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Explore the Silicon Labs Isolation Portfolio

The Silicon Labs digital isolation product portfolio leverages our superior isolation and high voltage expertise to enhance power system performance, flexibility, and reliability while reducing system size and cost.

  • Digital Isolators
  • Isolated Gate Drivers
  • Current Sensors
  • Isolated FET Drivers

Digital Isolators

The Silicon Labs family of CMOS digital isolators gives designers the ability to create lower cost, smaller size, higher performance, lower power, and more reliable isolated circuits than competing optocoupler solutions. With a broad product portfolio, a proven track record of industry innovation and an unwavering commitment to engineering excellence —our isolation technology is ready to meet your isolation needs.

See Complete Digital Isolation Portfolio Below

Si86xx Digital Isolators

Si86xx Digital Isolators

The Si86xx is the industry’s highest performing, widest channel count series of unidirectional and bidirectional isolators supporting up to reinforced 5 kVrms isolation ratings. Based on Silicon Labs patented CMOS isolation technology, Si86xx isolators enable robust operation in harsh industrial applications.

Features

  • Up to 5000 VRMS isolation
  • UL, CSA, VDE certification
  • 60-year life at rated working voltage
  • High electromagnetic immunity
  • Supply voltage 2.5 to 5.5 V
  • Independent, bidirectional SDA and SCL isolation channels

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Si87xx Optocoupler Replacement Isolators

Si87xx Optocoupler Replacement Isolators

The Si871x isolators are pin-compatible, single-channel, drop-in optocoupler replacement with data rates up to 15 Mbps. These devices isolate high-speed digital signals and offer performance, reliability, and flexibility advantages not available with optocoupler solutions.

Features

  • Pin-compatible, drop-in upgrades for popular high-speed digital optocouplers
  • Performance and reliability advantages vs. optocouplers
  • Resistant to temperature, age and forward current effects
  • 10x lower FIT rate for longer service life
  • Higher common-mode transient immunity: >50 kV/μs typical
  • Lower power and forward input diode current

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Si87xx Optocoupler Replacement Isolators Sample Pack

Si87xx Optocoupler Replacement Isolators Sample Pack

The Si87xx sample pack contains six different optocoupler replacement products. Up to three samples of each of these OPNs are included:

  • Si8712AC-B-IP
  • Si8712AC-B-IS
  • Si8710AD-B-IS
  • Si8711AC-B-IP
  • Si8712BC-B-IP
  • Si8712BC-B-IS

Features:

  • PCB footprint compatible with optocouplers
  • LED emulator input
  • 3 to 30 V open collector output
  • Propagation delay: 30 ns (typical)
  • Data rates dc to 15 Mbps
  • 3.75 or 5 kV rms reinforced isolation rating
  • 50 kV/μs (typical) common-mode transient immunity
  • Temperature range: -40 to +125 °C

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Si88xx Digital Isolators with Integrated DC-DC Converter

Si88xx Digital Isolators with Integrated DC-DC Converter

The Si88xx family of devices combine high-speed digital isolators with an isolated power supply. This integrated product for signal and power isolation provides a complete isolation solution to designers. The Si88xx has up to four high-speed digital isolation channels integrated with a modified fly-back topology based DC-DC converter.

Features:

  • Precise timing on high speed 100 Mbps digital isolators, 23 ns typ prop delay
  • Transient immunity of 100 kV/µs typical
  • High electro-magnetic immunity and ultra-low emissions
  • Isolation of up to 5000 Vrms
  • Highly-reliable: 100 year lifetime
  • RoHS compliant packages: SOIC-20 wide body
  • AEC-Q100 qualified
  • Wide temperature range: -40 to +125 °C

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Si86xx Isolator Evaluation Kit

Si86xx Isolator Evaluation Kit

The Si86xx isolator evaluation kit includes several 5 kV isolators. This board is intended to simplify basic functional testing and engineering validation of various isolation product configurations for the Si86xx isolator family.

  • The evaluation board is populated with the following:
    • Si8600 5 kV bidirectional I²C isolator
    • Si8605 5 kV bidirectional I²C isolator
    • Si8621 3.75 kV 2-channel isolator
    • Si8655 1 kV 5-channel isolator
    • Si8663 5 kV 6-channel isolator
    • Si8663 3.75 kV 6-channel isolator

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ISOLATED-CAN-EK

ISOLATED-CAN-EK

Silicon Labs’ isolated CAN evaluation kit is a hardware plugin card that lets users take advantage of the new CAN peripheral on EFM32GG11 Starter Kit. This expansion card combines Silicon Labs’ powerful isolation technology with an energy-friendly 32-bit MCU on a single development and evaluation platform, simplifying CAN solution development.

Features

  • 1 x 4 pin digital isolator (Si88242ED-IS)
  • Breakout points
  • Loopback jumpers for easy evaluation
  • Termination options for CAN
  • Transformer for easy power over isolation
  • Status LEDs

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Silicon Labs' Digital Isolator Portfolio

Part Number Description View Details
Si80xx Compact Package Digital Isolators View Details
Si838x 24V Digital Input Isolator for PLCs View Details
Si86xx High Data Rate, Low Power Digital Isolators View Details
Si86xxxT High Data Rate, Low Power, 10kV Surge Isolators View Details
Si87xx Opto Pin Compatible LED Emulator Input Digital Isolators View Details
Si88xx High Data-rate, Isolators with Integrated DC-DC View Details

Isolated Gate Drivers

The Silicon Labs ISOdriver product family offers ultra-fast propagation delays for better timing margins, rock-solid operation over temperature and time, and unparalleled size and cost benefits. Isolation ratings of 1, 2.5, 3.75 and 5.0 kV are available.

See Complete Digital Isolation Portfolio Below

Si828x ISOdriver Gate Drivers

Si828x ISOdriver Gate Drivers

The Silicon Labs Si828x family is ideal for driving IGBTs used in a wide variety of inverter and motor control applications. The Si828x devices are isolated, high current gate drivers with integrated system safety and feedback functions

Features

  • 4 A IGBT driver
  • System Safety Features
  • Silicon Labs' high-performance isolation technology
  • 30 V driver-side supply voltage
  • Integrated Miller clamp
  • Power ready pin
  • Complementary driver control input
  • Integrated DC-DC converter

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Si822x/3x Isolated Gate Driver

Si822x/3x Isolated Gate Driver

The Si8220/1 are "opto-input", package and pin compatible single-channel isolated gate driver upgrades to HCPL-3120 and other optically-coupled gate drivers. These devices can connect to optocoupler external input circuits and offer significant improvements in performance and reliability.

Features

  • Integrated isolator plus dual gate drivers in one package
  • Up to 5 kVrms input-to-output differential voltage isolation
  • Withstands 1500 VDC peak driver-to-driver isolation
  • HS/LS and dual versions
  • Up to 8 MHz switching frequency
  • 0.5 A peak output (Si8230/1/2)

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Si826x ISOdrivers for Gate Drive Optocouplers

Si826x ISOdrivers for Gate Drive Optocouplers

The Silicon Labs family of Si826x ISOdrivers provides pin-compatible, drop-in upgrades for popular gate drive optocouplers. The devices are ideal for driving power MOSFETs and IGBTs used in a wide variety of inverter and motor control applications.

Features:

  • Low power diode emulator simplifies design-in process
  • 0.6 and 4.0 Amp peak output drive current
  • Rail-to-rail output voltage
  • Performance and reliability advantages vs. opto-drivers 60 ns propagation delay, independent of input drive current
  • Wide VDD range: 5 to 30 V
  • 3.75 and 5 kV reinforced isolation

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Si8285/86 Isolated Gate Driver Evaluation Kit

Si8285/86 Isolated Gate Driver Evaluation Kit

The Si8285_86 evaluation board allows system designers to evaluate the features and specifications of the Si8285 and Si8286 isolated IGBT drivers.

  • Kit features:
    • Si8285_86-EVB evaluation board
    • Si8285CD-IS Isolated IGBT Driver with Miller Clamp and Driver Power Feedback
    • Si8286CD-IS: Isolated IGBT Driver

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Si8273 Isolated Gate Driver Evaluation Kit

Si8273 Isolated Gate Driver Evaluation Kit

The board comes populated with the Si8271 and either the Si8273 version of the family and includes screw terminals for quick evaluation of the devices’ key parameters and also includes test points on each devices’ pins to accommodate direct connection to the designer’s end system.

  • Kit features:
    • Si8273ISO-EVB evaluation board
    • Si8271 - Single channel driver in 8 NB SOIC package
    • Si8273 - Dual high side/low side drivers in 16 NB SOIC package

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Silicon Labs' SoCs

Part Number Description View Details
Si828x Isolated Gate Drivers Isolated, high current gate drivers with integrated system safety and feedback functions View Details
Si827x Isolated Gate Drivers 24V Digital Input Isolator for PLCs View Details
Si8239x Isolated Gate Drivers High Data Rate, Low Power Digital Isolators View Details
Si822x/3x Isolated Gate Drivers High Data Rate, Low Power, 10kV Surge Isolators View Details
Si826x Isolated Gate Drivers Opto Pin Compatible LED Emulator Input Digital Isolators View Details

Current Sensors

The Silicon Labs Si85xx/Si890x sensor family is ideal for a broad range of applications, including ac-dc switching power supplies, isolated dc-dc supplies, UPS systems, motor control, and electronic lighting ballasts. Our Isolated AC, High-Side DC current sensors, and Isolated AC Mains Monitors provide current sensing solutions for a wide range of power applications.

See Complete Current Sensors Portfolio Below

Si8920 Isolated Amplifers

Si8920 Isolated Amplifers

The Si8920 devices are galvanically isolated analog amplifiers. The low voltage, differential input is ideal for measuring voltage across a current shunt resistor or for any place where a sensor must be isolated from the control system.

Features:

  • Temperature Range (°C): -40 to 125
  • Output Mode: Analog

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Si890x Isolated Amplifiers

Si890x Isolated Amplifiers

The Si8900/1/2 series of isolated monitoring ADCs are useful as linear signal galvanic isolators, level shifters, and/or ground loop eliminators in many applications including power-delivery systems and solar inverters.

ADC:

  • 3 input channels
  • 10-bit resolution
  • 2 µs conversion time
  • Isolated serial I/O port
  • UART (Si8900)
  • I 2C/SMbus (Si8901)
  • 2.5 MHz SPI port (Si8902)
  • Transient immunity: 45 kV/µs (typ)

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Si8540 High-Side DC Current Sensor

Si8540 High-Side DC Current Sensor

The Si8540 is a unidirectional, 36 V (max), high-side current sense amplifier for use in applications requiring current monitoring and/or control. This device draws bias current from the high-side line to which it is attached, eliminating the need for an external supply.

  • Kit features:
    • SOT23-5 package type
    • 5-36 Vcm (max)
    • 90 lcc (max)

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Si8920 Isolated Amplifier Evaluation Kit

Si8920 Isolated Amplifier Evaluation Kit

The Si8920ISO-Kit evaluation board allows for quick connection to a shunt resistor for check out of the functionality on the Si8920 isolated amplifier. The evaluation board is populated with the Si8920BC-IP device. This allows for connection to a shunt resistor that produces up to +/-200 mV at full load.

  • Kit contents:
    • Si8920-based evaluation board
    • Si8920BC-IP isolated analog amplifier
    • Information card

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Si890x Evaluation Kit

Si890x Evaluation Kit

The Si890xPWR-KIT demonstrates 50/60 Hz ac line voltage and current measurements. This EVB is housed in a plastic case with recessed connectors to protect against user electrical shock. The Si890x isolated AC mains monitor accepts a 110 or 220 vac input, and supports load currents up to 25 A (max).

  • Kit features:
    • EVB module measures:
      • AC line voltage (110 VAC or 220 VAC at 50/60 Hz)
      • AC line current (25 A max)
    • Populated with devices for all three serial port options: UART (Si8900), I²C (Si8901), SPI (Si8902) 5 kV galvanic isolation between mains side and low-voltage side
    • Digital or analog output available for evaluation

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Silicon Labs' Development Kits

Part Number Description View Details
SLWSTK6120A Dev Kit Wi-Fi WGM110 2.4 GHz View Details
AMW007-E03 AMW007 Developer Board View Details

Silicon Labs' Modules

Part Number Description View Details
WGM110E1MV2R Wizard Gecko WGM110 Wi-Fi Module View Details
RF TXRX Module Wi-Fi Chip Ant View Details
AMW006-3.2.0R RF Module Wi-Fi 96 K 1 MB 84 MHz View Details

Isolated FET Drivers

The Silicon Labs Si85xx/Si890x sensor family is ideal for a broad range of applications, including ac-dc switching power supplies, isolated dc-dc supplies, UPS systems, motor control ,and electronic lighting ballasts. Our Isolated AC, High-Side DC current sensors, and Isolated AC Mains Monitors provide current sensing solutions for a wide range of power applications.

Si8751/52 Isolated FET Driver

Si8751/52 Isolated FET Driver

The Si875x enables new pathways to the creation of custom Solid State Relay (SSR) configurations. The Si875x integrates robust isolation technology with an SSR FET driver.

  • Kit features:
    • Drives user-selected external FETs
    • Choice of digital input control (Si8751) or diode emulation control (Si8752)
    • Internally generated secondary side power supply
    • 10 V output with 1 mA input current
    • As fast as 82 μs turn-on time and 46 us turn-off time
    • Active Miller Clamp to prevent unintended turn-on and reduce inductive chatter

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Si8751 Isolated FET Driver Evaluation Kit

Si8751 Isolated FET Driver Evaluation Kit

The Si8751-KIT evaluation board demonstrates how easy it is to replace electromechanical or solid state relays using the Si875x with a cost, power, and performance optimized FET.

  • Kit contents:
    • Si875x based evaluation board
    • Information card

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