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LT1180AIN#PBF

Description
IC DRVR/RCVR RS232 5V DUAL 18DIP
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size207KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LT1180AIN#PBF Overview

IC DRVR/RCVR RS232 5V DUAL 18DIP

LT1180AIN#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeDIP
package instructionDIP, DIP18,.3
Contacts18
Manufacturer packaging codeN
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresEXTERNAL CHARGE PUMP
Differential outputNO
Number of drives2
High level input current maximum value0.00002 A
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232
JESD-30 codeR-PDIP-T18
JESD-609 codee3
Humidity sensitivity level1
Number of functions2
Number of terminals18
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing10 V
Output characteristics3-STATE
Maximum output low current0.0016 A
Output polarityINVERTED
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP18,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
Maximum receive delay600 ns
Number of receiver bits2
Maximum seat height3.937 mm
Maximum slew rate16 mA
Nominal supply voltage5 V
surface mountNO
technologyBIPOLAR
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
maximum transmission delay1300 ns
width7.62 mm
LT1180A/LT1181A
Low Power 5V RS232
Dual Driver/Receiver with
0.1µF Capacitors
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
s
s
s
s
ESD Protection over
±10kV
Uses Small Capacitors: 0.1µF
120kBaud Operation for R
L
= 3k, C
L
= 2500pF
250kBaud Operation for R
L
= 3k, C
L
= 1000pF
Outputs Withstand
±30V
Without Damage
CMOS Comparable Low Power: 40mW
Operates from a Single 5V Supply
Rugged Bipolar Design
Outputs Assume a High Impedance State When Off
or Powered Down
Meets All RS232 Specifications
Available With or Without Shutdown
Absolutely No Latch-up
Available in SO Package
APPLICATIO S
s
s
s
s
s
Portable Computers
Battery-Powered Systems
Power Supply Generator
Terminals
Modems
The LT
®
1180A/LT1181A are dual RS232 driver/receiver
pairs with integral charge pump to generate RS232 volt-
age levels from a single 5V supply. These circuits feature
rugged bipolar design to provide operating fault tolerance
and ESD protection unmatched by competing CMOS
designs. Using only 0.1µF external capacitors, these cir-
cuits consume only 40mW of power, and can operate to
120k baud even while driving heavy capacitive loads. New
ESD structures on the chip allow the LT1180A/LT1181A to
survive multiple
±10kV
strikes, eliminating the need for
costly TransZorbs
®
on the RS232 line pins. The LT1180A/
LT1181A are fully compliant with EIA RS232 standards.
Driver outputs are protected from overload, and can be
shorted to ground or up to
±30V
without damage. During
shutdown or power-off conditions, driver and receiver
outputs are in a high impedance state, allowing line
sharing.
The LT1181A is available in 16-pin DIP and SO packages.
The LT1180A is supplied in 18-pin DIP and SO packages
for applications which require shutdown.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TransZorb is a registered trademark of General Instruments, GSI
TYPICAL APPLICATIO
+
0.1µF
2
4
LT1180A
17
3
5V INPUT
+
0.1µF
7
0.1µF
15
8
14
5k
10
18
5k
9
16
V
+
OUT
DRIVER
OUTPUT
R
L
= 3k
C
L
= 2500pF
+
0.1µF
5
6
12
V
OUT
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
LOGIC
INPUTS
11
13
RECEIVER
OUTPUT
R
C
L
= 50pF
INPUT
LOGIC
OUTPUTS
RS232 INPUT
ON/OFF
LT1180A • TA01
U
Output Waveforms
LT1180A • TA02
U
+
U
11801afb
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