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| 型号： | ADUM1412ARWZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC ISOLATOR DGTL QUAD 16-SOIC |
| 其它图纸： | ADUM Series Quad Channel |
| 标准包装： | 47 |
| 系列： | iCoupler® |
| 输入 - 1 侧/2 侧： | 2/2 |
| 通道数： | 4 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电压 - 隔离： | 2500Vrms |
| 数据速率： | 1Mbps |
| 传输延迟： | 65ns |
| 输出类型： | 逻辑 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 105°C |
| 产品目录页面： | 2766 (CN2011-ZH PDF) |
I DDO = ( I DDO ( D ) + (0.5 × 10 ) × C L × V DDO ) × (2 f ? f r ) + I DDO ( Q )
ADuM1410/ADuM1411/ADuM1412
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kgauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event occurred during a transmitted pulse
(and had the worst-case polarity), it would reduce the received
pulse from >1.0 V to 0.75 V, still well above the 0.5 V sensing
threshold of the decoder.
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances from the
ADuM141x transformers. Figure 19 shows these allowable
current magnitudes as a function of frequency for selected
distances. As shown, the ADuM141x is extremely immune and
can be affected only by extremely large currents operated at
high frequency very close to the component. For the 1 MHz
example noted previously, a 0.5 kA current would have to be
placed 5 mm away from the ADuM141x to affect the operation
of the component.
1000
Data Sheet
POWER CONSUMPTION
The supply current at a given channel of the ADuM141x
isolator is a function of the supply voltage, the data rate of the
channel, and the output load of the channel.
For each input channel, the supply current is given by
I DDI = I DDI ( Q ) f ≤ 0.5 f r
I DDI = I DDI (D) × (2 f ? f r ) + I DDI ( Q ) f > 0.5 f r
For each output channel, the supply current is given by
I DDO = I DDO ( Q ) f ≤ 0.5 f r
?3
f > 0.5 f r
where:
I DDI (D) , I DDO (D) are the input and output dynamic supply currents
per channel (mA/Mbps).
C L is the output load capacitance (pF).
V DDO is the output supply voltage (V).
f is the input logic signal frequency (MHz); it is half the input
100
10
DISTANCE = 100mm
DISTANCE = 1m
data rate, expressed in units of Mbps.
f r is the input stage refresh rate (Mbps).
I DDI (Q) , I DDO (Q) are the specified input and output quiescent
supply currents (mA).
To calculate the total V DD1 and V DD2 supply current, the supply
1
0.1
DISTANCE = 5mm
currents for each input and output channel corresponding to
V DD1 and V DD2 are calculated and totaled. Figure 8 and Figure 9
show per-channel supply currents as a function of data rate for
an unloaded output condition. Figure 10 shows the per-channel
supply current as a function of data rate for a 15 pF output
0.01
1k
10k 100k 1M 10M
MAGNETIC FIELD FREQUENCY (Hz)
Figure 19. Maximum Allowable Current for Various
Current-to- ADuM141x Spacings
100M
condition. Figure 11 through Figure 15 show the total V DD1 and
V DD2 supply current as a function of data rate for ADuM1410 /
ADuM1411 / ADuM1412 channel configurations.
INSULATION LIFETIME
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces can
induce error voltages sufficiently large enough to trigger the
thresholds of succeeding circuitry. Care should be taken in the
layout of such traces to avoid this possibility.
All insulation structures eventually break down when subjected
to voltage stress over a sufficiently long period. The rate of
insulation degradation is dependent on the characteristics of the
voltage waveform applied across the insulation. In addition to
the testing performed by the regulatory agencies, Analog
Devices carries out an extensive set of evaluations to determine
the lifetime of the insulation structure within the ADuM141x .
Rev. J | Page 20 of 24
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相关代理商/技术参数 |
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| ADUM1412ARWZ-RL | 功能描述:IC ISOLATOR DGTL QUAD 16-SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 产品培训模块:IsoLoop® Isolator 标准包装:50 系列:IsoLoop® 输入 - 1 侧/2 侧:5/0 通道数:5 电源电压:3 V ~ 5.5 V 电压 - 隔离:2500Vrms 数据速率:110Mbps 传输延迟:12ns 输出类型:CMOS 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:管件 工作温度:-40°C ~ 85°C 其它名称:390-1053-5 |
| ADUM1412BRWZ | 功能描述:IC ISOLATOR DGTL QUAD 16-SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 标准包装:66 系列:iCoupler® 输入 - 1 侧/2 侧:2/2 通道数:4 电源电压:3.3V，5V 电压 - 隔离:2500Vrms 数据速率:25Mbps 传输延迟:60ns 输出类型:逻辑 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:管件 工作温度:-40°C ~ 105°C |
| ADUM1412BRWZ | 制造商:Analog Devices 功能描述:DIGITAL ISOLATOR, 4CH, 30NS, WSOIC-16 |
| ADUM1412BRWZ-RL | 功能描述:IC ISOLATOR DGTL QUAD 16-SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 产品培训模块:IsoLoop® Isolator 标准包装:50 系列:IsoLoop® 输入 - 1 侧/2 侧:5/0 通道数:5 电源电压:3 V ~ 5.5 V 电压 - 隔离:2500Vrms 数据速率:110Mbps 传输延迟:12ns 输出类型:CMOS 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:管件 工作温度:-40°C ~ 85°C 其它名称:390-1053-5 |
| ADUM141D0BRQZ | 功能描述:DGTL ISO ROBUST QUAD 3:1 CH 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:在售 技术:磁耦合 类型:通用 隔离式电源:无 通道数:4 输入 - 输入侧 1/输入侧 2:3/1 通道类型:单向 电压 - 隔离:3000Vrms 共模瞬态抗扰度（最小值）:75kV/μs 数据速率:150Mbps 传播延迟 tpLH / tpHL（最大值）:13ns，13ns 脉宽失真（最大）:3ns 上升/下降时间（典型值）:2.5ns，2.5ns 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商器件封装:16-QSOP 标准包装:98 |
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