The ADuM5401‑5404 series are four‑channel digital isolators with integrated isoPower DC‑DC converters, offering up to 500 mW output and 2500 V rms isolation.
The ADuM5401‑5404 family provides four independent isolation channels based on Analog Devices' iCoupler® technology. Each channel can isolate digital signals while the integrated isoPower DC‑DC converter supplies a regulated 3.3 V or 5.0 V output, eliminating the need for a separate isolated power source. Typical applications include RS‑232/RS‑422/RS‑485 transceivers, industrial field‑bus isolation, PLC interfaces, and sensor isolation.
Key features include up to 500 mW of output power per channel, data rates up to 25 Mbps (NRZ), UL‑1577 certified isolation of 2500 V rms, a minimum creepage distance of 8 mm, and operation up to 105 °C. The devices are offered in a 16‑pin SOIC package with a supply voltage range of 3.0‑5.5 V depending on the version.
| Regulated output voltage | 3.3 V or 5.0 V |
|---|---|
| Maximum output power | 500 mW |
| Isolation voltage (UL rating) | 2500 V rms (1 min) |
| Maximum operating temperature | 105 °C |
| Package pin count | 16 pins |
| Minimum creepage distance | 8.0 mm |
| Supply voltage range (5 V version) | 4.5 V ≤ VDD1 ≤ 5.5 V |
| Supply voltage range (3.3 V version) | 3.0 V ≤ VDD1 ≤ 3.6 V |
They provide either a 3.3 V or a 5.0 V regulated output.
The devices are rated for 2500 V rms isolation for 1 minute, meeting UL 1577.