SI8460AA-B-IS1R

Digital Isolators Overview

The SI8460AA-B-IS1R is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features six unidirectional channels with capacitive coupling technology, providing galvanic isolation between circuits operating at different voltage levels. The device supports a data rate of 1 Mb/s and offers an insulation voltage of 1000 Vrms. It operates within a supply voltage range of 2.7 V to 5.5 V and includes a shutdown function. Key electrical parameters include a propagation delay of 35 ns, a rise time of 5 ns, and a fall time of 3.7 ns. The component is housed in a 16-SOIC package and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides galvanic isolation using capacitive coupling technology for noise immunity
• Integrates six unidirectional signal channels in a single compact package
• Includes a dedicated shutdown pin to minimize power consumption during idle states

Digital Isolators Applications

• General-purpose digital signal isolation in industrial systems
• Isolating microcontroller interfaces from high-voltage peripheral circuits
• Protecting low-voltage control logic in noisy electromagnetic environments

Digital Isolators Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before procurement, as this indicates the component may be discontinued or phased out by the manufacturer. Confirm that the current design can accommodate potential future supply constraints or required redesigns. Ensure the specific SOIC-Narrow-16 package dimensions match the PCB footprint requirements. Validate that the 1000 Vrms insulation rating meets the safety standards applicable to the target application environment.

Digital Isolators Selection Notes

Select this component when six isolated channels are required for unidirectional signal transmission at speeds up to 1 Mb/s. The 1000 Vrms isolation level is suitable for applications with moderate voltage differences between domains. Consider the 35 ns propagation delay if timing precision is critical. The wide operating temperature range makes it appropriate for harsh industrial conditions. Compare against higher-speed variants like the SI8462 series if data rates exceed 1 Mb/s.

Digital Isolators Part Context

This part belongs to the SI846x family of digital isolators from Skyworks Solutions. These devices utilize proprietary CMOS silicon dioxide (SiO2) isolation technology. The SI8460 variant specifically targets cost-sensitive applications requiring multiple channels but lower data rates compared to the SI8461 or SI8462 series. The 'AA' suffix typically denotes the 1000 Vrms insulation rating, while 'B' indicates the specific channel configuration and package type.

Digital Isolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, alternative components should be evaluated based on channel count, isolation voltage, and data rate specifications.