ANALOG DEVICES ADUM2281ARIZ Digital Isolator, 2 Channels, 2.7 V, 5.5 V, WSOIC, 16 Pins, 1 Mbps

ADuM2281 is a 5kV rms dual channel digital isolator based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocoupler devices and other integrated couplers. This model operates with the supply voltage on either side ranging from 2.7V to 5.5V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. Unlike other optocoupler alternatives, the ADuM228x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions. Application includes general-purpose, high voltage, multichannel isolation, medical equipment, power supplies, RS-232/RS-422/RS-485 transceiver isolation.

• 1 number of inputs, VDD1 side, 1 number of inputs VDD2 side
• 1Mbps maximum data rate, 50 maximum prop delay (5V)
• High output default state
• High isolation voltage is 5000V rms
• Data rate is 1Mbps (max, within PWD limit, TA = 25°C, VDD1 = VDD2 = 5V)
• Propagation delay is 50ns (typ, 50% input to 50% output)
• Pulse width distortion is 10ns (typ, tPLH − tPHL , TA = 25°C)
• Propagation delay skew is 38ns (max, between any two units at same operating conditions)
• Codirectional is 5ns (max, TA = 25°C, VDD1 = VDD2 = 5V)
• 16 lead SOIC-IC package, operating temperature range from -40°C to +125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party