Datasheet

LTC2870/LTC2871
42
28701fb
For more information www.linear.com/LTC2870
 LINEAR TECHNOLOGY CORPORATION 2010
LT 0817 REV B • PRINTED IN USA
www.linear.com/LTC2870
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LTC2873 RS232/RS485 Single-Bus Multiprotocol Transceiver
with Integrated Termination
One RS232 Transceiver and One RS485 Transceiver on the Same Bus Pins. 3V
to 5.5V Supply with 1.7V to 5.5V Logic Interface
LTC2872 RS232/RS485 Dual Multiprotocol Transceiver with
Integrated Termination
Four RS232 Transceivers and Two RS485 Transceivers. 3V to 5.5V Supply with
1.7V to 5.5V Logic Interface, Automatic Selection of Termination Resistors,
Duplex Control, Logic Supply Pin
LTC1334 Single 5V RS232/RS485 Multiprotocol Transceiver Dual Port, Single 5V Supply, Configurable, 10kV ESD
LTC1387 Single 5V RS232/RS485 Multiprotocol Transceiver Single Port, Configurable
LTC2801/LTC2802/
LTC2803/LTC2804
1.8V to 5.5V RS232 Single and Dual Transceivers Up to 1Mbps, 10kV ESD, Logic Supply Pin, Tiny DFN Packages
LTC2854/LTC2855 3.3V 20Mbps RS485 Transceiver with Integrated
Switchable Termination
3.3V Supply, Integrated, Switchable, 120Ω Termination Resistor, 25kV ESD
LTC2859/LTC2861 20Mbps RS485 Transceiver with Integrated
Switchable Termination
5V Supply, Integrated, Switchable, 120Ω Termination Resistor, 15kV ESD
LTM2881 Complete Isolated RS485/RS422 µModule
Transceiver + Power
20Mbps, 2500V
RMS
Isolation with Integrated DC/DC Converter, Integrated,
Switchable, 120Ω Termination Resistor, 15kV ESD
LTM2885 6500V
RMS
Isolated RS485/RS232 µModule
Transceiver + Power
20Mbps, 6500V
RMS
Isolation with Integrated DC/DC Converter, Integrated
Switchable 120Ω Termination Resistor, ±15kV ESD, 5V Supply
LTM2882 Dual Isolated RS232 µModule Transceiver + Power 1Mbps, 2500V
RMS
Isolation with Integrated DC/DC Converter, ±10kV ESD
Quad RS232 Transceiver with RS485 Communication Over Half-Duplex, Terminated Bus
28701 TA02
3V TO 5.5V
3.3V
V
L
V
CC
SW
22µH
470nF
CAP
TE485
LTC2871
LTC2854
LTC2804
GND
V
CC
TE
DI
RO
V
CC
V
L
CAP
RO
DIN1
ROUT1
B
A
DIN2
ROUT2
DOUT1
RIN1
DOUT2
RIN2
DI
120Ω
Z
Y
B
A
120Ω
120Ω
2.2µF
2.2µF 2.2µF
0.1µF
GND V
DD
V
EE
T1IN
ROUT1
T2IN
ROUT2
T1OUT1
SW
RIN1
T2OUT
RIN2
GNDV
DD
V
EE
LOGIC INPUT PINS NOT SHOWN ARE
TIED TO A VALID LOGIC STATE.
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