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LTC1690CS8

Description
Single Transmitter/Receiver RS-422/RS-485 8-Pin SOIC N
File Size180KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1690CS8 Overview

Single Transmitter/Receiver RS-422/RS-485 8-Pin SOIC N

LTC1690CS8 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
HTS8542.39.00.01
SVHCYes
SVHC Exceeds ThresholdYes
FunctionLine Transceiver
Data Rate5Mbps
Transmitter Communication TypeRS-422|RS-485
Receiver Communication TypeRS-422|RS-485
Interface StandardsRS-422|RS-485
Data Transmission TopologyMultidrop|Multipoint
Number of Transceivers1
Number of Transmitters1
Number of Receivers1
Transmitter Signal TypeDifferential
Receiver Signal TypeDifferential
Number of Drivers per Line1@RS-422|32@RS-485
Number of Receivers per Line10@RS-422|32@RS-485
Driving ModeNo
Number of Transmitter Enables0
Number of Receiver Enables0
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Power Supply TypeSingle
Typical Single Supply Voltage (V)5
Maximum Supply Current (mA)0.6
Supplier Temperature GradeCommercial
Pin Count8
Supplier PackageSOIC N
Standard Package NameSOP
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LTC1690
Differential Driver and
Receiver Pair with Fail-Safe
Receiver Output
FEATURES
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
s
No Damage or Latchup to
±
15kV ESD (Human Body
Model), IEC1000-4-2 Level 4 (
±
8kV) Contact and
Level 3 (
±
8kV) Air Discharge
Guaranteed High Receiver Output State for
Floating, Shorted or Terminated Inputs with No
Signal Present
Drives Low Cost Residential Telephone Wires
I
CC
= 600µA Max with No Load
Single 5V Supply
–7V to 12V Common Mode Range Permits
±7V
Ground Difference Between Devices on the Data Line
Power-Up/Down Glitch-Free Driver Outputs Permit
Live Insertion or Removal of Transceiver
Driver Maintains High Impedance with the Power Off
Up to 32 Transceivers on the Bus
Pin Compatible with the SN75179 and LTC490
Available in SO,
MSOP
and PDIP Packages
The LTC
®
1690 is a low power receiver/driver pair that is
compatible with the requirements of RS485 and RS422.
The receiver offers a fail-safe feature that guarantees a
high receiver output state when the inputs are left open,
shorted together or terminated with no signal present. No
external components are required to ensure the high
receiver output state.
Separate driver output and receiver input pins allow full
duplex operation. Excessive power dissipation caused by
bus contention or faults is prevented by a thermal shut-
down circuit which forces the driver outputs into a high
impedance state.
The LTC1690 is fully specified over the commercial and
industrial temperature ranges. The LTC1690 is available in
8-Pin SO, MSOP and PDIP packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Battery-Powered RS485/RS422 Applications
Low Power RS485/RS422 Transceiver
Level Translator
Line Repeater
TYPICAL APPLICATIO
LTC1690
5
D1
3
DRIVER
6
Z1
Y1
120Ω
LTC1690
A2
120Ω
7
B2
8
RECEIVER
2
R2
B2
D1
7
R1
2
RECEIVER
8
B1
120Ω
A1
Z2
120Ω
6
5
DRIVER
3
D2
Y2
1690 TA01
U
Driving a 1000 Foot STP Cable
A2
R2
1690 TA01a
U
U
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