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LTC1385IG#TR

Description
LTC1385 - 3.3V Low Power EIA/TIA-562 Transceiver; Package: SSOP; Pins: 20; Temperature Range: -40°C to 85°C
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size200KB,8 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC1385IG#TR Overview

LTC1385 - 3.3V Low Power EIA/TIA-562 Transceiver; Package: SSOP; Pins: 20; Temperature Range: -40°C to 85°C

LTC1385IG#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP, SSOP20,.3
Contacts20
Manufacturer packaging codeG
Reach Compliance Code_compli
ECCN codeEAR99
Other features2 RECEIVERS ACTIVE UNDER SHUTDOWN; EXTERNAL CHARGE PUMP
Differential outputNO
Number of drives2
High level input current maximum value0.00004 A
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-562; TIA-562
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length7.2 mm
Humidity sensitivity level1
Number of functions2
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing7.4 V
Maximum output low current0.0016 A
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)255
power supply3.3 V
Certification statusNot Qualified
Maximum receive delay800 ns
Number of receiver bits2
Maximum seat height2 mm
Maximum slew rate1 mA
Nominal supply voltage3.3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
maximum transmission delay3500 ns
width5.3 mm
LTC1385
3.3V Low Power
EIA/TIA-562 Transceiver
FEATURES
s
s
s
s
s
s
s
s
DESCRIPTIO
s
s
Operates from a Single 3.3V Supply
Low Supply Current: I
CC
= 200µA
I
CC
= 35µA in Driver Disable Mode
I
CC
= 0.2µA in Shutdown Mode
ESD Protection Over
±10kV
Uses Small Capacitors: 0.1µF
Operates to 120kBaud
Output Overvoltage Does Not Force Current
Back into Supplies
EIA/TIA-562 I/O Lines Can Be Forced to
±25V
Without Damage
Pin Compatible with LT1180A
The LTC
®
1385 is an ultra-low power, 2-driver/2-receiver
EIA / TIA-562 transceiver which operates from a single
3.3V supply. The charge pump requires only four space-
saving 0.1µF capacitors.
The transceiver operates in one of three modes: Normal,
Driver Disable or Shutdown. In the Normal mode, I
CC
is
only 200µA in the unloaded condition. In the Driver Disable
mode, the charge pump is turned off, the driver outputs
are forced into three-state, both receivers are kept active,
and I
CC
drops to 35µA. In the Shutdown mode, everything
is turned off and I
CC
drops to 0.2µA.
The LTC1385 is fully compliant with all data rate and
overvoltage EIA / TIA-562 specifications. The transceiver
can operate up to 120kbaud with a 1000pF, 3kΩ load.
Both driver outputs and receiver inputs can be forced to
±25V
without damage, and can survive multiple
±10kV
ESD strikes.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
Notebook Computers
Palmtop Computers
TYPICAL APPLICATIO
2-Drivers/2-Receivers with Shutdown
and Driver Disable
2
0.1µF
0.1µF
LOGIC INPUT
4
5
6 V
CC
12
V
CC
LOGIC INPUT
LOGIC OUTPUT
LOGIC OUTPUT
11
13
10
5k
5k
ON/OFF
18
1
DRIVER DISABLE
LTC1385 • TA01
Quiescent and Shutdown Supply Current
vs Temperature
600
1.2
1.0
SHUTDOWN CURRENT (µA)
17
LTC1385
3
7
300k
15
300k
8
14
9
VCC = 3.3V
500
QUIESCENT CURRENT (µA)
0.1µF
562 OUTPUT
0.1µF
400
300
200
100
0
–20
SHUTDOWN
CURRENT
0
20
40
TEMPERATURE (°C)
60
QUIESCENT
CURRENT
562 OUTPUT
562 INPUT
562 INPUT
16
TEST CONDITION: V
CC
= 3.3V
LTC1385 • TA02
U
0.8
0.6
0.4
0.2
0
80
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