ADUM1200ARZ-RL7

The ADUM1200ARZ-RL7 is an integrated digital isolator manufactured by Analog Devices, Inc. It is designed to provide two-way signal isolation between two circuits, typically on different potential levels, while maintaining a high level of signal integrity. The device comes in a small outline package (SOIC) and utilizes iCoupler technology, ensuring efficient signal isolation without the need for any external components such as optocouplers.

• Size-critical multichannel isolation

• SPI interface/data converter isolation

• RS-232/RS-422/RS-485 transceiver isolation

• Digital field bus isolation

• Hybrid electric vehicles, battery monitor, and motor drive

The ADuM1200/ADuM12011 are dual-channel digital isolators based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic transformer technologies, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocouplers.

By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers.

The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.

The ADuM1200/ADuM1201 isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). Both devices operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In addition, the ADuM1200/ADuM1201 provide low pulse width distortion (<3ns for CR grade)and tight channelto-channel matching(<3ns for CR grade). Unlike other optocoupler alternatives, the ADuM1200/ADuM1201 isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during powerup/power-down conditions.

The ADuM1200W and ADuM1201W are automotive grade versions qualified for 125°C operation. See the Automotive Products section for more information.

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