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参数资料
型号： ADM2483BRW
厂商： ANALOG DEVICES INC
元件分类： 通用总线功能
英文描述： Half-Duplex iCoupler-R Isolated RS-485 Transceiver
中文描述： LINE TRANSCEIVER, PDSO16
封装： MS-013AA, SOIC-16
文件页数： 3/20页
文件大小： 308K
代理商： ADM2483BRW
ADM2483
SPECIFICATIONS
2.7 ≤ V
DD1
≤ 5.5 V, 4.75 V ≤ V
DD2
≤ 5.25 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter
DRIVER
Differential Outputs:
Differential Output Voltage, V
OD
Rev. 0 | Page 3 of 20
Min
2.0
1.5
1.5
Typ
Max
5
5
5
5
Unit
V
V
V
V
Test Conditions/Comments
R = ∞, Figure 3
R = 50 (RS-422), Figure 3
R = 27 (RS-485), Figure 3
V
TST
= 7 V to 12 V, V
DD1
≥ 4.75,
Figure 4
R = 27 or 50 , Figure 3
R = 27 or 50 , Figure 3
R = 27 or 50 , Figure 3
7 V ≤ V
OUT
≤ + 12 V
7 V ≤ V
OUT
≤ + 12 V
TxD, DE, RE, PV
TxD, DE, RE, PV
TxD, DE, RE, PV = V
DD1
or 0 V
7 V ≤ V
CM
≤ +12 V
7 V ≤ V
CM
≤ +12 V
7 V ≤ V
CM
≤ +12 V
V
IN
= +12 V
V
IN
= 7 V
I
OUT
= 20 μA, V
A
V
B
= 0.2 V
I
OUT
= 4 mA, V
A
V
B
= 0.2 V
|V
OD
| for Complementary Output States
Common-Mode Output Voltage, V
OC
|V
OC
| for Complementary Output States
Output Short-Circuit Current, V
OUT
= High
Output Short-Circuit Current, V
OUT
= Low
Logic Inputs:
Input High Voltage
Input Low Voltage
CMOS Logic Input Current (TxD, DE, RE, PV)
RECEIVER
Differential Inputs:
Differential Input Threshold Voltage, V
TH
Input Hysteresis
Input Resistance (A, B)
Input Current (A, B)
0.2
3
0.2
+250
+250
0.25 V
DD1
+10
30
0.125
0.1
V
V
V
250
250
0.7 V
DD1
mA
mA
V
V
μA
mV
mV
k
mA
mA
V
V
10
200
96
V
DD1
0.1
V
DD1
0.4
+0.01
125
20
150
V
DD1
0.2
RxD Logic Output:
Output High Voltage
Output Low Voltage
Output Short-Circuit Current
Three-State Output Leakage Current
POWER SUPPLY CURRENT
Logic Side
0.1
0.4
85
±1
2.5
V
V
I
OUT
= 20 μA, V
A
V
B
= 0.2 V
I
OUT
= 4 mA, V
A
V
B
= 0.2 V
V
OUT
= GND or V
CC
0.4 V ≤ V
OUT
≤ 2.4 V
4.5 V ≤ V
DD1
≤ 5.5 V, Outputs Unloaded,
RE = 0 V
2.7 V ≤ V
DD1
≤ 3.3 V, Outputs Unloaded, RE
= 0 V
Outputs Unloaded, DE = 5 V
Outputs Unloaded, DE = 0 V
T × D = V
DD1
or 0 V, V
CM
= 1 kV, Transient
Magnitude = 800 V
7
mA
μA
mA
1.3
mA
Bus Side
COMMON-MODE TRANSIENT IMMUNITY
1
2.0
1.7
mA
mA
kV/μs
25
1
Common-mode transient immunity is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V
CM
is the common-mode potential difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The
common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
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