ISO7420D Description

The ISO7420D provides galvanic isolation up to 2500 VRMS for 1 minute per UL. The digital isolator ISO7420D has two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, the ISO7420D prevents noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix M indicates a wide temperature range (- 40°C to 125°C).

ISO7420D Features

Highest Signaling Rate: 1 Mbps

Low Power Consumption, Typical ICC per Channel(3.3-V operation): – ISO7420: 1.1 mA, ISO7421: 1.5 mA

Low Propagation Delay – 9 ns Typical

Low Skew – 300 ps Typical

Wide TA Range: –40°C to 125°C (M-Grade)

50-kV/μs Transient Immunity, Typical

Over 25-Year Isolation Integrity at Rated Voltage

Operates From 3.3-V and 5-V Supply and Logic

ISO7420D Applications

Industrial Fieldbus

Servo Control Interface

Motor Control

Power Supplies

Battery Packs