LT1483 Linear Technology, LT1483 Datasheet - Page 3

• Manufacturer Part Number: LT1483
• Description: Ultra-Low Power RS485 Low EMI Transceiver with Shutdown
• Manufacturer: Linear Technology

SWITCHI G CHARACTERISTICS
The
temperature range.
Note 1: Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
TYPICAL PERFORMANCE CHARACTERISTICS
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
f
t
t
t
t
t
PLH
PHL
SKEW
r
ZH
ZL
LZ
HZ
PLH
PHL
SKD
ZL
ZH
LZ
HZ
MAX
SHDN
ZH(SHDN)
ZL(SHDN)
ZH(SHDN)
ZL(SHDN)
, t
350
300
250
200
150
100
f
50
0
–50
denotes specifications which apply over the full operating
Supply Current vs Temperature
–25
DRIVER DISABLED
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
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
Maximum Data Rate
Time to Shutdown
Driver Enable from Shutdown to Output High
Driver Enable from Shutdown to Output Low
Receiver Enable from Shutdown to Output High
Receiver Enable from Shutdown to Output Low
DRIVER ENABLED
t
PLH
0
U
TEMPERATURE ( C)
– t
25
PHL
WITH DRIVER ENABLED
THERMAL SHUTDOWN
50
Differential Receiver Skew
75
100
125
W
150
1483 G01
U
175
14
12
10
8
6
4
2
0
–50
Receiver t
Temperature
(Figures 3, 5)
CONDITIONS
R
C
C
C
C
C
C
C
C
R
(Figures 3, 7)
C
C
DE = 0, RE =
C
C
–25
L
L
L
L
RL
RL
RL
RL
L
L
L
L
DIFF
DIFF
= 100pF (Figures 4, 6), S2 Closed
= 100pF (Figures 4, 6), S1 Closed
= 15pF (Figures 4, 6), S1 Closed
= 15pF (Figures 4, 6), S2 Closed
= 100pF (Figures 4, 6), S2 Closed
= 100pF (Figures 4, 6), S1 Closed
= 15pF (Figures 2, 8), S2 Closed
= 15pF (Figures 2, 8), S1 Closed
= 15pF (Figures 2, 8), S1 Closed
= 15pF (Figures 2, 8), S2 Closed
= 15pF (Figures 2, 8), S1 Closed
= 15pF (Figures 2, 8), S2 Closed
= 54 , C
= 54 , C
V
CC
0
TEMPERATURE ( C)
PLH
= 5V, (Notes 2, 3) unless otherwise noted.
25
– t
L1
L1
Note 2: All currents into device pins are positive; all currents out ot device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: All typicals are given for V
PHL
= C
= C
50
L2
L2
= 100pF,
= 100pF,
vs
75
100
1483 G02
125
70
60
50
40
30
20
10
0
MIN
150
150
150
100
100
150
150
250
CC
30
30
50
0
Driver Differential Output Voltage
vs Output Current
= 5V and T
1
LTC1483
OUTPUT VOLTAGE (V)
TYP
100
200
140
140
13
20
20
20
20
A
= 25 C.
2
LTC1483
MAX
1200
1200
1200
1500
1500
1500
1500
2000
2000
3500
3500
3
600
600
200
200
50
50
50
50
T
A
4
= 25 C
kbits/s
UNITS
1483 G03
3
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5