參數(shù)資料
型號(hào): MAX1482
廠商: Maxim Integrated Products, Inc.
英文描述: Low Power, Slew-Rate-Limited RS-485 Transceivers(250kbps,半雙工,RS-485收發(fā)器)
中文描述: 20µA、1/8單位負(fù)載、限擺率、RS-485收發(fā)器
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 142K
代理商: MAX1482
M
20μA,
1
8
-Unit-Load, S lew-Rate-Limited
RS -485 Transc eivers
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
SYMBOL
PARAMETER
SWITCHING CHARACTERISTICS
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
MAX1482,
RE = 0V or V
CC
0V
V
O
V
CC
MAX1483,
RE = 0V or V
CC
DE = 0V, RE = V
CC
DI = high or low, -7V
V
O
12V (Note 2)
CONDITIONS
55
20
0.1
85
35
10
250
20
35
25
45
mA
±7
±95
I
OSR
Receiver Short-Circuit Current
μA
I
CC
No-Load Supply Current
μA
mA
I
SHDN
I
OSD
Supply Current in Shutdown
Driver Short-Circuit Current
35
UNITS
MIN
TYP
MAX
DE = V
CC
DE = 0V
DE = V
CC
DE = 0V
Figures 4 and 6, C
L
= 15pF, S2 closed
Figures 3 and 7, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
Figures 4 and 6, C
L
= 15pF, S1 closed
Figures 4 and 6, C
L
= 100pF, S1 closed
Figures 4 and 6, C
L
= 100pF, S2 closed
PARAMETER
SYMBOL
t
PLH
t
PHL
MIN
TYP
MAX
2
2
UNITS
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Receiver Input to Output
|
t
PLH
- t
PHL
|
Differential
Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Maximum Data Rate
Time to Shutdown
Driver Enable from Shutdown to
Output High
t
ZH
t
ZL
t
LZ
t
HZ
0.2
0.1
0.3
0.3
0.25
2
2
Driver Output Skew to Output
Driver Rise or Fall Time
t
R
, t
F
0.25
2
μs
μs
μs
3.0
3.0
2.25
μs
μs
μs
Driver Input to Output
t
SKEW
800
μs
CONDITIONS
Figures 3 and 5, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 3 and 5, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
Figures 3 and 5, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
ns
t
PLH
,t
PHL
t
SKD
Figures 3 and 7, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
160
ns
t
ZL
t
ZH
t
LZ
t
HZ
f
MAX
t
SHDN
Figures 2 and 8, C
RL
= 15pF, S1 closed
Figures 2 and 8, C
RL
= 15pF, S2 closed
Figures 2 and 8, C
RL
= 15pF, S1 closed
Figures 2 and 8, C
RL
= 15pF, S2 closed
90
90
90
90
ns
ns
ns
ns
250
50
kbps
ns
(Note 3)
200
600
t
ZH(SHDN)
Figures 4 and 6, C
L
= 100pF, S2 closed
2
μs
Driver Enable from Shutdown to
Output Low
t
ZL(SHDN)
Figures 4 and 6, C
L
= 100pF, S1 closed
2
μs
Receiver Enable from Shutdown
to Output High
t
ZH(SHDN)
Figures 2 and 8, C
L
= 15pF, S2 closed,
A - B = 2V
3
Receiver Enable from Shutdown
to Output Low
t
ZL(SHDN)
Figures 2 and 8, C
L
= 15pF, S1 closed,
B - A = 2V
3
μs
μs
Note 2:
Note 3:
Applies to peak current. See Typical Operating Characteristics.
than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are
guaranteed to have entered shutdown. See Low-Power Shutdown Mode section.
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