Notes:
1. The LED is OFF when the V
I
is high and ON when V
I
is low.
2. Device considered a two terminal device; pins 1-4 shorted together and pins 5-8 shorted together.
3. In accordance with UL 1577, for devices with minimum V
ISO
specified at 3750 V rms, each optocoupler is proof-tested by applying an
insulation test voltage greater than 4500 V rms for one second (leakage current detection limit I
I-O
< 5
µA).
This test is performed
before the method b, 100% production test for partial discharge shown in the VDE 0884 Insulation Characteristics Table.
4. C
I
is the capacitance measured at pin 2 (V
I
).
5. t
PHL
propagation delay is measured from the 50% level on the falling edge of the V
I
signal to the logic switching level of the V
O
signal.
t
PLH
propagation delay is measured from the 50% level on the rising edge of the V
I
signal to the logic switching level of the V
O
signal.
6. The logic switching levels are 1.5 V for TTL signals (0-3 V) and 2.5 V for CMOS signals (0-5 V).
7. PWD is defined as |t
PHL
- t
PLH
|. %PWD (percent pulse width distortion) is equal to PWD in ns divided by symbol duration (bit length)
in ns.
8. Minimum data rate is calculated as follows: %PWD/PWD where %PWD is typically chosen by the design engineer (30% is common).
9. t
PSK
is equal to the worst case difference in t
PHL
and/or t
PLH
that will be seen between units at the same temperature, supply voltage,
and output load within the recommended operating condition range.
10. CM
H
is the maximum common mode voltage slew rate that can be sustained while maintaining V
O
> 3.2 V. CM
L
is the maximum
common mode voltage slew rate that can be sustained while maintaining V
O
< 0.8 V. The common mode voltage slew rates apply to
both rising and falling common mode voltage edges.
11. Unloaded dynamic power dissipation is calculated as follows: C
PD
• V
DD2
• f + I
DD
• V
DD
where f is switching frequency in MHz.
Figure 1. Recommended Application Circuit.
Figure 2. Recommended Printed Circuit Board Layout.
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AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
