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參數資料
| 型號： | ADUM1412BRWZ-RL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 其它接口 |
| 英文描述： | Quad-Channel Digital Isolators |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PDSO16 |
| 封裝： | ROHS COMPLIANT, MS-013AA, SOIC-16 |
| 文件頁數： | 19/20頁 |
| 文件大小： | 277K |
| 代理商： | ADUM1412BRWZ-RL |
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 occurs during a transmitted pulse
(and was of the worst-case polarity), it reduces the received
pulse from >1.0 V to 0.75 V—still well above the 0.5 V sensing
threshold of the decoder.
Rev. E | Page 19 of 20
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances from the
ADuM141x transformers. Figure 19 expresses 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, a 0.5 kA current needed to be placed 5 mm
away from the ADuM141x to affect the operation of the
component.
MAGNETIC FIELD FREQUENCY (Hz)
M
1000
100
10
1
0.1
0.01
1k
10k
100M
100k
1M
10M
DISTANCE = 5mm
DISTANCE = 1m
DISTANCE = 100mm
0
Figure 19. Maximum Allowable Current for Various
Current-to-ADuM141x Spacings
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could 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.
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
)
I
DDI
=
I
DDI (D)
× (2
f
f
r
) +
I
DDI
(
Q
)
f
≤ 0.5
f
r
f
> 0.5
f
r
For each output channel, the supply current is given by
I
DDO
= I
DDO
(
Q
)
I
DDO
= (
I
DDO
(
D
)
+ (0.5 × 10
3
) ×
C
L
× V
DDO
) × (2
f f
r
) +
I
DDO
(
Q
)
f
≤ 0.5
f
r
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 of the input
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
currents for each input and output channel corresponding to
V
DD1
and V
DD2
are calculated and totaled. Figure 8 and Figure 9
provide per-channel supply currents as a function of data rate
for an unloaded output condition. Figure 10 provides per-
channel supply current as a function of data rate for a 15 pF
output condition. Figure 11 through Figure 15 provide total
V
DD1
and V
DD2
supply current as a function of data rate for
ADuM1410/ADuM1411/ADuM1412 channel configurations.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADUM141D0BRQZ | 功能描述:DGTL ISO ROBUST QUAD 3:1 CH 制造商:analog devices inc. 系列:iCoupler? 包裝:管件 零件狀態:在售 技術:磁耦合 類型:通用 隔離式電源:無 通道數:4 輸入 - 輸入側 1/輸入側 2:3/1 通道類型:單向 電壓 - 隔離:3000Vrms 共模瞬態抗擾度（最小值）:75kV/μs 數據速率:150Mbps 傳播延遲 tpLH / tpHL（最大值）:13ns，13ns 脈寬失真（最大）:3ns 上升/下降時間（典型值）:2.5ns，2.5ns 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應商器件封裝:16-QSOP 標準包裝:98 |
| ADUM141D0BRQZ-RL7 | 功能描述:DGTL ISO ROBUST QUAD 3:1 CH 制造商:analog devices inc. 系列:iCoupler? 包裝:帶卷（TR） 零件狀態:在售 技術:磁耦合 類型:通用 隔離式電源:無 通道數:4 輸入 - 輸入側 1/輸入側 2:3/1 通道類型:單向 電壓 - 隔離:3000Vrms 共模瞬態抗擾度（最小值）:75kV/μs 數據速率:150Mbps 傳播延遲 tpLH / tpHL（最大值）:13ns，13ns 脈寬失真（最大）:3ns 上升/下降時間（典型值）:2.5ns，2.5ns 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應商器件封裝:16-QSOP 標準包裝:1,000 |
| ADUM141D0BRWZ | 功能描述:General Purpose Digital Isolator 3750Vrms 4 Channel 150Mbps 75kV/μs CMTI 16-SOIC (0.295", 7.50mm Width) 制造商:analog devices inc. 系列:iCoupler? 包裝:管件 零件狀態:有效 技術:磁耦合 類型:通用 隔離式電源:無 通道數:4 輸入 - 輸入側 1/輸入側 2:3/1 通道類型:單向 電壓 - 隔離:3750Vrms 共模瞬態抗擾度（最小值）:75kV/μs 數據速率:150Mbps 傳播延遲 tpLH / tpHL（最大值）:13ns，13ns 脈寬失真（最大）:3ns 上升/下降時間（典型值）:2.5ns，2.5ns 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商器件封裝:16-SOIC 標準包裝:47 |
| ADUM141D0BRWZ-RL | 功能描述:General Purpose Digital Isolator 3750Vrms 4 Channel 150Mbps 75kV/μs CMTI 16-SOIC (0.295", 7.50mm Width) 制造商:analog devices inc. 系列:iCoupler? 包裝:帶卷（TR） 零件狀態:有效 技術:磁耦合 類型:通用 隔離式電源:無 通道數:4 輸入 - 輸入側 1/輸入側 2:3/1 通道類型:單向 電壓 - 隔離:3750Vrms 共模瞬態抗擾度（最小值）:75kV/μs 數據速率:150Mbps 傳播延遲 tpLH / tpHL（最大值）:13ns，13ns 脈寬失真（最大）:3ns 上升/下降時間（典型值）:2.5ns，2.5ns 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商器件封裝:16-SOIC 標準包裝:1,000 |
| ADUM141D0BRZ | 功能描述:General Purpose Digital Isolator 3000Vrms 4 Channel 150Mbps 75kV/μs CMTI 16-SOIC (0.154", 3.90mm Width) 制造商:analog devices inc. 系列:iCoupler? 包裝:管件 零件狀態:有效 技術:磁耦合 類型:通用 隔離式電源:無 通道數:4 輸入 - 輸入側 1/輸入側 2:3/1 通道類型:單向 電壓 - 隔離:3000Vrms 共模瞬態抗擾度（最小值）:75kV/μs 數據速率:150Mbps 傳播延遲 tpLH / tpHL（最大值）:13ns，13ns 脈寬失真（最大）:3ns 上升/下降時間（典型值）:2.5ns，2.5ns 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商器件封裝:16-SOIC 標準包裝:48 |
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