Analog Devices Inc. Quad-Channel Digital Isolators | Featured Product Spotlight
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Analog Devices Inc. Quad-Channel Digital Isolators
Analog Devices ADuM642xA series of quad-channel digital isolators have an integrated and isolated DC-to-DC converter, providing a compact and complete isolation solution for applications such as RS-232 transceivers, isolated sensor interfaces, power supply start-up bias and gate drives, and industrial PLCs.
This makes the ADuM642xA series a total solution. The isoPower integrated and isolated DC-to-DC converter eliminates the need for a separate isolated power supply. It can be set to a 3.3V or 5V output and can drive an output current up to 100mA. It also meets CISPR 32 Class B limits at full load with signals up to 5Mbps on a 2-layer PCB with ferrites. The IC uses iCoupler chip-scale transformer technology to isolate logic signals and for the magnetics in the DC-to-DC converter. This minimizes external component count and the total design footprint.
The ADuM642xA series provides four independent isolation channels that can be used with signals from DC to 100 Mbps. Parts are offered with non-isolated and isolated input configurations of 4x0, 3x1, and 2x2. They also have 1.7V to 5.5V independent logic supply rails for the isolated and non-isolated sides, enabling built-in translation of 1.8V to 5V logic. The digital isolators are rated for 100kV/µs common-mode transient immunity and 5000VRMS isolation.
The ADuM642xA series is housed in a 28-lead wide-body finer pitch SOIC that provides 8.3mm of creepage and clearance. The parts are rated for operation from -40°C to +125°C.
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