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LTC486 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC486
Description  Ultralow Power RS485 Transceiver with Shutdown
PDF  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC486 Datasheet(HTML) 3 Page - Linear Technology

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LTC1481
1481fa
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tPLH
Driver Input to Output
RDIFF = 54Ω, CL1 = CL2 = 100pF,
q
10
30
60
ns
tPHL
Driver Input to Output
q
10
30
60
ns
tSKEW
Driver Output to Output
q
510
ns
tr, tf
Driver Rise or Fall Time
q
315
40
ns
tZH
Driver Enable to Output High
CL = 100pF (Figures 4, 6), S2 Closed
q
40
70
ns
tZL
Driver Enable to Output Low
CL = 100pF (Figures 4, 6), S1 Closed
q
40
70
ns
tLZ
Driver Disable Time from Low
CL = 15pF (Figures 4, 6), S1 Closed
q
40
70
ns
tHZ
Driver Disable Time from High
CL = 15pF (Figures 4, 6), S2 Closed
q
40
70
ns
tPLH
Receiver Input to Output
RDIFF = 54Ω, CL1 = CL2 = 100pF,
q
30
140
200
ns
tPHL
Receiver Input to Output
q
30
140
200
ns
tSKD
tPLH – tPHLDifferential Receiver Skew
q
13
ns
tZL
Receiver Enable to Output Low
CRL = 15pF (Figures 2, 8), S1 Closed
q
20
50
ns
tZH
Receiver Enable to Output High
CRL = 15pF (Figures 2, 8), S2 Closed
q
20
50
ns
tLZ
Receiver Disable from Low
CRL = 15pF (Figures 2, 8), S1 Closed
q
20
50
ns
tHZ
Receiver Disable from High
CRL = 15pF (Figures 2, 8), S2 Closed
q
20
50
ns
fMAX
Maximum Data Rate
q
2.5
Mbits/s
tSHDN
Time to Shutdown
DE = 0, RE =
q
50
200
600
ns
tZH(SHDN)
Driver Enable from Shutdown to Output High
CL = 100pF (Figures 4, 6), S2 Closed
q
40
100
ns
tZL(SHDN)
Driver Enable from Shutdown to Output Low
CL = 100pF (Figures 4, 6), S1 Closed
q
40
100
ns
tZH(SHDN)
Receiver Enable from Shutdown to Output High
CL = 15pF (Figures 2, 8), S2 Closed
q
3500
ns
tZL(SHDN)
Receiver Enable from Shutdown to Output Low
CL = 15pF (Figures 2, 8), S1 Closed
q
3500
ns
(Figures 3, 5)
(Figures 3, 7)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
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 VCC = 5V and TA = 25°C.
OUTPUT VOLTAGE (V)
0
70
60
50
40
30
20
10
0
3
1481 G01
12
4
5
TA = 25°C
Driver Differential Output Voltage
vs Output Current
TEMPERATURE (
°C)
–50
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
0
50
75
1481 G02
–25
25
100
125
RL = 54Ω
Driver Differential Output Voltage
vs Temperature
Driver Output Low Voltage
vs Output Current
OUTPUT VOLTAGE (V)
1
0
70
60
50
40
30
20
10
0
4
1481 G03
23
TA = 25°C
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V (Notes 2, 3) unless otherwise noted.
SWITCHI G CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS



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