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HCPL270L Datasheet, PDF (11/12 Pages) Agilent(Hewlett-Packard) – Low Input Current High Gain LVTTL/LVCMOS Compatible 3.3 V Optocouplers
◁
IF
0
VO
(SATURATED
RESPONSE)
t PHL
50%
3.3 V
50%
VOL
t PLH
VO
(NON-SATURATED
RESPONSE)
tf
90%
10%
90%
10%
3.3 V
tr
PULSE IF
GEN.
1
ZO = 50 Ω
t r = 5 ns
2
10% DUTY CYCLE
I/f < 100 µs
3
I F MONITOR
4
RM
Figure 5. Switching test circuit.
8
3.3 V
7
RL
6
VO
0.1 µF
5
CL = 15 pF*
* INCLUDES PROBE AND
FIXTURE CAPACITANCE
10 V
VCM 0 V 10%
tr
90% 90%
tr, tf = 16 ns
10%
tf
VO
SWITCH AT A: IF = 0 mA
VO
SWITCH AT B: IF = 1.6 mA
3.3 V
VOL
IF
B
A
VFF
RCC (SEE NOTE 6)
1
8
+3.3 V
2
7
RL
3
6
VO
4
5
VCM
+–
PULSE GEN.
Figure 6. Test circuit for transient immunity and typical waveforms.
11
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