LTC491IS#PBF Linear Technology, LTC491IS#PBF Datasheet - Page 5
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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
TEST CIRCUITS
D
DRIVER
UNDER TEST
Figure 2. Driver/Receiver Timing Test Circuit
RECEIVER
OUTPUT
OUTPUT
Figure 3. Receiver Timing Test Load
Y
Z
Figure 4. Driver Timing Test Load
Figure 1. Driver DC Test Load
R
DIFF
Y
Z
V
OD2
500
C
C
L
L
LTC491 • F01
R
R
1k
C
C
L1
L2
S1
S2
V
OC
S1
S2
LTC491 • F04
A
B
LTC491 • F03
1k
RECEIVER
V
V
CC
CC
LTC491 • F02
15pF
R
LTC491
5
491fa