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参数资料
| 型号： | ADM2490EBRWZ |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 通用总线功能 |
| 英文描述： | High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDSO16 |
| 封装： | ROHS COMPLIANT, MS-103AA, SOIC-16 |
| 文件页数： | 3/16页 |
| 文件大小： | 470K |
| 代理商： | ADM2490EBRWZ |
ADM2490E
SPECIFICATIONS
All voltages are relative to their respective ground; 2.7 ≤ V
DD1
≤ 5.5 V, 4.5 V ≤ V
DD2
≤ 5.5 V. All minimum/maximum specifications apply
over the entire recommended operation range, unless otherwise noted. All typical specifications are at T
A
= 25°C, V
DD1
= V
DD2
= 5.0 V,
unless otherwise noted.
Rev. 0 | Page 3 of 16
Table 1.
Parameter
SUPPLY CURRENT
Power-Supply Current, Logic Side
TxD/RxD Data Rate < 2 Mbps
TxD/RxD Data Rate = 16 Mbps
Power-Supply Current, Bus Side
TxD/RxD Data Rate < 2 Mbps
TxD/RxD Data Rate = 16 Mbps
DRIVER
Differential Outputs
Differential Output Voltage, Loaded
Symbol
I
DD1
I
DD1
I
DD2
I
DD2
|V
OD2
|
Min
2.0
Typ
Max
3.0
6
4.0
60
5.0
Unit
mA
mA
mA
mA
V
Test Conditions
2.7 V ≤ V
DD1
≤ 5.5 V, unloaded
100 Ω load between Y and Z
2.7 V ≤ V
DD1
≤ 5.5 V, unloaded
100 Ω load between Y and Z
R
L
= 50 Ω (RS-422),
see Figure 3
R
L
= 27 Ω (RS-485),
see Figure 3
7 V ≤ V
TEST1
≤ +12 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
V
OC
= 0 V
V
OC
= 12 V
V
OC
= 7 V
I
ORxD
= 1.5 mA, V
A
V
B
= 0.2 V
I
ORxD
= 1.5 mA, V
A
V
B
= 0.2 V
V
CM
= 1 kV, transient
magnitude = 800 V
1.5
5.0
V
|V
OD4
|
1.5
5.0
V
|V
OD
| for Complementary Output States
|V
OD
|
0.2
V
Common-Mode Output Voltage
V
OC
3.0
V
|V
OC
| for Complementary Output States
|V
OC
|
0.2
V
Short-Circuit Output Current
Logic Inputs
Input Threshold Low
Input Threshold High
TxD Input Current
RECEIVER
Differential Inputs
Differential Input Threshold Voltage
Input Voltage Hysteresis
Input Current (A, B)
Line Input Resistance
Logic Outputs
Output Voltage Low
Output Voltage High
Short Circuit Current
COMMON-MODE TRANSIENT IMMUNITY
1
I
OS
V
ILTxD
V
IHTRxD
I
TxD
V
TH
V
HYS
I
I
R
IN
V
OLRxD
V
OHRxD
0.25 × V
DD1
10
0.2
0.8
12
V
DD1
0.3
25
+0.01
70
0.2
V
DD1
0.2
200
0.7 × V
DD1
+10
+0.2
1.0
0.4
100
mA
V
V
μA
V
mV
mA
mA
kΩ
V
V
mA
kV/μs
1
CM 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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