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參數資料
| 型號： | ADUM2402BRWZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Quad-Channel Digital Isolators, 5KV |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | ROHS COMPLIANT, MS-013-AA, SOIC-16 |
| 文件頁數： | 20/23頁 |
| 文件大小： | 209K |
| 代理商： | ADUM2402BRWZ |
ADuM2400/ADuM2401/ADuM2402
Preliminary Technical Data
Rev. PrD| Page 20 of 23
MAGNETIC FIELD FREQUENCY (Hz)
100
M
D
0.001
1M
10
0.01
1k
10k
10M
0.1
1
100M
100k
0
Figure 19. Maximum Allowable External Magnetic Flux Density
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 will not cause a faulty output transition.
Similarly, if such an event were to occur during a transmitted
pulse (and was of 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 away from the ADuM240x
transformers.
Figure 20
expresses these allowable current
magnitudes as a function of frequency for selected distances. As can
be seen, the ADuM240x is extremely immune and can be affected
only by extremely large currents operated at high frequency and very
close to the component. For the 1 MHz example noted, one would
have to place a 0.5 kA current 5 mm away from the ADuM240x to
affect the component’s operation.
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 20. Maximum Allowable Current
for Various Current-to-ADuM240x Spacings
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could induce sufficiently large error voltages 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 ADuM240x
isolator is a function of the supply voltage, the channel’s data
rate, and the channel’s output load.
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
I
DDO
= (
I
DDO(D)
+ (0.5 x 10
-3
×
C
L
V
DDO
) × (2
f – f
r
) +
I
DDO(Q)
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 output load capacitance (pF).
V
DDO
is the output supply voltage (V).
f
is the input logic signal frequency (MHz, half of the input data
rate, NRZ signaling).
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 I
DD1
and I
DD2
supply current, the supply
currents for each input and output channel corresponding to
I
DD1
and I
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 14 provide total I
DD1
and I
DD2
supply current as a function of data rate for
ADuM2400/ADuM2401/ADuM2402 channel configurations.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADUM2402BRWZ-RL | 功能描述:IC ISOLATOR DIGITAL QUAD 16SOIC RoHS:是 類別:隔離器 >> 數字隔離器 系列:iCoupler® 產品培訓模塊:IsoLoop® Isolator 標準包裝:50 系列:IsoLoop® 輸入 - 1 側/2 側:5/0 通道數:5 電源電壓:3 V ~ 5.5 V 電壓 - 隔離:2500Vrms 數據速率:110Mbps 傳輸延遲:12ns 輸出類型:CMOS 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:管件 工作溫度:-40°C ~ 85°C 其它名稱:390-1053-5 |
| ADUM2402CRIZ | 功能描述:ISOLATOR DGTL 4CH 16SOIC RoHS:是 類別:隔離器 >> 數字隔離器 系列:iCoupler® 產品培訓模塊:IsoLoop® Isolator 標準包裝:50 系列:IsoLoop® 輸入 - 1 側/2 側:5/0 通道數:5 電源電壓:3 V ~ 5.5 V 電壓 - 隔離:2500Vrms 數據速率:110Mbps 傳輸延遲:12ns 輸出類型:CMOS 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:管件 工作溫度:-40°C ~ 85°C 其它名稱:390-1053-5 |
| ADUM2402CRIZ-RL | 功能描述:IC ISOLATOR DGTL 4CH 16SOIC RoHS:是 類別:隔離器 >> 數字隔離器 系列:iCoupler® 產品培訓模塊:IsoLoop® Isolator 標準包裝:50 系列:IsoLoop® 輸入 - 1 側/2 側:5/0 通道數:5 電源電壓:3 V ~ 5.5 V 電壓 - 隔離:2500Vrms 數據速率:110Mbps 傳輸延遲:12ns 輸出類型:CMOS 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:管件 工作溫度:-40°C ~ 85°C 其它名稱:390-1053-5 |
| ADUM2402CRWZ | 功能描述:IC ISOLATOR DIGITAL QUAD 16SOIC RoHS:是 類別:隔離器 >> 數字隔離器 系列:iCoupler® 標準包裝:66 系列:iCoupler® 輸入 - 1 側/2 側:2/2 通道數:4 電源電壓:3.3V，5V 電壓 - 隔離:2500Vrms 數據速率:25Mbps 傳輸延遲:60ns 輸出類型:邏輯 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:管件 工作溫度:-40°C ~ 105°C |
| ADUM2402CRWZ-RL | 功能描述:IC ISOLATOR DIGITAL QUAD 16SOIC RoHS:是 類別:隔離器 >> 數字隔離器 系列:iCoupler® 產品培訓模塊:IsoLoop® Isolator 標準包裝:50 系列:IsoLoop® 輸入 - 1 側/2 側:5/0 通道數:5 電源電壓:3 V ~ 5.5 V 電壓 - 隔離:2500Vrms 數據速率:110Mbps 傳輸延遲:12ns 輸出類型:CMOS 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:管件 工作溫度:-40°C ~ 85°C 其它名稱:390-1053-5 |
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