SI8401AA-B-IS The Skyworks Solutions SI8401AA-B-IS is a 2-channel digital isolator designed for I2C and SMBus applications. It offers 1000Vrms isolation and operates at data rates up to 1 Mbps.
Mfr Part #:

SI8401AA-B-IS

Available from 1 distributors
Mfr Name: Skyworks Solutions
Skyworks Solutions
The Skyworks Solutions SI8401AA-B-IS is a 2-channel digital isolator designed for I2C and SMBus applications. It offers 1000Vrms isolation and operates at data rates up to 1 Mbps.
Total Stock: 96 pcs
$ Price Range: $3.51

SI8401AA-B-IS Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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96 pcs
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SI8401AA-B-IS Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Channel Type
Common Mode Transient Immunity (Min)
Industrial Grade
Inputs
Isolated Power
Lead Spacing
Medical Grade
Military Grade
Mounting Type
Number of Channels
Operating Temperature
Power Dissipation
Propagation Delay
Supplier Device Package
Tape & Reel
Technology
Type
Voltage

SI8401AA-B-IS Description

Short technical summary and product information.

The Skyworks Solutions SI8401AA-B-IS is a digital isolator featuring two bidirectional channels for I2C and SMBus serial port applications. Based on proprietary RF isolation technology, it provides shorter propagation delays, lower power consumption, and more stable operation compared to optocouplers. This device supports I2C clocks up to 1.7 MHz and offers open-drain outputs with 35 mA sink capability.

 

Key electrical specifications include 1000Vrms isolation voltage and a maximum data rate of 1 Mbps. The operating supply voltage ranges from 3.0 to 5.5 V, with a wide operating temperature range of -40°C to 125°C. Common Mode Transient Immunity is rated at 25 kV/µs typical.

 

Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount package, the SI8401AA-B-IS is suitable for applications requiring galvanic isolation in compact designs. Its technology is based on capacitive coupling, offering high electromagnetic immunity and protection against data errors when unpowered devices are inserted into powered systems.

SI8401AA-B-IS Quick Information

Product Type: Digital Isolator
Series: Si840x
Canonical Name: Skyworks Solutions SI8401AA-B-IS 2-Channel Digital Isolator
Subcategory: Digital Isolator ICs

SI8401AA-B-IS Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SI8401AA-B-IS Estimated Pricing

Qty Low High
1+ $3.51 $3.51

Estimated market price range - modelled values for guidance only, not live distributor offers.

SI8401AA-B-IS Features

  • Two bidirectional I2C/SMBus channels.
  • 1000Vrms isolation voltage rating.
  • Maximum data rate of 1 Mbps.
  • Wide -40°C to 125°C operating temperature.
  • Compact 8-SOIC surface mount package.

SI8401AA-B-IS Applications

  • Isolated I2C and SMBus serial ports.
  • Digital power supply communications.
  • Power over Ethernet systems.
  • Motor control system isolation.
  • Hot-swap application protection.

SI8401AA-B-IS FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum isolation voltage of the SI8401AA-B-IS?

The maximum isolation voltage is 1000 Vrms.

How many channels does the SI8401AA-B-IS have?

It has 2 channels.

What is the maximum data rate supported by the SI8401AA-B-IS?

The maximum data rate is 1 Mbps.

What is the package type of the SI8401AA-B-IS?

The package type is 8-SOIC.

What is the operating temperature range of the SI8401AA-B-IS?

The operating temperature range is -40°C to 125°C.

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