GENERAL DESCRIPTION

The ADuM744x1 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.

FEATURES

Small, 16-lead QSOP

1000 V rms isolation rating

Safety and regulatory approvals

UL recognition

UL 1577: 1000 V rms for 1 minute

CSA Component Acceptance Notice #5A (pending)

Low power operation

5 V operation

2.25 mA per channel maximum @ 0 Mbps to 1 Mbps

11.5 mA per channel maximum @ 25 Mbps

3.3 V operation

1.5 mA per channel maximum @ 0 Mbps to 1 Mbps

8.25 mA per channel maximum @ 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