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I am working with HCPL3700 to sense mains.

In the datasheet it has these symbols:

enter image description here

What are those symbols? What are their functions?

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    \$\begingroup\$ The overlapping circles are a current source. Partial duplicate: electronics.stackexchange.com/q/56670/2028 \$\endgroup\$
    – JYelton
    Commented Oct 20, 2021 at 22:01
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    \$\begingroup\$ they are actually block diagram symbols ... they each represent multiple components \$\endgroup\$
    – jsotola
    Commented Oct 20, 2021 at 23:52
  • \$\begingroup\$ Thanks @jsotola! I was missing that and looking for one component for each :S \$\endgroup\$ Commented Oct 21, 2021 at 8:15

1 Answer 1

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The square with arrows is hysteresis, as evidenced by some of the electrical characteristics of the device.

enter image description here

enter image description here

The overlapping circles are a current source.

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