
IL710
Application Diagrams
Isolated PROFIBUS / RS-485
NVE offers a unique line of single-chip isolated PROFIBUS/RS-485 transceivers, but as this circuit illustrates, IL710 isolators can also be used
as part of multi-chip designs using non-isolated PROFIBUS transceivers:
Isolation
Boundary
RS-485 Truth Table
TXD RTS
1 0
0 0
1 1
0 1
A
Z
Z
1
0
B
Z
Z
0
1
RXD
X
X
1
0
IL710
IL710
ISL8485
Note:
V DD 1 and V ISO should be decoupled with
10 nF ceramic capacitors at IL710
supply pins.
IL710
7
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
?NVE Corporation