ISO150AUG4

Overview

The ISO150AUG4 is a general-purpose digital isolator manufactured by Texas Instruments. It features two independent channels with a data rate of 80 MBd and a typical common-mode transient immunity (CMTI) of 1.6 kV/µs. The device operates on a supply voltage range of 3 V to 5.5 V, drawing an operating supply current of 14 mA. Key electrical parameters include a propagation delay time of 27 ns and an isolation rating of 1500 Vrms. It is housed in a 12-pin SOP package.

Feature Summary

• Provides galvanic isolation between circuit sections using capacitive coupling technology.
• Supports high-speed digital signal transmission with a maximum data rate of 80 MBd.
• Offers robust noise immunity against fast-rising transient voltages.

Applications

• Industrial communication interfaces requiring signal isolation
• Medical equipment safety barriers
• Power monitoring systems

Procurement Notes

Verify the exact suffix 'U' and 'G4' to confirm the specific tape-and-reel or tube packaging variant and lead-free status. Confirm that the component meets RoHS directives as indicated by the G4 suffix. Check for obsolescence status, as distributors may list this part as no longer manufactured, requiring validation of available stock or substitute sources before procurement.

Selection Notes

Select this component when a dual-channel isolator with moderate speed requirements is needed. Ensure the application voltage does not exceed the 5.5 V maximum supply limit. Verify that the required isolation voltage aligns with the 1500 Vrms rating. Consider the 12-pin SOP footprint constraints during PCB layout design.

Part Context

This part belongs to the ISO150 family of digital isolators from Texas Instruments. These devices are designed to replace traditional optocouplers in applications demanding higher reliability and lower power consumption. The family typically includes variants with different channel counts and data rates, sharing similar pinouts and functional characteristics.

Replacement Considerations

Distributors list this product as obsolete. Verify compatible substitutes such as the ISO154 series or other TI digital isolators with matching channel count and isolation ratings. Ensure any replacement maintains the same package dimensions and pin configuration for direct board compatibility.