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LTC2804IGN-1#TR

Description
RS-232 Interface IC LTC2804 - 1.8V to 5.5V RS-232 Single and Dual Transceivers
Categorysemiconductor    Analog mixed-signal IC   
File Size366KB,18 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC2804IGN-1#TR Overview

RS-232 Interface IC LTC2804 - 1.8V to 5.5V RS-232 Single and Dual Transceivers

LTC2804IGN-1#TR Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerADI
Product CategoryRS-232 Interface IC
RoHSNo -; RoHS Version Available
Mounting StyleSMD/SMT
Package / CaseSSOP-16
Height1.75 mm
Pd - Power Dissipation8 mW
LTC2801/LTC2802/
LTC2803/LTC2804
1.8V to 5.5V RS-232
Single and Dual Transceivers
FeatureS
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deScriPtion
The LTC
®
2801/LTC2802/LTC2803/LTC2804 are single and
dual RS-232 transceivers in narrow SSOP and chip-scale
DFN packages. All operate over a supply range of 1.8V to
5.5V, which permits operation directly from two alkaline,
NiCd or NiMH cells. An integrated DC-to-DC converter
generates power supplies for driving RS-232 levels. A
logic supply pin allows easy interfacing with different logic
levels independent of the DC-DC supply.
These parts are compatible with the TIA/EIA-232-F stan-
dard. Driver outputs are protected from overload and can
be shorted to ground or up to ±15V without damage. To
extend battery life, receivers can be kept active, operating
at reduced speed, with only 15µA current. In shutdown
mode, current is further reduced to 1µA.
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1.8V to 5.5V Supply Voltage
Single and Dual Transceivers
High-Speed Operation
1Mbps for 250pF/3kΩ Load (LTC2802, LTC2804)
250kbps for 1nF/3kΩ Load
100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load
Low-Power 1µA Shutdown and 15µA Receivers-
Active Modes
No Damage or Latchup to ±10kV ESD on RS-232
Interface
Logic Supply Pin for Easy Level-Shifting to UART or
Microprocessor
Low-Latency Output Enable Allows Line Sharing and
Half-Duplex Operation
True RS-232 Compliant Output Levels
Small Footprint:
LTC2801/LTC2802 4mm
×
3mm DFN Package
LTC2803/LTC2804 Narrow SSOP-16 and
5mm
×
3mm DFN Packages
Product Selection Guide
DRIVERS AND MAXIMUM
PART NUMBER RECEIVERS DATA RATE
LTC2801
LTC2802
LTC2803
LTC2803-1
LTC2804
LTC2804-1
1+1
1+1
2+2
2+2
2+2
2+2
1Mbps
0.25Mbps
1Mbps
1Mbps
MODES*
SD, RA, DD, AO
SD, AO
SD, RA, DD, AO
SD, AO
PACKAGE
DFN-12
DFN-12
DFN-16
SSOP-16
DFN-16
SSOP-16
0.25Mbps SD, RA, DD, AO
0.25Mbps SD, RA, DD, AO
aPPlicationS
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Battery-Powered Systems
Computers and Consumer Electronics
Diagnostic Ports
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.
*SD = Shutdown, RA = Receiver Active (low power), DD = Drivers
Disabled, AO = All On
tyPical aPPlication
1.8V TO 5.5V
L1
10µH
LTC2802 at 1.8V and 1Mbps
SW
C4
1µF
V
CC
V
L
PS
LTC2802
C1
220nF
2V/DIV
TIN
CAP
5V/DIV
TOUT
TOUT
OFF ON
MODE
TIN
ROUT
RIN
2V/DIV
ROUT
GND
V
DD
C2
1µF
V
EE
C3
1µF
2801 TA01a
V
CC
= V
L
= 1.8V 400ns/DIV
WRAPPING DATA
TOUT LOAD = 250pF + RIN
ROUT LOAD = 150pF
2801 TA01b
2801234fe


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