LTC2856-1 Datasheet, PDF (6/20 Pages) Linear Technology – 20Mbps and Slew Rate Limited 15kV RS485/RS422 Transceivers

LTC2856-1/LTC2856-2
LTC2857-1/LTC2857-2
LTC2858-1/LTC2858-2
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime. High temperatures degrade operating lifetimes.
Operating lifetime is derated at temperatures greater than 105°C.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: Maximum data rate is guaranteed by other measured parameters
and is not tested directly.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions.
Overtemperature protection actives at a junction temperature exceeding
150°C. Continuous operation above the specified maximum operating
junction temperature may result in device degradation or failure.
TEST CIRCUITS
Y
GND _DI
+
OR
V_CC
DRIVER
V_–OD
Z
R
R₊
V_–OC
285678 F01
Figure 1. Driver DC Characteristics
Y
GND _DI
OR
DRIVER
V_CC
Z
I_OSD
+
–
–7V TO +12V
285678 F02
Figure 2. Driver Output Short-Circuit Current
I_IN
A OR B
V_IN ^+–
RECEIVER
B OR A
285678 F03
R_IN
=
V_IN
I_IN
Figure 3. Receiver Input Current and Input Resistance
285678fe
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