SI8640AB-B-ISR

Digital Isolators Overview

The SI8640AB-B-ISR is a Skyworks Solutions digital isolator featuring four independent channels with unidirectional signal paths. It utilizes capacitive coupling technology to provide 2500 Vrms isolation voltage. The device supports data rates up to 1 Mb/s and operates within a supply voltage range of 2.5 V to 5.5 V. Key electrical parameters include a propagation delay of 35 ns, rise/fall times of 4 ns, and pulse width distortion of 25 ns. It functions across an extended temperature range from -40°C to +125°C and is housed in a 16-pin SOIC-Wide package.

Digital Isolators Feature Summary

• Provides robust galvanic isolation between circuits using high-reliability capacitive coupling technology.
• Offers four independent signal channels for efficient multi-channel system integration.
• Ensures signal integrity with low propagation delay and minimal pulse width distortion.
• Supports operation over a wide industrial temperature range for demanding environments.

Digital Isolators Applications

• Industrial automation control systems
• Power management circuit monitoring
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'B' indicates the correct insulation rating and channel configuration for your design requirements. Confirm that the 16-SOIC Wide package dimensions align with your PCB layout constraints. Ensure the 1 Mbps data rate specification meets the timing requirements of your application. Check for AEC-Q100 qualification if automotive reliability standards are required for the project.

Digital Isolators Selection Notes

Select this component when four unidirectional isolated channels are required at 1 Mbps speeds. Consider the 2500 Vrms isolation level against system safety standards. Evaluate the 35 ns propagation delay for timing-sensitive applications. Compare power dissipation characteristics against available thermal management solutions in the target enclosure.

Digital Isolators Part Context

This part belongs to the Si864x series of general-purpose digital isolators from Skyworks Solutions. The series offers various channel counts and isolation ratings. The SI8640 variant specifically provides four channels. The 'ISR' suffix denotes the tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Digital Isolators FAQ

What is the maximum operating supply voltage for the SI8640AB-B-ISR?

The maximum operating supply voltage is 5.5 V.

Does the SI8640AB-B-ISR support bidirectional communication?

No, the device features unidirectional signal paths only.