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Applcation Notes

Digital isolators

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Active input digital magnetic isolators Single, dual, four and five channel 150 Mbps active input Isoloop digital isolators. Ideal for logic level shifting, isolated data interfaces, peripheral interfaces, Profibus, DeviceNet, CANbus & I²C bus applications.
Isolated bus transceivers Isolated RS422, RS485 ( with or without handshake ) and Profibus interfaces. Low cost and fractional load transceivers.
Passive input isolators Single and dual input and output Isoloop digital isolators, ideal for CANbus and I²C bus applications, isolated gate drives and logic level shifting. Smallest versions available in MSOP package.
DC correct digital isolators Compared to the industry standard IL700-series, which have speeds up to 150 Mbps, IL500-Series isolators are more cost effective, offer a DC-correct design, and have an external clocking option on some models.

Quick Isoloop selection guide

Application requirement	Isolator design feature	Isolator series
Low power consumption	Pulsed magnetic field (2.5 ns)	IL7xx, IL2xx, IL5xx
High data rate	High bandwidth GMR sensor	IL7xx, IL2xx, IL6xx
Low PWD, 50 ps jitter	High slew rate inputs to coil	IL7xx, IL2xx, IL6xx
Low EMI signature	Data driven transfer function	IL7xx, IL2xx, IL6xx
Excellent transient immunity	Cross coupled, low capacitance Wheatstone bridge	All
Analog or differential inputs	Passive input (field coil)	IL6xx
Known initial output state	Internal refresh, or passive input	IL5xx, IL6xx
Channel-to-channel isolation	Integrated, isolated field coils	IL611, IL613
Wired-OR outputs	Open-drain outputs	IL6xxA (“A” types )
Failsafe operation	Known zero-field state	IL6xx
DC stability	Linear transfer function or refresh	IL6xx (linear), IL5xx
True optocoupler emulation	Passive input	IL6xx
Cost sensitive application	Internal refresh clock	IL5xx

Full Isoloop isolator selection guide

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