ADUM1402ARWZ-RL is a four-channel digital isolator based on Analog Devices, Inc. iCoupler® technology located on the Antminer D7 hash board. Combining high-speed CMOS and monolithic air-core transformer technologies, this isolation component offers superior performance characteristics over alternatives. The isolator chip operates from 2.7 V to 5.5 V, providing compatibility with lower voltage systems and enabling voltage translation across the isolation barrier. Additionally, the ADUM1402ARWZ-RL features low pulse width distortion (<2 ns for CRW stage) and tight channel-to-channel matching (<2 ns for CRW stage). Unlike other optocoupler alternatives, the ADUM1402ARWZ-RL isolator features a patented refresh feature that ensures DC correctness when no input logic transitions and power is not applied to one of the supplies.

Feature:

• Low power operation

 5 V operation

 1.0 mA per channel maximum at 0 Mbps to 2 Mbps

 3.5 mA per channel maximum at 10 Mbps

 31 mA per channel maximum at 90 Mbps

 3 V operation

 0.7 mA per channel maximum at 0 Mbps to 2 Mbps

 2.1 mA per channel maximum at 10 Mbps

 20 mA per channel maximum at 90 Mbps

• Bidirectional communication

• 3 V/5 V level translation

• High-temperature operation: 125°C

• High data rate: dc to 90 Mbps (NRZ)

• Precise timing characteristics

 2 ns maximum pulse width distortion

 2 ns maximum channel-to-channel matching

• High common-mode transient immunity: >25 kV/μs

• Output enable function

• 16-lead SOIC wide-body package

• RoHS-compliant models available

Application:

• Antminer D7 hash board

• General-purpose multichannel isolation

• SPI interface/data converter isolation

• RS-232/RS-422/RS-485 transceivers

• Industrial field bus isolation