ANALOG DEVICES ADUM2251ARIZ-RL Digital Isolator, 2 Channels, 3 V, 5.5 V, SOIC, 16 Pins, 1 Mbps

ADUM2251ARIZ-RL is a hot swappable digital isolator with nonlatching, bidirectional communication channels that are compatible with I²C interfaces. This eliminates the need for splitting I²C signals into separate transmit and receive signals for use with standalone optocouplers. It provides one bidirectional channel and one unidirectional channel for those applications where a bidirectional clock is not required. It contains hot swap circuitry to prevent data glitches when an unpowered card is inserted onto an active bus. It is approved by UL recognition: 5000V rms for 1 minute per UL 1577, CSA component acceptance notice 5A, IEC 60601-1: 250V rms (reinforced), IEC 60950-1: 400V rms (reinforced), VDE certificate of conformity, DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 849V peak. It is used in applications such as isolated I²C, SMBus, or PMBus interfaces, multilevel I²C interfaces, power supplies, networking, power over ethernet.

• Number of inputs, VDD1 side is 2, bidirectional I²C communication
• Number of inputs, VDD1 side is 1, open-drain interfaces
• 1Mbps maximum data rate, suitable for hot swap applications
• 30mA current sink capability, 1000KHz operation
• 3V to 5.5V supply/logic levels
• Common mode transient immunity is 35KV/µs typical
• Input capacitance is 4pF typical
• Operating temperature range from -40°C to +105°C
• 16-lead SOIC-IC package

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