
ADUM7641 Series
1kV RMS Six-Channel Digital Isolators (5/1 Channel Directionality)
Manufacturer: Analog Devices
Catalog
1kV RMS Six-Channel Digital Isolators (5/1 Channel Directionality)
Key Features
• Small 20-lead QSOP
• 1000 V rms isolation rating
• Safety and regulatory approvals:
• UL 1577
• VISO= 1000 V rms for 1 minute
• Low power operation
• 3.3 V operation
• 1.6 mA per channel maximum at 0 Mbps to 1 Mbps
• 7.8 mA per channel maximum at 25 Mbps
• 5 V operation
• 2.2 mA per channel maximum at 0 Mbps to 1 Mbps
• 11.2 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
Description
AI
TheADuM7640/ ADuM7641 /ADuM7642/ADuM7643are 6-channel digital isolators based on the Analog Devices, Inc.,iCoupler®technology. These 1 kV digital isolation devices are packaged in a small 20-lead QSOP. They offer space savings and a lower price than 2.5 kV or 5 kV isolation solutions when only functional isolation is needed.This family, like many Analog Devices isolators, offers very low power consumption, using one-tenth to one-sixth the power of other digital isolators, with the supply voltage on either side ranging from 3.0 V to 5.5 V. Despite their low power consumption, the ADuM7640 / ADuM7641 / ADuM7642 / ADuM7643 provide low pulse width distortion (< 6 ns for C grade) and a channel-by-channel glitch filter to protect the device against extraneous noise disturbances. Four channel direction combinations are available with a maximum data rate of 1 Mbps or 25 Mbps. All products have a default output high logic state in the absence of input power.ApplicationsGeneral-purpose, multichannel isolationSPI interface/data converter isolationRS-232/RS-422/RS-485 transceiversIndustrial field bus isolation