ADUM7240ARZ-RL7

1千伏，双通道数字隔离器 1 kV, Dual Channel Digital Isolators

Product Details

The ADuM7240/ADuM7241 are dual channel digital isolators based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core trans-former technologies, these isolation components provide outstanding performance characteristics superior to the alterna-tives, 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.

**Applications**

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General-purpose multichannel isolation

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Data converter isolation

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Industrial field bus isolation

### Features and Benefits

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Narrow-body, RoHS-compliant, 8-lead SOIC

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Safety and regulatory approvals

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UL recognition

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UL 1577: 1000 V rms for 1 minute

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Low power operation

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5 V operation

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2.4 mA per channel maximum at 0 Mbps to 1 Mbps

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11.8 mA per channel maximum at 25 Mbps

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3.3 V operation

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1.7 mA per channel maximum at 0 Mbps to 1 Mbps

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8.2 mA per channel maximum at 25 Mbps

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Bidirectional communication

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Up to 25 Mbps data rate NRZ

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3 V/5 V level translation

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High temperature operation: 105°C

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High common-mode transient immunity: >15 kV/μs