LTC1485IS8#TR Linear Technology, LTC1485IS8#TR Datasheet - Page 3

• Manufacturer Part Number: LTC1485IS8#TR
• Description: IC TXRX BUS/LINE RS485 LP 8SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1485IS8#TR

• 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

S
TYPICAL PERFOR
V
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
The
range.
Note 1: Absolute Maximum Ratings are those values beyond which the
safety of the device cannot be guaranteed.
PLH
PHL
SKEW
r
ZH
ZL
LZ
HZ
PLH
PHL
SKEW
ZL
ZH
LZ
HZ
CC
, t
WITCHI
f
32
20
16
12
36
28
24
= 5V (Notes 2, 3), unless otherwise noted.
4
0
8
denotes specifications which apply over the operating temperature
0
Receiver Output Low Voltage vs
Output Current
T
A
PARAMETER
Driver Input to Output
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
Receiver Input to Output
| t
Differential Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
= 25 C
PLH
0.5
OUTPUT VOLTAGE (V)
U
– t
G C
PHL
1.0
|
HARA TERISTICS
1.5
W
2.0
A
C
1485 G01
U
CE
CONDITIONS
R
(Figures 2, 5)
R
(Figures 2, 5)
R
(Figures 2, 5)
R
(Figures 2, 5)
C
C
C
C
R
R
R
C
C
C
C
L
L
L
L
L
L
L
L
DIFF
DIFF
DIFF
DIFF
DIFF
DIFF
DIFF
C
= 100pF (Figures 4, 6) S2 Closed
= 100pF (Figures 4, 6) S1 Closed
= 15pF (Figures 4, 6) S1 Closed
= 15pF (Figures 4, 6) S2 Closed
= 15pF (Figures 3, 8) S1 Closed
= 15pF (Figures 3, 8) S2 Closed
= 15pF (Figures 3, 8) S1 Closed
= 15pF (Figures 3, 8) S2 Closed
HARA TERISTICS
–16
–18
–14
–12
–10
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
= 54 , C
–8
–6
–2
–4
0
5
Receiver Output High Voltage vs
Output Current
T
A
L1
L1
L1
L1
L1
L1
L1
= 25 C
C
= C
= C
= C
= C
= C
= C
= C
OUTPUT VOLTAGE (V)
L2
L2
L2
L2
L2
L2
L2
4
= 100pF
= 100pF
= 100pF
= 100pF
= 100pF (Figures 2, 7)
= 100pF (Figures 2, 7)
= 100pF (Figures 2, 7)
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.
Note 3: All typicals are given for V
3
1485 G02
2
3.8
3.4
4.6
4.4
4.2
4.0
3.6
3.2
3.0
4.8
–50
CC
Receiver Output High Voltage vs
Temperature
MIN
10
10
15
20
5
= 5V and T
I = 8mA
–25
0
TEMPERATURE ( C)
TYP
30
30
15
40
40
40
40
25
30
30
30
30
30
4
5
A
= 25 C.
25
LTC1485
50
MAX
50
50
10
25
70
70
70
70
50
55
15
45
45
45
45
75
100
UNITS
1485 G03
3
125
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns