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ADUM7442

Analog Devices
Part Number ADUM7442
Manufacturer Analog Devices
Description (ADUM7440 - ADUM7442) 1 KV RMS Quad-Channel Digital Isolator
Published Dec 21, 2009
Detailed Description Data Sheet 1 kV RMS Quad-Channel Digital Isolators ADuM7440/ADuM7441/ADuM7442 FEATURES Small, 16-lead QSOP 1000 V rms ...
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ADUM7442
ADUM7442


Overview
Data Sheet 1 kV RMS Quad-Channel Digital Isolators ADuM7440/ADuM7441/ADuM7442 FEATURES Small, 16-lead QSOP 1000 V rms isolation rating Safety and regulatory approvals UL recognition UL 1577: 1000 V rms for 1 minute Low power operation 5 V operation 2.
25 mA per channel maximum at 0 Mbps to 1 Mbps 11.
5 mA per channel maximum at 25 Mbps 3.
3 V operation 1.
5 mA per channel maximum at 0 Mbps to 1 Mbps 8.
25 mA per channel maximum at 25 Mbps Bidirectional communication Up to 25 Mbps data rate (NRZ) 3 V/5 V level translation High temperature operation: 105°C High common-mode transient immunity: >15 kV/μs APPLICATIONS General-purpose, multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation GENERAL DESCRIPTION The ADuM7440/ADuM7441/ADuM74421 are 4-channel digital isolators based on the Analog Devices, Inc.
, iCoupler® technology.
Combining high speed CMOS and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices and other integrated couplers.
The ADuM7440/ADuM7441/ADuM7442 family of quad 1 kV digital isolation devices is packaged in a small 16-lead QSOP.
While most 4-channel isolators come in 16-lead wide SOIC packages, the ADuM7440/ADuM7441/ADuM7442 free almost 70% of board space and yet can still withstand high isolation voltage and meet UL regulatory requirements.
In addition to the space savings, the ADuM7440/ADuM7441/ADuM7442 offer a lower price than 2.
5 kV or 5 kV isolators where only functional isolation is needed.
This family, like many Analog Devices isolators, offers very low power consumption, consuming one-tenth to one-sixth the power of comparable isolators at comparable data rates up to 25 Mbps.
Despite the low power consumption, all models of the ADuM7440/ADuM7441/ADuM7442 provide low pulse width distortion (<5 ns for C grade).
In addition, every model has an input gl...


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