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参数资料
| 型号： | EVAL-ADM3252EEBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADM3252E |
| 标准包装： | 1 |
| 主要目的： | 接口，隔离式，RS-232 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADM3252E |
| 主要属性： | 2.5 kV 隔离式（电源和数据）RS-232 收发器，隔离式 DC/DC 转换器 |
| 次要属性： | 2 通道 |
| 已供物品： | 板 |
Data Sheet
ADM3252E
Rev. A | Page 3 of 16
SPECIFICATIONS
All voltages are relative to their respective grounds, all minimum/maximum specifications apply over the entire recommended operating
range, TA = 40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC CHARACTERISTICS
VCC Operating Voltage Range
3.0
3.3
5.5
V
UVLO Threshold
Rising
2.7
V
Undervoltage lockout
Falling
2.3
V
Input Supply Current, ICC
20
35
mA
No load
45
75
mA
RL = 3 kΩ, VCC = 3.0 V to 5.5 V
35
60
mA
RL = 3 kΩ, VCC = 3.3 V
VISO Output
3.3
V
IISO = 0 μA
VISO Maximum Load Current, IISO(MAX)
15
mA
LOGIC
Transmitter Inputs, TIN1 and TIN2
Logic Input Current
10
+0.01
+10
μA
Logic Input Threshold
Low
0.3 × VCC
V
High
0.7 × VCC
V
Receiver Outputs, ROUT1 and ROUT2
Logic High Output
VCC 0.2
VCC
V
IROUTH = 20 μA
VCC 0.5
VCC 0.3
V
IROUTH = 4 mA
Logic Low Output
0.0
0.1
V
IROUTH = 20 μA
0.2
0.4
V
IROUTH = 4 mA
RS-232
Receiver Inputs, RIN1 and RIN2
EIA-232 Input
Voltage Range1
30
+30
V
Threshold Low
0.8
1.0
V
Threshold High
1.5
2.0
V
Hysteresis
0.45
V
Resistance
3
5
7
kΩ
Transmitter Outputs, TOUT1 and TOUT2
Output Voltage Swing (RS-232)
±5.0
±5.2
V
RL = 3 kΩ to GND
Transmitter Output Resistance
300
Ω
VCC = 0 V, VISO = 0 V
Output Short-Circuit Current (RS-232)
±15
mA
TIMING CHARACTERISTICS
Maximum Data Rate
460
kbps
RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF
Receiver Propagation Delay
tPHL
0.4
1
μs
tPLH
0.4
1
μs
Transmitter Propagation Delay
0.3
1.2
μs
RL = 3 kΩ, CL = 1000 pF
Transmitter Skew
30
ns
Receiver Skew
300
ns
Transition Region Slew Rate
10
V/μs
Measured from +3 V to 3 V or 3 V to +3 V,
VCC = +3.3 V, RL = 3 kΩ, CL = 1000 pF, TA = 25°C
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