DS75107 Datasheet, PDF (6/9 Pages) National Semiconductor (TI) – Dual Line Receiver

Typical Applications (Continued)
Standard Devices
Standard Devices
DS009446-10
This would be a problem in specific systems which might
possibly have the transmission lines biased to some poten-
tial greater than 1.4V. Since this is not a widespread applica-
tion problem, both the “A” and standard devices will be avail-
able. The ratings and characteristic specifications of the “A”
devices are the same as those of the standard devices.
DS009446-8
The input protection diodes are useful in certain party-line
systems which may have multiple V+ power supplies and, in
which case, may be operated with some of the V+ supplies
turned off. In such a system, if a supply is turned off and al-
lowed to go to ground, the equivalent input circuit connected
to that supply would be as follows:
“A” Devices
DS009446-9
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