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LTC487CS Datasheet

  • LTC487CS

  • Quad Low Power RS485 Driver

  • 8頁

  • LINER

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LTC487
Quad Low Power
RS485 Driver
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
s
s
Very Low Power: I
CC
= 110碌A(chǔ) Typ
Designed for RS485 or RS422 Applications
Single 5V Supply
鈥?7V to 12V Bus Common-Mode Range Permits
鹵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,
碌A(chǔ)96174,
and DS96F174
The LTC487
廬
is a low power differential bus/line driver
designed for multipoint data transmission standard RS485
applications with extended common-mode range (鈥?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 shut-
down circuit which forces the driver outputs into a high
impedance state.
Both AC and DC specifications are guaranteed from 0擄C to
70擄C (Commercial), 鈥?40擄C to 85擄C (Industrial) and over
the 4.75V to 5.25V supply voltage range.
APPLICATI
s
s
S
Low Power RS485/RS422 Drivers
Level Translator
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.
TYPICAL APPLICATI
10k
EN 12
4
2
DI
1
DRIVER
3
1/4 LTC487
120鈩?/div>
4000 FT BELDEN 9841
120鈩?/div>
1
2
EN 12
CABLE LENGTH (FT)
4
3
RECEIVER
RO
1/4 LTC489
100
LTC487 鈥?TA01
U
RS485 Cable Length Specification*
1k
10
10k
100k
1M
2.5M
10M
DATA RATE (bps)
LTC487 鈥?TA09
UO
UO
* APPLIES FOR 24 GAUGE, POLYETHYLENE
DIELECTRIC TWISTED PAIR
1

LTC487CS相關(guān)型號PDF文件下載

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    描述
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  • 英文版
    Low Power RS485 Interface Transceiver
    LINER
  • 英文版
    Low Power RS485 Interface Transceiver
    Linear
  • 英文版
    Quad Low Power RS485 Driver
    LINER
  • 英文版
    Quad Low Power RS485 Driver
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