LTC491IS#PBF Linear Technology, LTC491IS#PBF Datasheet - Page 4
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LTC491IS#PBF
Manufacturer Part Number
LTC491IS#PBF
Description
IC TXRX RS485 LOW POWER 14-SOIC
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet
1.LTC491CNPBF.pdf
(12 pages)
Specifications of LTC491IS#PBF
Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Data Rate
2.5Mbps
Interface Circuit Standard 1
RS-422/RS-485
Number Of Receivers
1
Number Of Transmitters
1
Number Of Transceivers
1
Data Transmission Topology
Multidrop/Multipoint
Receiver Signal Type
Differential
Transmitter Signal Type
Differential
Single Supply Voltage (typ)
5V
Single Supply Voltage (min)
4.75V
Single Supply Voltage (max)
5.25V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Supply Current
0.5mA
Power Supply Requirement
Single
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
14
Package Type
SOIC N
No. Of Drivers
1
Supply Voltage Range
4.75V To 5.25V
Driver Case Style
SOIC
No. Of Pins
14
Operating Temperature Range
-40°C To +85°C
Msl
MSL 1 - Unlimited
Termination Type
SMD
Rohs Compliant
Yes
Filter Terminals
SMD
Ic Interface Type
RS422, RS485
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
LTC491
4
TYPICAL PERFOR A CE CHARACTERISTICS
1.63
1.59
1.55
1.61
1.57
– 48
–96
–72
–24
2.3
2.1
1.9
1.7
1.5
0
–50
–50
0
Driver Output High Voltage
vs Output Current, T
TTL Input Threshold vs Temperature
Driver Differential Output Voltage
vs Temperature, R
1
OUTPUT VOLTAGE (V)
0
TEMPERATURE ( C )
0
TEMPERATURE ( C )
2
50
O
50
A
= 54
= 25 C
3
W
LTC491 • TPC04
LTC491 • TPC07
LTC491 • TPC01
100
100
4
U
5.0
4.0
3.0
2.0
1.0
7.0
6.0
5.0
4.0
3.0
48
64
32
16
0
–50
–50
0
Driver Differential Output Voltage
vs Output Current, T
Driver Skew vs Temperature
Receiver t
vs Temperature
1
OUTPUT VOLTAGE (V)
0
0
TEMPERATURE ( C )
TEMPERATURE ( C )
PLH
2
t
PHL
50
50
A
= 25 C
3
LTC491 • TPC02
LTC491 • TPC05
LTC491 • TPC08
100
100
4
350
340
330
320
310
0.8
0.6
0.4
0.2
60
80
40
20
0
0
–50
–50
0
Driver Output Low Voltage
vs Output Current, T
Supply Current vs Temperature
Receiver Output Low Voltage
vs Temperature at I = 8mA
1
OUTPUT VOLTAGE (V)
0
TEMPERATURE ( C )
0
TEMPERATURE ( C )
2
50
50
A
= 25 C
3
LTC491 • TPC03
LTC491 • TPC06
LTC491 • TPC09
100
100
4
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