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| 型号： | ADUM1100UR-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC DIGITAL ISOL/COUPLER 8SOIC |
| 设计资源： | USB Cable Isolator Circuit (CN0159) |
| 标准包装： | 1,000 |
| 系列： | iCoupler® |
| 输入 - 1 侧/2 侧： | 1/0 |
| 通道数： | 1 |
| 电源电压： | 3 V ~ 5.5 V |
| 电压 - 隔离： | 2500Vrms |
| 数据速率： | 100Mbps |
| 传输延迟： | 10.5ns |
| 输出类型： | 逻辑 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
Data Sheet
4
6
ADuM1100
5
3
4
2
5V INPUT SIGNAL
3
5V INPUT SIGNAL
3.3V INPUT SIGNAL
2
1
3.3V INPUT SIGNAL
1
0
1
2
3
4
5 6 7
8
9
10
0
1
2
3 4
5 6 7
8
9
10
0
INPUT RISE TIME (10%–90%, ns)
Figure 16. Typical Propagation Delay Change Due to
Input Rise Time Variation (for V DD1 = 3.3 V and 5 V)
INPUT RISE/FALL TIME (10%–90%, ns)
Figure 18. Typical Pulse Width Distortion Adjustment Due to
Input Rise/Fall Time Variation (for V DD1 = 3.3 V and 5 V)
METHOD OF OPERATION, DC CORRECTNESS, AND
MAGNETIC FIELD IMMUNITY
The two coils in Figure 1 act as a pulse transformer. Positive
–1
–2
–3
3.3V INPUT SIGNAL
5V INPUT SIGNAL
and negative logic transitions at the isolator input cause narrow
(2 ns) pulses to be sent via the transformer to the decoder. The
decoder is bistable and therefore either set or reset by the pulses
indicating input logic transitions. In the absence of logic transi-
tions at the input for more than ~1 μs, a periodic update pulse
of the appropriate polarity is sent to ensure dc correctness at the
output. If the decoder receives none of these update pulses for
more than about 5 μs, the input side is assumed to be unpowered
–4
1
2
3
4
5 6 7
8
9
10
or nonfunctional, in which case the isolator output is forced to
a logic high state by the watchdog timer circuit.
INPUT RISE TIME (10%–90%, ns)
Figure 17. Typical Propagation Delay Change Due to
Input Fall Time Variation (for V DD1 = 3.3 V and 5 V)
The impact of the slower input edge rates can also affect the
measured pulse width distortion as based on the input 50%
level. This impact can either increase or decrease the apparent
pulse width distortion depending on the relative magnitudes of
t PHL , t PLH , and PWD. The case of interest here is the condition
that leads to the largest increase in pulse width distortion. The
change in this case is given by
Δ PWD = PWD ′ ? PWD = Δ LH ? Δ HL =
( t /0.8 V I )( V ? V ITH ( L-H ) ? V ITH ( H-L ) ), (for t = t R = t F )
where:
PWD = | t PLH ? t PHL |.
PWD’ = | t’ PLH ? t’ PHL |.
This adjustment in pulse width distortion is plotted as a
function of input rise/fall time in Figure 18.
The limitation on the magnetic field immunity of the
ADuM1100 is set by the condition in which induced voltage in
the transformer’s receiving coil is sufficiently large to either
falsely set or reset the decoder. The analysis that follows defines
the conditions under which this can occur. The 3.3 V operating
condition of the ADuM1100 is examined because it represents
the most susceptible mode of operation.
The pulses at the transformer output are greater than 1.0 V in
amplitude. The decoder has sensing thresholds at about 0.5 V,
therefore establishing a 0.5 V margin in which induced voltages
can be tolerated. The voltage induced across the receiving coil
is given by
V = (? dβ / dt ) ∑π r n 2 , n = 1, 2, . . . , N
where:
β is the magnetic flux density (gauss).
N is the number of turns in the receiving coil.
r n is the radius of the nth turn in the receiving coil (cm).
Rev. I | Page 17 of 20
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| ADUM1100URZ | 功能描述:IC ISOLATOR DGTL COUPLER 8-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 |
| ADUM1100URZ-RL7 | 功能描述:IC ISOLATOR DGTL COUPLER 8SOIC 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 |
| ADUM110N0BRZ | 功能描述:General Purpose Digital Isolator 3000Vrms 1 Channel 150Mbps 75kV/μs CMTI 8-SOIC (0.154", 3.90mm Width) 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:有效 技术:磁耦合 类型:通用 隔离式电源:无 通道数:1 输入 - 输入侧 1/输入侧 2:1/0 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:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 标准包装:98 |
| ADUM110N0BRZ-RL7 | 功能描述:General Purpose Digital Isolator 3000Vrms 1 Channel 150Mbps 75kV/μs CMTI 8-SOIC (0.154", 3.90mm Width) 制造商:analog devices inc. 系列:iCoupler? 包装:带卷（TR） 零件状态:有效 技术:磁耦合 类型:通用 隔离式电源:无 通道数:1 输入 - 输入侧 1/输入侧 2:1/0 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:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 标准包装:1,000 |
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