,
V
EH
= 3V, V
EL
= 0.5V
25
ns
Propagation Delay Time
of Enable from V
EL
to V
EH
t
EHL
25
ns
Common Mode Transient Immunity
at Logic High Outut Level
CM
H
V
CM
= 10V, R
L
= 350
,
V
O(min)
= 2V, I
F
= 0mA
150
V/
s
Common Mode Transient Immunity
at Logic Low Outut Level
CM
L
V
CM
= 10V, R
L
= 350
,
V
O(max)
= 0.8V, I
F
= 5mA
150
V/
s
Truth Table: (0.1
F bypass capacitor must be connected between Pin8 and Pin5)
Input
Enable
Output
H
H
L
L
H
H
H
L
H
L
L
H
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