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1千伏双通道数字隔离器adum7240/adum7241数据表
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The ADuM7240/ADuM72411 are dual channel digital isolators based on the Analog Devices， Inc.， iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technologies， these isolation components provide outstanding performance characteristics superior to the alternatives， such as optocoupler devices and other integrated couplers. The ADuM7240/ADuM7241 dual 1 kV digital isolation devices are packaged in a narrow-body 8-lead SOIC. The ADuM7240/ ADuM7241 offer a cost-effective option compared to 2.5 kV or 5 kV isolators where only functional isolation is needed. Like other Analog Devices isolators， the ADuM7240/ADuM7241 offer very low power consumption， consuming one-tenth to one-sixth the power of comparable isolators at data rates up to 25 Mbps. Despite the low power consumption， all models of the ADuM7240/ADuM7241 provide low pulse width distortion （《5 ns for C grade）。 In addition， every model has an input glitch filter to protect against extraneous noise disturbances. The ADuM7240/ADuM7241 provide two independent isolation channels and are available in two channel configurations with 1 Mbps or 25 Mbps data rates （see the Ordering Guide）。 All models operate with the supply voltage on either side ranging from 3.0 V to 5.5 V， providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. The ADuM7240/ADuM7241 also have an output default high logic state in the absence of input power.
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