adum1210 Analog Devices, Inc., adum1210 Datasheet - Page 16

• Manufacturer Part Number: adum1210
• Description: Dual-channel Digital Isolator
• Manufacturer: Analog Devices, Inc.

ADuM1210
In the case of unipolar ac or dc voltage, the stress on the
insulation is significantly lower. This allows operation at higher
working voltages while still achieving a 50-year service life. The
working voltages listed in Table 10 can be applied while main-
taining the 50-year minimum lifetime provided the voltage
conforms to either the unipolar ac or dc voltage case. Any cross-
insulation voltage waveform that does not conform to Figure 13
or Figure 14 should be treated as a bipolar ac waveform, and its
peak voltage should be limited to the 50-year lifetime voltage
value listed in Table 10.
Note that the voltage presented in Figure 13 is shown as
sinusoidal for illustration purposes only. It is meant to represent
any voltage waveform varying between 0 V and some limiting
value. The limiting value can be positive or negative, but the
voltage cannot cross 0 V.
Rev. C | Page 16 of 20
RATED PEAK VOLTAGE
RATED PEAK VOLTAGE
RATED PEAK VOLTAGE
0V
0V
0V
Figure 13. Unipolar AC Waveform
Figure 12. Bipolar AC Waveform
Figure 14. DC Waveform