The ISO8200BQ is a "galvanic isolated octal high-side smart power solid state-relay", where High-Side means that the output can only be driven to VCC, i.e. the supply rail. There is a built-in pull-down resistor, typically 210 kOhms, which allows some protection functions but is not strong enough to drive the output really low. So all in all it is not a push-pull driver.
Usually this device is used to switch loads which are connected to ground, such as relays etc.
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/Peter
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