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参数资料
| 型号： | ADM3493 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | 3.3 V Slew Rate Limited, Half Duplex RS-485/RS-422 Transceiver |
| 中文描述： | 3.3伏摆率限制，半双工RS-485/RS-422收发器 |
| 文件页数： | 3/12页 |
| 文件大小： | 233K |
| 代理商： | ADM3493 |
ADM3493
SPECIFICATIONS
V
CC
= 3.3 V ±0.3 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter
DRIVER
Differential Output Voltage, V
OD
Rev. 0 | Page 3 of 12
Min
Typ
Max
Units
V
Test Conditions/Comments
R
L
= 100 Ω (RS-422), V
cc
= 3.3 V
±5% (see Figure 3)
R
L
= 54 Ω (RS-485) (see Figure 3)
R
L
= 60 Ω
(RS-485), V
cc
= 3.3 V
(see Figure 4)
R
L
= 54 Ω or 100 Ω (see Figure 3)
R
L
= 54 Ω or 100 Ω (see Figure 3)
R
L
= 54 Ω or 100 Ω (see Figure 3)
DE, DI, RE
DE, DI, RE
DE, DI, RE
V
IN
= 12 V
DE = 0 V
V
CC
= 0 V or 3.6 V
2.0
1.5
1.5
V
V
Δ
|V
OD
| for Complementary Output States
1
Common-Mode Output Voltage, V
OC
Δ
|V
OC
| for Common-Mode Output Voltage
1
DRIVER INPUT LOGIC
CMOS Input Logic Threshold Low, V
IH
CMOS Input Logic Threshold High, V
IL
CMOS Logic Input Current, I
N1
Input Current (A, B), I
N2
0.2
3
0.2
0.8
±2
V
V
V
V
V
μA
μA
2.0
60
60
μA
V
IN
= 7 V
RECEIVER
Differential Input Threshold Voltage, V
TH
Input Hysteresis,
Δ
V
TH
CMOS Output Voltage High, V
OH
V
mV
V
7V < V
CM
< + 12 V
V
CM
= 0 V
I
OUT
= 1.5 mA, V
ID
= 200 mV
(see Figure 5)
I
OUT
= 2.5mA, V
ID
= 200mV
(see Figure 5)
V
cc
= 3.6 V, 0 V
≤
V
OUT
≤
V
cc
7 V < V
CM
< + 12 V
DE = V
CC
RE = 0 V or V
CC
DE = V
CC
RE = 0 V
DE = 0 V, RE = V
CC
, DI = V
CC
or 0 V
V
OUT
= 7 V
V
OUT
= 12 V
0 V < V
RO
< V
CC
0.2
V
cc
– 0.4
0.2
50
CMOS Output Voltage Low, V
OL
0.4
V
Three-State Output Leakage Current, I
OZR
Input Resistance, R
IN
POWER SUPPLY CURRENT
Supply Current
±1
2.2
μA
kΩ
mA
96
1.1
0.95
1.9
mA
No load,
DI = 0 V or V
CC
Supply Current in Shutdown Mode, I
SHDN
Driver Short-Circuit Output Current, I
OSD
0.002
1
μA
mA
mA
mA
250
250
±60
Receiver Short-Circuit Output Current, I
OSR
±8
1
Δ
V
OD
and
Δ
V
OC
are the changes in V
OD
and V
OC
, respectively, when DI input changes state.
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