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LTC487ISW#TR

Description
IC driver rs485 quad LP 16soic
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size173KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC487ISW#TR Overview

IC driver rs485 quad LP 16soic

LTC487ISW#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionLEAD FREE, PLASTIC, SOP-16
Contacts16
Manufacturer packaging codeSW
Reach Compliance Code_compli
ECCN codeEAR99
Differential outputYES
Number of drives4
High level input current maximum value0.000002 A
Input propertiesSTANDARD
Interface integrated circuit typeLINE DRIVER
Interface standardsEIA-422; EIA-485
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length10.299 mm
Humidity sensitivity level1
Number of functions4
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing1.5 V
Output characteristics3-STATE
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)255
power supply5 V
Certification statusNot Qualified
Maximum receive delay
Maximum seat height2.642 mm
Maximum supply voltage5.25 V
Minimum supply voltage4.75 V
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
maximum transmission delay50 ns
width7.493 mm
LTC487
Quad Low Power
RS485 Driver
FeaTures
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DescripTion
The LTC
®
487 is a low power differential bus/line driver
designed for multipoint data transmission standard RS485
applications with extended common mode range (– 7V to
12V). It also meets RS422 requirements.
The CMOS design offers significant power savings over
its bipolar counterpart without sacrificing ruggedness
against overload or ESD damage.
The driver features three-state outputs, with the driver
outputs maintaining high impedance over the entire com-
mon mode range. 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.
Both AC and DC specifications are guaranteed from 0°C to
70°C (Commercial), –40°C to 85°C (Industrial) and over
the 4.75V to 5.25V supply voltage range.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n
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Very Low Power: I
CC
= 110µA Typ
Designed for RS485 or RS422 Applications
Single 5V Supply
– 7V to 12V Bus Common Mode Range Permits ±7V
GND Difference Between Devices on the Bus
Thermal Shutdown Protection
Power-Up/Down Glitch-Free Driver Outputs Permit
Live Insertion/Removal of Package
Driver Maintains High Impedance in Three-State or
with the Power Off
28ns Typical Driver Propagation Delays with
5ns Skew
Pin Compatible with the SN75174, DS96174,
µA96174, and DS96F174
applicaTions
n
n
Low Power RS485/RS422 Drivers
Level Translator
Typical applicaTion
RS485 Cable Length Specification*
10k
EN 12
4
2
DI
1
DRIVER
3
1/4 LTC487
LTC487 TA01
EN 12
4
2
120
4000 FT BELDEN 9841
120
1
RECEIVER
3
RO
CABLE LENGTH (FT)
1k
1/4 LTC489
100
10
10k
100k
1M
2.5M
10M
DATA RATE (bps)
LTC487 TA09
* APPLIES FOR 24 GAUGE, POLYETHYLENE
DIELECTRIC TWISTED PAIR
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