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LTC1484IN8 Datasheet

  • LTC1484IN8

  • Low Power RS485 Transceiver with Receiver Fail-Safe

  • 16頁

  • LINER

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LTC1484
Low Power
RS485 Transceiver
with Receiver Fail-Safe
FEATURES
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
s
s
No Damage or Latchup to
鹵
15kV ESD (Human
Body Model), IEC-1000-4-2 Level 4 Contact (
鹵
8kV)
and Level 3 (
鹵
8kV) Air Gap Specifications
Guaranteed High Receiver Output State for Floating,
Shorted or Terminated Inputs with No Signal
Present
Drives Low Cost Residential Telephone Wires
Low Power: I
CC
= 700碌A Max with Driver Disabled
I
CC
= 900碌A Max for Driver Enable with No Load
20碌A Max Quiescent Current in Shutdown Mode
Single 5V Supply
鈥?7V to 12V Common Mode Range Permits
鹵7V
Ground Difference Between Devices on the Data Line
Power Up/Down Glitch-Free Driver Outputs
Up to 32 Transceivers on the Bus
Pin Compatible with the LTC485
Available in 8-Lead
MSOP,
PDIP and SO Packages
The LTC
廬
1484 is a low power RS485 compatible trans-
ceiver. In receiver mode, it offers a fail-safe feature which
guarantees a high receiver output state when the inputs
are left open, shorted together or terminated with no
signal present. No external components are required to
ensure the high receiver output state.
Both driver and receiver feature three-state outputs with
separate receiver and driver control pins. The driver
outputs maintain high impedance over the entire com-
mon mode range when three-stated. Excessive power
dissipation caused by bus contention or faults is pre-
vented by a thermal shutdown circuit that forces the
driver outputs into a high impedance state.
Enhanced ESD protection allows the LTC1484 to with-
stand
鹵15kV
(human body model), IEC-1000-4-2 level 4
(鹵8kV) contact and level 3 (鹵8kV) air discharge ESD
without latchup or damage.
The LTC1484 is fully specified over the commercial and
industrial temperature ranges and is available in 8-lead
MSOP, PDIP and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
Battery-Powered RS485/RS422 Applications
Low Power RS485/RS422 Transceiver
Level Translator
TYPICAL APPLICATIO
RS485 Interface
LTC1484
RO1
RE1
DE1
D
DI1
GND1
GND2
1484 TA01
LTC1484
V
CC1
V
CC2
B2
120鈩?/div>
120鈩?/div>
A2
D
R
RO2
RE2
DE2
DI2
B1
A1
Dl1
R
B2
A2
RO2
Dl1
鈫戔啌
Dl2 = 0
RE1 = RE2 = 0
U
Driving a 2000 Foot STP Cable
DE1 = V
CC
DE2 = 0
1484 TA01a
U
U
1

LTC1484IN8 產(chǎn)品屬性

  • LTC1484

  • 50

  • 集成電路 (IC)

  • 接口 - 驅動器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 1/1

  • RS422，RS485

  • 4.75 V ~ 5.25 V

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

LTC1484IN8相關型號PDF文件下載

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  • 英文版
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    DUAL MICROPOWER COMPARATOR
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    Dual Micropower Comparator
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    BANG-BANG Controller
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    BANG-BANG Controller
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    Window Comparator
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    Window Comparator
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    Window Comparator
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    2-Channel Differential Input 16-Bit No Latency DS ADC
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    2-Channel Differential Input 24-Bit No Latency DS ADC
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    2-Channel Differential Input 16-Bit No Latency DS ADC
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    Dual Precision Intrumentation Switched-Capacitor Building Bl...
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    Switched Capacitor Voltage Converter
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    Switched Capacitor Voltage Converter
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  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
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  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
    LINER [Lin...
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER [Lin...
  • 英文版
    Dual Micropower Chopper Stabilized Operational Amplifier wit...
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  • 英文版
    Dual Micropower Zero-Drift Operational Amplifier with Intern...
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