MAX14852 Datasheet, PDF (17/22 Pages) Maxim Integrated Products – 2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex

MAX14852/MAX14854
2.75kV_RMS Isolated 500kbps/25Mbps Full-Duplex
RS-485/RS-422 Transceivers
with ±35kV ESD Protection
Master
RXD
Y
RE
TXD
DE
Z
B
A
RS-485 TRANSCEIVER
INTEGRATED
ISOLATION
BARRIER
Slave
DE TXD RE RXD
Figure 9. Typical Isolated Full-Duplex RS-485/RS-422 Application
Slave
A
RXD
RE
120Ω
TXD
B
DE
B
A
RS-485 TRANSCEIVER
MAX14852
MAX14854
DE TXD RE RXD
Slave
0.1uF
VDDA
1uF
1
1
RXD
RE
TXD
DE
VLDO
0.1uF 1uF
MAX14852
MAX14854
22
LDO
VDDB
1uF 0.1uF
22
Y
Z
A
120Ω
B
1
2
Figure 10. Typical Isolated Point-to-Point Application
VDDB
0.1uF 1uF
VLDO
1uF 0.1uF
3
3
LDO
MAX14852
MAX14854
33
A
120Ω
B
Y
Z
3
4
VDDA
1uF 0.1uF
44
RXD
RE
TXD
DE
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