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Does the 976A have the open-circuit fail-safe feature?

April 26, 2017fail-safe feature

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Does the 976A have the open-circuit fail-safe feature?

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Yes. If an enabled receiver’s inputs are left open-circuited (floating) there are internal pull-up and -down resistors to take the output to a high level. This can be seen in the equivalent input schematics of the data sheet.