Model No: SI8642BD-B-ISR
Skyworks Solutions Inc. SI8642BD-B-ISR
Manufacturer: Skyworks Solutions Inc.
SEMICON NO.: SI8642BD-B-ISR
Package: 16-SOIC
Stock: In stock
Description: Digital Isolator 5000Vrms 4 Channel 150Mbps 35kV/µs CMTI
SEMICON NO.: SI8642BD-B-ISR
Package: 16-SOIC
Stock: In stock
Description: Digital Isolator 5000Vrms 4 Channel 150Mbps 35kV/µs CMTI
Quantity :
| Mfr | Skyworks Solutions Inc. |
| Device Type | General Purpose Digital Isolator |
| Product Series | Si864x 4 Channels Digital Isolator |
| Isolation Technology | Capacitive Coupling |
| Isolation Voltage | 5000 V |
| Surge Capability | 10 kV |
| Common Mode Transient Immunity (CMTI) | 35 kV/µs (Min) / 50 kV/µs (Typ) |
| Safety Certifications | UL, CSA, VDE, CQC |
| Number of Channels | 4 |
| Data Rate (Max) | 150 Mbps |
| Propagation Delay (Max) | 13 ns |
| Supply Voltage | 2.5 V to 5.5 V / 2.375 V to 5.5 V |
| Output Type | Tri-State with ENABLE |
| Operating Temperature | –40°C to +125°C |
| Package | 16-SOIC |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
SI8642BD-B-ISR | Skyworks digital isolator Quad channel 5kVrms 150Mbps
SI8642BD-B-ISR is a quad-channel unidirectional digital isolator from Skyworks Solutions, supplied in a 16-pin wide-body SOIC tape-and-reel package configured with 2 forward and 2 reverse signal channels. Rated for 5 kVrms basic isolation with UL 1577, CSA and VDE safety certifications, it supports data rates from DC up to 150 Mbps across an independent 2.375 V to 5.5 V supply range on both sides of the barrier, delivering typical 8 ns propagation delay with Schmitt-trigger inputs and default high fail-safe output state. Built on RF-capacitive coupling technology with inherent magnetic field immunity, this industrial-grade isolator operates from -40°C to +125°C ambient temperature, consumes ultra-low supply current and requires only bypass capacitors to function, serving as a high-reliability optocoupler replacement for industrial automation, power electronics and communication interface isolation designs.
● DC to 150 Mbps wide bandwidth with 8 ns typical propagation delay preserves timing accuracy for high-speed industrial buses, data acquisition links and fast control signal paths.
● Ultra-low power consumption, typically 1.6 mA per channel at 1 Mbps and 5.5 mA per channel at 100 Mbps under 5 V supply, reduces thermal rise and lowers standby drain for battery-powered and energy-conscious systems.
● Independent dual supply rails from 2.375 V to 5.5 V enable seamless level translation between 2.5 V, 3.3 V and 5 V logic domains without external level shifting components.
● Schmitt-trigger inputs with high noise immunity reject glitches and conducted interference, maintaining stable signal integrity in electrically harsh motor drive and factory floor environments.
● Default high fail-safe output state ensures predictable system behavior when the input side loses power, while the dedicated enable pin supports unified output tri-state control for shared bus architectures.
● Excellent common-mode transient immunity and inherent magnetic field insensitivity prevent false output triggering in high-noise power converter, inverter and servo drive circuits.
● Ultra-low power consumption, typically 1.6 mA per channel at 1 Mbps and 5.5 mA per channel at 100 Mbps under 5 V supply, reduces thermal rise and lowers standby drain for battery-powered and energy-conscious systems.
● Independent dual supply rails from 2.375 V to 5.5 V enable seamless level translation between 2.5 V, 3.3 V and 5 V logic domains without external level shifting components.
● Schmitt-trigger inputs with high noise immunity reject glitches and conducted interference, maintaining stable signal integrity in electrically harsh motor drive and factory floor environments.
● Default high fail-safe output state ensures predictable system behavior when the input side loses power, while the dedicated enable pin supports unified output tri-state control for shared bus architectures.
● Excellent common-mode transient immunity and inherent magnetic field insensitivity prevent false output triggering in high-noise power converter, inverter and servo drive circuits.
This quad-channel digital isolator covers these primary application scenarios:
● Signal isolation for industrial fieldbus interfaces including RS-485, CAN, Profibus and Modbus communication ports
● Galvanic isolation barriers for switch-mode power supplies, solar inverters and motor drive control loops
● Ground loop elimination for PLC input/output modules and factory automation sensor interfaces
● Data line isolation for analog front-end and high-speed ADC sampling circuits in test and measurement equipment
● Isolation protection for battery management systems and high-voltage power monitoring modules
● Level shifting and isolation between mixed-voltage MCU, FPGA and peripheral circuits
● General-purpose signal isolation for medical, automotive auxiliary and industrial control electronic systems.
● Signal isolation for industrial fieldbus interfaces including RS-485, CAN, Profibus and Modbus communication ports
● Galvanic isolation barriers for switch-mode power supplies, solar inverters and motor drive control loops
● Ground loop elimination for PLC input/output modules and factory automation sensor interfaces
● Data line isolation for analog front-end and high-speed ADC sampling circuits in test and measurement equipment
● Isolation protection for battery management systems and high-voltage power monitoring modules
● Level shifting and isolation between mixed-voltage MCU, FPGA and peripheral circuits
● General-purpose signal isolation for medical, automotive auxiliary and industrial control electronic systems.
Alternative digital isolator models
1. SI8642ED-B-ISR: Reinforced isolation grade variant with identical channel count and pinout, offering upgraded safety ratings for stricter high-voltage system compliance requirements.
2. SI8640BD-B-ISR: Four-channel all-forward digital isolator in the same wide-body SOIC package, optimized for unidirectional signal paths requiring all channels in one direction.
3. ISO7742BDWER: Texas Instruments quad-channel 2/2 digital isolator with comparable 5 kV isolation and 150 Mbps data rate, serving as a cross-brand drop-in alternative for industrial interface designs.
4. ADUM1402ARWZ: Analog Devices quad-channel 2/2 digital isolator based on magnetic coupling technology, ideal for designs requiring an alternative isolation principle with similar performance.
1. SI8642ED-B-ISR: Reinforced isolation grade variant with identical channel count and pinout, offering upgraded safety ratings for stricter high-voltage system compliance requirements.
2. SI8640BD-B-ISR: Four-channel all-forward digital isolator in the same wide-body SOIC package, optimized for unidirectional signal paths requiring all channels in one direction.
3. ISO7742BDWER: Texas Instruments quad-channel 2/2 digital isolator with comparable 5 kV isolation and 150 Mbps data rate, serving as a cross-brand drop-in alternative for industrial interface designs.
4. ADUM1402ARWZ: Analog Devices quad-channel 2/2 digital isolator based on magnetic coupling technology, ideal for designs requiring an alternative isolation principle with similar performance.
