LTC1483 Linear Technology, LTC1483 Datasheet

no-image

LTC1483

Manufacturer Part Number
LTC1483
Description
Ultra-Low Power RS485 Low EMI Transceiver with Shutdown
Manufacturer
Linear Technology
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1483CN8
Manufacturer:
LT
Quantity:
5 510
Part Number:
LTC1483CN8
Manufacturer:
SIEMENS
Quantity:
5 510
Part Number:
LTC1483CN8#PBF
Manufacturer:
LTC
Quantity:
599
Part Number:
LTC1483CS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LTC1483CS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC1483CS8
Quantity:
98
Part Number:
LTC1483CS8#PBF
Manufacturer:
LTC
Quantity:
1 908
Part Number:
LTC1483IN8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1483IS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1483IS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1483IS8#TR
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURE
A
TYPICAL
PPLICATI
Battery-Powered RS485/RS422 Applications
Low Power RS485/RS422 Transceiver
Level Translator
Low Power: I
I
1 A Quiescent Current in Shutdown Mode
Controlled Slew Rate Driver for Reduced EMI
Single 5V Supply
Drivers/Receivers Have 10kV ESD Protection
Ground Difference Between Devices on the Data Line
Thermal Shutdown Protection
Power Up/Down Glitch-Free Driver Outputs Permit
Live Insertion or Removal of Transceiver
Driver Maintains High Impedance in Three-State
or with the Power Off
Up to 32 Transceivers on the Bus
Pin Compatible with the LTC485
– 7V to 12V Common-Mode Range Permits 7V
CC
= 500 A Max with Driver Enabled, No Load
RO1
RO2
RE1
DE1
RE2
DE2
DI1
DI2
A
S
CC
O
PPLICATI
= 120 A Max with Driver Disabled
U
D
D
R
R
S
V
GND1
V
GND2
O
CC1
CC2
U
R
R
LTC1483 • TA01
TERM
TERM
Ultra-Low Power RS485 Low EMI
D
The LTC
ceiver designed for data transmission standard RS485
applications with extended common-mode range (– 7V to
12V). It will also meet the requirements of RS422. The
LTC1483 features output drivers with controlled slew rate,
decreasing the EMI radiated from the RS485 lines, and
improving signal fidelity with misterminated lines. The
CMOS design offers significant power savings over its
bipolar counterparts without sacrificing ruggedness against
overload or ESD damage. Typical quiescent current is only
80 A while operating and less than 1 A in shutdown.
The driver and receiver feature three-state outputs, with
the driver outputs maintaining high impedance over the
entire common-mode range. Excessive power dissipation
caused by bus contention or faults is prevented by a
thermal shutdown circuit which forces the driver outputs
into a high impedance state. The receiver has a fail-safe
feature which guarantees a high output state when the
inputs are left open. I/O pins are protected against multiple
ESD strikes of over 10kV.
The LTC1483 is fully specified over the commercial and
extended industrial temperature range and is available in
8-pin DIP and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ESCRIPTIO
Transceiver with Shutdown
A – B
RO
®
DI
1483 is an ultra-low power differential line trans-
U
LTC1483
1483 TA02
1

Related parts for LTC1483

LTC1483 Summary of contents

Page 1

... I/O pins are protected against multiple ESD strikes of over 10kV. The LTC1483 is fully specified over the commercial and extended industrial temperature range and is available in 8-pin DIP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. ...

Page 2

... Control Input Voltage ..................... – 0. Driver Input Voltage ....................... – 0. Driver Output Voltage ........................................... 14V Receiver Input Voltage .......................................... 14V Receiver Output Voltage ................ – 0. Operating Temperature Range LTC1483C........................................ LTC1483I .................................... – Lead Temperature (Soldering, 10 sec)................. 300 C ELECTRICAL C HARA TERISTICS C SYMBOL PARAMETER ...

Page 3

... Note 3: All typicals are given for V Receiver t – PLH PHL Temperature 100 125 –50 – TEMPERATURE ( C) 1483 G02 LTC1483 LTC1483 MIN TYP MAX UNITS 150 1200 ns 150 1200 ns 100 600 ns 150 1200 ns 100 1500 ns 100 1500 ns 150 1500 ns ...

Page 4

... A (Pin 6): Driver Output/Receiver Input. B (Pin 7): Driver Output/Receiver Input. V (Pin 8): Positive Supply. 4.75V < LTC1483 Receiving INPUTS *Shutdown mode for LTC1483 Driver Output High Voltage vs Output Current –10 –20 –30 –40 –50 –60 –70 –80 – ...

Page 5

... Figure 6. Driver Enable and Disable Times LTC1483 S1 TEST POINT LTC1483 • F02 Figure 2. Receiver Timing Test Load S1 500 OUTPUT LTC1483 • F04 Figure 4. Driver Timing Test Load 1.5V 1 PHL t SKEW 90% 10% LTC1483 • F05 0.5V 0. LTC1483 • F06 ...

Page 6

... ESD protection. Figure 9 shows the LTC1483 output stage while Figure 10 shows a conven- tional CMOS output stage. When the conventional CMOS output stage of Figure 10 enters a high impedance state, both the P-channel (P1) and the N-channel (N1) are turned off ...

Page 7

... Slew Rate The LTC1483 is designed for systems that are sensitive to electromagnetic radiation. The part features a slew rate limited driver that reduces high frequency electromag- netic emissions, while improving signal fidelity by reduc- ing reflections due to misterminated cables ...

Page 8

... TELEX W U than 50ns the part will not enter shutdown mode. Toggling either will wake the LTC1483 back up within 3 the slow slew rate driver was active immediately prior to shutdown, the supply current will not drop until the driver outputs have reached a steady state; this can take as long as 2 ...

Related keywords