四通道隔离器，集成DC- DC转换器 Quad-Channel Isolators with Integrated DC-to-DC Converter
Product Details
The ADuM640x devices are quad-channel digital isolators with _iso_Power®, an integrated, isolated DC/DC converter. Based on the Analog Devices, Inc., _i_Coupler® technology, the DC/DC converter provides up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or 3.3 V from a 3.3 V supply at the power levels shown in Table 1. This eliminates the need for a separate, isolated DC/DC converter in low power, isolated designs. The _i_Coupler chip scale transformer technology is used to isolate the logic signals and for the magnetic components of the DC/DC converter. The result is a small form factor, total isolation solution.
The ADuM640x isolators provide four independent isolation channels in a variety of channel configurations and data rates see the Ordering Guide for more information.
_iso_Power uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board PCB layout to meet emissions standards. Refer to the AN-0971 application note for board layout recommendations at www.analog.com.
### Features and Benefits
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- isoPower integrated, isolated DC/DC converter
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- Regulated 3.3 V or 5 V output
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- Up to 500 mW output power
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- Quad dc-to-25 Mbps NRZ signal isolation channels
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- Schmitt trigger inputs
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- 16-lead SOIC package with 7.6 mm creepage
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- High temperature operation: 105°C
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- High common-mode transient immunity: >25 kV/μs
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- See data sheet for additional features
