ADuM744x1 is a 1 kV RMS quad-channel digital isolator with small, 16-lead QSOP packages and 1000 V rms isolation rating. The isolator is suitable for a variety of applications, including general-purpose, multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation.
The ADuM7440 family provides four independent isolation channels in a compact 16‑lead QSOP package, offering 1 kV RMS isolation and low power consumption. It operates from 3.0 V to 5.5 V and supports bidirectional communication with level translation between 3 V and 5 V.
Designed for general‑purpose, multichannel isolation, the devices are suitable for SPI, RS‑232/422/485, and industrial field‑bus applications. They meet UL 1577 and CSA safety approvals and feature high common‑mode transient immunity.
| Isolation Voltage | 1000 V RMS (1‑minute) |
|---|---|
| Maximum Data Rate | 25 Mbps |
| Supply Voltage Range | 3.0 V – 5.5 V |
| Power Consumption per Channel (3.3 V operation) | 1.5 mA (typical) |
The device is rated for 1000 V RMS isolation for a 1‑minute duration.
It supports data rates up to 25 Mbps.
The isolator operates with supply voltages between 3.0 V and 5.5 V.