SI8641ET-IS2R

Digital Isolators Overview

The SI8641ET-IS2R is a four-channel digital isolator from the Si864x series, manufactured by Skyworks Solutions. It utilizes capacitive coupling technology to provide electrical isolation between circuits. The device features three unidirectional channels in the forward direction and one channel in the reverse direction. It operates within a supply voltage range of 2.375 V to 5.5 V. Key electrical specifications include an insulation voltage of 5000 Vrms, a data rate of 150 Mb/s, and a propagation delay of 8 ns. The rise and fall times are both 4 ns, with a pulse width distortion of 4.5 ns. The component is housed in a 16-SOIC package and is supplied in a reel format.

Digital Isolators Feature Summary

• Provides high-speed digital signal transmission across isolation barriers using capacitive coupling technology.
• Offers flexible channel configuration with three forward and one reverse unidirectional path for general-purpose applications.
• Includes a shutdown function to minimize power consumption when the device is not actively transmitting data.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• Power metering and energy management interfaces

Digital Isolators Procurement Notes

Verify the specific suffix IS2R indicates the reel packaging format distinct from tube variants. Confirm the 5000 Vrms insulation rating matches system safety requirements. Ensure the SOIC-16 footprint aligns with PCB layout constraints. Check for AEC-Q100 qualification if automotive reliability standards apply to the end application.

Digital Isolators Selection Notes

Select this part when high common-mode transient immunity and low propagation delay are critical. Compare against lower insulation voltage variants if system requirements permit reduced isolation ratings. Consider the power consumption profile relative to other channels in the Si864x family for multi-channel designs.

Digital Isolators Part Context

This component belongs to the Si864x family of digital isolators, which are designed for robust performance in noisy environments. The family offers various insulation levels and channel configurations to suit different interface needs. The SI8641ET-IS2R specifically targets applications demanding 5 kV isolation with high-speed data integrity.

Digital Isolators Replacement Considerations

Direct substitutes within the same series include SI8641ET-IS2 (tube package) or SI8641BB-AU for automotive-grade options with similar pinouts but potentially different insulation ratings. Verify functional equivalence before substitution.