AN729 データシートの表示（PDF） - Silicon Laboratories

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AN729

REPLACING TRADITIONAL OPTOCOUPLERS WITH Si87XX DIGITAL ISOLATORS

Silicon Laboratories 

AN729

Figure 4. Optocoupler Comparison EVB at 80 °C

Figure 4 uses the same setup as Figure 3, but, this time, operating at an elevated temperature. The blue waveform

is the output of the Si8710A, and the yellow waveform is the output of the HCPL-4506. As operating temperature

increases, the HCPL 4506 output falling edge is substantially slower, and the propagation delay worsens compared

to Figure 3. Note that the Si8710A output performance is essentially the same, as shown in Figure 3.

Rev. 0.1

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