參數(shù)資料
型號： LTC1482CS8
廠商： LINEAR TECHNOLOGY CORP
元件分類： 通用總線功能
英文描述： Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe
中文描述： LINE TRANSCEIVER, PDSO8
封裝： 0.150 INCH, PLASTIC, SOP-8
文件頁數(shù)： 3/16頁
文件大小： 262K
代理商： LTC1482CS8
3
LTC1482
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 5V
±
5% (Notes 2 and 3) unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
THCD
V
TH
V
OH
PARAMETER
Differential Input Threshold Voltage for CD = 1
Receiver Input Hysteresis
CD Output High Voltage
RO Output High Voltage
RO and CD Output Low Voltage
Three-State (High Impedance) Receiver Output
Current in Shutdown
Receiver Input Resistance
Supply Current
CONDITIONS
–7V
≤
V
CM
≤
12V, DE = 0
V
CM
= 0V, DE = 0
I
OUT
= –10
μ
A, (V
A
– V
B
) = 0V
I
OUT
= –4mA, (V
A
– V
B
) = 200mV
I
OUT
= 4mA, (V
A
– V
B
) = –200mV
V
CC
= Max, 0.4V
≤
V
OUT
≤
2.4V
DI/SHDN = 0, DE = 0
–7V
≤
V
CM
≤
12V
No Load, Driver Enabled (DE = V
CC
)
No Load, Driver Disabled (DE = 0)
DE = 0, DI = 0
–7V
≤
V
OUT
≤
10V
–7V
≤
V
OUT
≤
10V
0V
≤
V
OUT
≤
V
CC
CD = 0V
MIN
–0.20
TYP
MAX
0.20
UNITS
G
V
±
30
mV
G
3.4
3.5
V
V
V
G
V
OL
I
OZR
G
0.4
±
1
G
μ
A
R
IN
I
CC
G
12
22
580
430
10
k
μ
A
μ
A
μ
A
mA
mA
mA
μ
A
G
G
900
700
20
250
250
85
60
I
SHDN
I
OSD1
I
OSD2
I
OS
I
PULL-UP
SWITCHI
G CHARACTERISTICS
U
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 5V
±
5% (Notes 2 and 3) unless otherwise noted.
Supply Current in Shutdown Mode
Driver Short-Circuit Current, V
OUT
= High (Note 4)
Driver Short-Circuit Current, V
OUT
= Low (Note 4)
RO and CD Short-Circuit Current
CD Pull-Up Current
G
35
35
7
15
G
G
30
The
G
denotes the specifications which apply over the full operating
SYMBOL
t
PLH
t
PHL
t
SKEW
t
r
, t
f
t
ZH
t
ZL
t
LZ
t
HZ
t
ZH(SHDN)
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
Driver Enable from Shutdown to Output High
(Note 5)
Driver Enable from Shutdown to Output Low
Driver Disable on Shutdown from Output High
Driver Disable on Shutdown from Output Low
Maximum Data Rate (Note 6)
Receiver Input to Output (Note 7)
CONDITIONS
R
DIFF
= 54
, C
L1
= C
L2
= 100pF
(Figures 4, 6)
MIN
10
10
TYP
28
30
2
15
40
40
40
40
40
MAX
60
60
10
40
70
100
70
70
100
UNITS
G
ns
ns
ns
ns
ns
ns
ns
ns
ns
G
G
G
3
C
L
= 100pF (Figures 5, 7) S2 Closed
C
L
= 100pF (Figures 5, 7) S1 Closed
C
L
= 15pF (Figures 5, 7) S1 Closed
C
L
= 15pF (Figures 5, 7) S2 Closed
C
L
= 100pF (Figures 5, 7) S2 Closed
G
G
G
G
G
t
ZL(SHDN)
t
HZ(SHDN)
t
LZ(SHDN)
f
MAX
t
PLH
C
L
= 100pF (Figures 5, 7) S1 Closed
C
L
= 15pF (Figures 5, 7) S2 Closed
C
L
= 15pF (Figures 5, 7) S1 Closed
G
40
40
40
5
138
100
100
100
ns
ns
ns
G
G
G
4
Mbps
R
DIFF
= 54
, C
L1
= C
L2
= 100pF,
(Figures 4, 8)
R
DIFF
= 54
, C
L1
= C
L2
= 100pF,
(Figures 4, 8)
R
DIFF
= 54
, C
L1
= C
L2
= 100pF,
(Figures 4, 8)
R
DIFF
= 54
, C
L1
= C
L2
= 100pF,
(Figures 4, 10) DI/SHDN = V
CC
R
DIFF
= 54
, C
L1
= C
L2
= 100pF,
(Figures 4, 10) DI/SHDN = V
CC
G
30
200
ns
t
PHL
Receiver Input to Output
G
30
122
200
ns
t
SKD
|t
PLH
– t
PHL
| Differential Receiver Skew
16
ns
t
CDH
Receiver Input to CD Output High (Note 7)
G
2900
5000
ns
t
CDL
Receiver Input to CD Output Low (Note 7)
G
150
300
ns
相關(guān)PDF資料
PDF描述
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