LTC490IS8 Linear Technology, LTC490IS8 Datasheet - Page 3

• Manufacturer Part Number: LTC490IS8
• Description: IC TXRX RS485 LOWPWR DIFF 8-SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC490IS8

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SWITCHI G CHARACTERISTICS
operating temperature range, otherwise specifications are at T
SYMBOL
t
t
t
t
t
t
t
Note 1: Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
TYPICAL PERFOR A CE CHARACTERISTICS
PLH
PHL
SKEW
r
PLH
PHL
SKD
, t
–72
– 48
–96
–24
f
0
0
Driver Output High Voltage
vs Output Current
PARAMETER
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Receiver Input to Output
Receiver Input to Output
1
t
PLH
OUTPUT VOLTAGE (V)
U
– t
PHL
2
Differential Receiver Skew
3
T
W
A
LTC490 • TPC01
= 25 C
4
U
64
48
32
16
0
0
Driver Differential Output Voltage
vs Output Current
CONDITIONS
R
R
R
R
R
R
R
T
DIFF
DIFF
DIFF
DIFF
DIFF
DIFF
DIFF
A
= 25 C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
1
OUTPUT VOLTAGE (V)
A
= 25 C. V
The
L1
L1
L1
L1
L1
L1
L1
2
= C
= C
= C
= C
= C
= C
= C
Note 3: All typicals are given for V
L2
L2
L2
L2
L2
L2
L2
denotes the specificatiions which apply over the full
CC
= 100pF (Figures 2, 3)
= 100pF (Figures 2, 3)
= 100pF (Figures 2, 3)
= 100pF (Figures 2, 3)
= 100pF (Figures 2, 4)
= 100pF (Figures 2, 4)
= 100pF (Figures 2, 4)
3
= 5V 5%
LTC490 • TPC02
4
80
60
40
20
0
CC
0
Driver Output Low Voltage
vs Output Current
= 5V and Temperature = 25 C.
T
A
MIN
= 25 C
10
10
40
40
5
1
OUTPUT VOLTAGE (V)
TYP
30
30
70
70
13
5
5
2
MAX
150
150
LTC490
50
50
25
3
LTC490 • TPC03
UNITS
4
3
490fb
ns
ns
ns
ns
ns
ns
ns