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LTC490CS8#PBF

Description
RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size162KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
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LTC490CS8#PBF Overview

RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx

LTC490CS8#PBF Parametric

Parameter NameAttribute value
Brand NameAnalog Devices Inc
Is it lead-free?Contains lead
Is it Rohs certified?conform to
package instructionSOP,
Contacts8
Manufacturer packaging code05-08-1610 (S8)
Reach Compliance Codecompliant
Differential outputYES
Number of drives1
Input propertiesDIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-422; EIA-485
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Output characteristicsTOTEM-POLE
Output polarityCOMPLEMENTARY
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum receive delay150 ns
Number of receiver bits1
Maximum seat height1.75 mm
Maximum supply voltage5.25 V
Minimum supply voltage4.75 V
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
maximum transmission delay50 ns
width3.9 mm
Base Number Matches1
LTC490
Differential Driver and
Receiver Pair
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
s
s
s
s
s
Low Power: I
CC
= 300µA Typical
Designed for RS485 or RS422 Applications
Single 5V Supply
– 7V to 12V Bus Common Mode Range
Permits
±7V
Ground Difference Between Devices
on the Bus
Thermal Shutdown Protection
Power-Up/-Down Glitch-Free Driver Outputs Permit
Live Insertion or Removal of Package
Driver Maintains High Impedance with the
Power Off
Combined Impedance of a Driver Output and
Receiver Allows up to 32 Transceivers on the Bus
70mV Typical Input Hysteresis
28ns Typical Driver Propagation Delays with
5ns Skew for 2.5MB Operation
Pin Compatible with the SN75179
Available in 8-Lead PDIP and SO Packages
The LTC
®
490 is a low power differential bus/line trans-
ceiver designed for multipoint data transmission standard
RS485 applications with extended common mode range
(12V to –7V). It also meets the requirements of RS422.
The CMOS design offers significant power savings over its
bipolar counterpart without sacrificing ruggedness against
overload or ESD damage.
Excessive power dissipation caused by bus contention or
faults is prevented by a thermal shutdown circuit which
forces the driver outputs into a high impedance state. The
receiver has a fail safe feature which guarantees a high
output state when the inputs are left open.
Both AC and DC specifications are guaranteed from 0°C to
70°C and 4.75V to 5.25V supply voltage range.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
Low Power RS485/RS422 Transceiver
Level Translator
TYPICAL APPLICATIO
LTC490
5
D
3
DRIVER
120Ω
6
4000 FT BELDEN 9841
120Ω
RECEIVER
R
8
R
2
RECEIVER
120Ω
7
4000 FT BELDEN 9841
120Ω
DRIVER
D
U
LTC490
LTC490 • TA01
U
U
490fb
1

LTC490CS8#PBF Related Products

LTC490CS8#PBF LTC490IS8 LTC490IS8#TR LTC490CS8#TRPBF LTC490IS8#TRPBF LTC490IN8 LTC490CS8#TR LTC490CS8 LTC490CN8#PBF
Description RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx RS-422/RS-485 Interface IC LTC490 - Differential Driver and Receiver Pair RS-422/RS-485 Interface IC LTC490 - Differential Driver and Receiver Pair RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx RS-422/RS-485 Interface IC LTC490 - Differential Driver and Receiver Pair RS-422/RS-485 Interface IC LTC490 - Differential Driver and Receiver Pair RS-422/RS-485 Interface IC LTC490 - Differential Driver and Receiver Pair RS-422/RS-485 Interface IC Low Power RS485 Tx/Rx
Is it Rohs certified? conform to incompatible incompatible conform to conform to incompatible incompatible incompatible conform to
package instruction SOP, SOP, SOP, SOP, SOP, DIP, SOP, SOP, DIP,
Reach Compliance Code compliant not_compliant not_compliant compliant compliant not_compliant not_compliant not_compliant compliant
Differential output YES YES - YES YES YES YES YES YES
Number of drives 1 1 - 1 1 1 1 1 1
Input properties DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER - DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type LINE TRANSCEIVER LINE TRANSCEIVER - LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Interface standards EIA-422; EIA-485 EIA-422; EIA-485 - EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485
JESD-30 code R-PDSO-G8 R-PDSO-G8 - R-PDSO-G8 R-PDSO-G8 R-PDIP-T8 R-PDSO-G8 R-PDSO-G8 R-PDIP-T8
JESD-609 code e3 e0 - e3 e3 e0 e0 e0 e3
length 4.9 mm 4.9 mm - 4.9 mm 4.9 mm - 4.9 mm 4.9 mm -
Humidity sensitivity level 1 1 - 1 1 1 1 1 1
Number of functions 1 1 - 1 1 1 1 1 1
Number of terminals 8 8 - 8 8 8 8 8 8
Maximum operating temperature 70 °C 85 °C - 70 °C 85 °C 85 °C 70 °C 70 °C 70 °C
Output characteristics TOTEM-POLE TOTEM-POLE - TOTEM-POLE TOTEM-POLE TOTEM-POLE TOTEM-POLE TOTEM-POLE TOTEM-POLE
Output polarity COMPLEMENTARY COMPLEMENTARY - COMPLEMENTARY COMPLEMENTARY COMPLEMENTARY COMPLEMENTARY COMPLEMENTARY COMPLEMENTARY
Package body material PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP - SOP SOP DIP SOP SOP DIP
Package shape RECTANGULAR RECTANGULAR - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE - SMALL OUTLINE SMALL OUTLINE IN-LINE SMALL OUTLINE SMALL OUTLINE IN-LINE
Peak Reflow Temperature (Celsius) 260 235 - 260 260 235 235 235 NOT SPECIFIED
Certification status Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum receive delay 150 ns 150 ns - 150 ns 150 ns 150 ns 150 ns 150 ns 150 ns
Number of receiver bits 1 1 - 1 1 1 1 1 1
Maximum seat height 1.75 mm 1.75 mm - 1.75 mm 1.75 mm 3.937 mm 1.75 mm 1.75 mm 3.937 mm
Maximum supply voltage 5.25 V 5.25 V - 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V 5.25 V
Minimum supply voltage 4.75 V 4.75 V - 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V 4.75 V
Nominal supply voltage 5 V 5 V - 5 V 5 V 5 V 5 V 5 V 5 V
surface mount YES YES - YES YES NO YES YES NO
technology CMOS CMOS - CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level COMMERCIAL INDUSTRIAL - COMMERCIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface MATTE TIN Tin/Lead (Sn/Pb) - MATTE TIN Matte Tin (Sn) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) MATTE TIN (SN)
Terminal form GULL WING GULL WING - GULL WING GULL WING THROUGH-HOLE GULL WING GULL WING THROUGH-HOLE
Terminal pitch 1.27 mm 1.27 mm - 1.27 mm 1.27 mm 2.54 mm 1.27 mm 1.27 mm 2.54 mm
Terminal location DUAL DUAL - DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 20 - 30 30 20 20 20 NOT SPECIFIED
maximum transmission delay 50 ns 50 ns - 50 ns 50 ns 50 ns 50 ns 50 ns 50 ns
width 3.9 mm 3.9 mm - 3.9 mm 3.9 mm 7.62 mm 3.9 mm 3.9 mm 7.62 mm
Maker - ADI ADI ADI ADI ADI ADI ADI -
ECCN code - EAR99 EAR99 - - EAR99 EAR99 EAR99 -
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