ADUM7442

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 ...