Specifications

Sensors
Sensor communications interface
86 Maxim Industrial Solutions
Benefits
• Reduce board space by 25% with
integrated fault-protection circuitry
– Highest fault protection from an
integrated transceiver
– Fault protection up to ±80V
• Flexible configurations interface with
multiple systems
– Wide 3.3V to 5V supply range
– Interfaces with full- and half-duplex
systems
• High integration reduces bill of
materials (BOM) complexity and cost
– Integrated slew-rate limiting for
error-free data transmission
– True fail-safe operation
– Hot-swap operation
• Robust operation in harsh
environments
– ±15kV ESD protection
MAX13448E, MAX3440E–MAX3444E,
MAX13442E/MAX13443E/MAX13444E,
MAX3430
In applications where power and data are distributed over the same
cable, there is a potential for miswiring, cable shorts, or surges on the
communication bus. Maxim’s RS-485 transceivers offer fault protec-
tion up to ±80V
DC
.
Part V
CC
Supply (V) Configuration Fault Protection (V)
MAX13448E 3.3 to 5 Full ±80
MAX3440E–44E 5 Half ±60
MAX13442E/43E/44E 5 Half ±80
MAX3430 3.3 Half ±80
Fault-protected RS-485 transceivers make equipment more robust
Maxim’s RS-485 family offers high levels of flexibility and integration.
DI
DE
Y
Z
A
B
POLYSWITCH
LIMITERS
ZENERS
Reduces
external
components,
saves up to
25% board
space
D
DI
RO
DE
Y
Z
N.C.
R
A
GND
B
V
CC
MAX13448E
DI
RE
RE