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LTC2802 Datasheet(PDF) 12 Page - Analog Devices

Part # LTC2802
Description  Single-Bus RS485/RS232 Multiprotocol Transceiver with Switchable Termination
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC2802 Datasheet(HTML) 12 Page - Analog Devices

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LTC2873
12
REV B
For more information www.analog.com
Figure 1. RS485 Driver DC Characteristics
Figure 2. RS485 Driver Output Current
Figure 3. RS485 Receiver Input Current and Resistance
Figure 4. RS485 Driver Timing Measurement
TEST CIRCUITS
2873 F01
DRIVER
DI
GND
OR
VL
A/DO
RL
RL
B/RI
VOD
+
–
VOC
+
–
2873 F02
DRIVER
A/DO OR
B/RI
DI
GND
OR
VL
B/RI
OR A/DO
VOUT
IOSD485
+–
2873 F03
RECEIVER
VIN
IIN485
RIN485 =
VIN
IIN485
+–
A/DO OR
B/RI
B/RI
OR A/DO
2873 F04
DRIVER
DI
A/DO
B/RI
RDIFF
CL
CL
tPLHD485
tSKEWD485
tPHLD485
tRD485
tFD485
90%
0V
VOD
½VOD
VL
0V
DI
B/RI
A/DO
A/RO – B/DI
10%
90%
0V
10%



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