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Isolation ICs (also called isolator ICs) provide complete galvanic isolation between two power domains. Isolation ICs protect circuits from high common-mode transients and faults and eliminate ground loops. Isolation ICs are commonly used in industrial communications and medical applications.

Digital Signal Isolators

Our digital signal isolator products provide up to 5kV of isolation and support data rates up to 200Mbps. Digital isolators are replacing optocouplers in many applications because they offer the same isolation capability while reducing power requirements and using less board space. Products are available for use with many industry communication standards.

When used with Maxim's industrial digital input level translator and serializers, these digital isolators provide a complete digital input solution that saves design space increases reliability, and reduces power requirements.

Looking for an isolated power solution? Visit our Isolated Power page.

Isolated RS-232 Transceivers

Maxim offers two options that address RS-232 communication where isolation is required. First is...

Isolated RS-485/RS-422 Transceivers

Maxim integrates galvanic isolation in our RS-485/RS-422 transceivers to eliminate the need for ...

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Featured Products

MAX22163 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22163 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22163−MAX22166 are a family of six-channel, reinforced, fast, low-power digital galvanic ...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 16-QSOP with 4mm Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously Withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
MAX22164 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22164 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22163−MAX22166 are a family of six-channel, reinforced, fast, low-power digital galvanic ...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 16-QSOP with 4mm Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously Withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
MAX22165 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22165 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22163−MAX22166 are a family of six-channel, reinforced, fast, low-power digital galvanic ...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 16-QSOP with 4mm Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously Withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
MAX22166 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22166 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22163−MAX22166 are a family of six-channel, reinforced, fast, low-power digital galvanic ...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 16-QSOP with 4mm Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously Withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
MAX22290 Reinforced, Fast, Low-Power, Two-Channel Digital Isolators

MAX22290 Reinforced, Fast, Low-Power, Two-Channel Digital Isolators

The MAX22290/MAX22291 is a family of 2-channel reinforced, fast, low-power digital galvanic isol...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 8-SOIC with 4mm of Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.78mW per Channel at 1Mbps with VDD_ = 1.8V
    • 1.47mW per Channel at 1Mbps with VDD_ = 3.3V
    • 3.28mW per Channel at 100Mbps with VDD_ = 1.8V
  • Low Propagation Delay and Low Jitter
    • Up to 200Mbps Maximum Data Rate
    • Low Propagation Delay 7ns (typ) at VDD_ = 3.3V
    • Clock Jitter RMS 7.5ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
MAX22291 Reinforced, Fast, Low-Power, Two-Channel Digital Isolators

MAX22291 Reinforced, Fast, Low-Power, Two-Channel Digital Isolators

The MAX22290/MAX22291 is a family of 2-channel reinforced, fast, low-power digital galvanic isol...
  • AEC-Q100 Qualification for /V Devices
  • Reinforced Galvanic Isolation for Digital Signals
    • 8-SOIC with 4mm of Creepage and Clearance
    • Withstands 3kVRMS for 60s (VISO)
    • Continuously withstands 445VRMS (VIOWM)
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Low Power Consumption
    • 0.78mW per Channel at 1Mbps with VDD_ = 1.8V
    • 1.47mW per Channel at 1Mbps with VDD_ = 3.3V
    • 3.28mW per Channel at 100Mbps with VDD_ = 1.8V
  • Low Propagation Delay and Low Jitter
    • Up to 200Mbps Maximum Data Rate
    • Low Propagation Delay 7ns (typ) at VDD_ = 3.3V
    • Clock Jitter RMS 7.5ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)

MAX2256XAEVKIT Evaluation Kit for the MAX22563/MAX22564/MAX22565/MAX22566

The MAX22563−MAX22566 evaluation kits (EV kits) provide a proven design to evaluate the MAX22563...
  • Broad Range of Data Transfer Rates from DC to 200Mbps
  • MAX22563 with 3:3 Channel Configuration, MAX22564 with 4:2 Channel Configuration, MAX22565 with 5:1 Channel Configuration, and MAX22566 with 6:0 Channel Configuration
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed up to 3.75kVRMS Isolation for 60s
  • -40°C to +125°C Temperature Range
  • Proven PCB Layout

MAX22565CAEVKIT Evaluation Kit for the MAX22563/MAX22564/MAX22565/MAX22566

The MAX22563−MAX22566 evaluation kits (EV kits) provide a proven design to evaluate the MAX22563...
  • Broad Range of Data Transfer Rates from DC to 200Mbps
  • MAX22563 with 3:3 Channel Configuration, MAX22564 with 4:2 Channel Configuration, MAX22565 with 5:1 Channel Configuration, and MAX22566 with 6:0 Channel Configuration
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed up to 3.75kVRMS Isolation for 60s
  • -40°C to +125°C Temperature Range
  • Proven PCB Layout
MAX22565 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22565 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22563−MAX22566 are a family of 6-channel, reinforced, fast, low-power digital galvanic is...
  • ​AEC-Q100 Qualification for /V Devices
    • Reinforced Galvanic Isolation for Digital Signals
    • 20-SSOP with 5.5mm Creepage and Clearance
    • Withstands 3.75kVRMS for 60s (VISO)
    • Continuously Withstands 784VRMS (VIOWM)
    • Withstands ±12.8kV Surge Between GNDA and
    • GNDB with 1.2/50μs Waveform
      • High CMTI (50kV/μs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate Up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals (Pending)
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation
MAX22566 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

MAX22566 Reinforced, Fast, Low-Power, Six-Channel Digital Isolators

The MAX22563−MAX22566 are a family of 6-channel, reinforced, fast, low-power digital galvanic is...
  • ​AEC-Q100 Qualification for /V Devices
    • Reinforced Galvanic Isolation for Digital Signals
    • 20-SSOP with 5.5mm Creepage and Clearance
    • Withstands 3.75kVRMS for 60s (VISO)
    • Continuously Withstands 784VRMS (VIOWM)
    • Withstands ±12.8kV Surge Between GNDA and
    • GNDB with 1.2/50μs Waveform
      • High CMTI (50kV/μs, typ)
  • Low Power Consumption
    • 0.71mW per Channel at 1Mbps with VDD = 1.8V
    • 1.34mW per Channel at 1Mbps with VDD = 3.3V
    • 3.21mW per Channel at 100Mbps with VDD = 1.8V
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate Up to 200Mbps
    • Low Propagation Delay 7ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 11.1ps (typ)
  • Safety Regulatory Approvals (Pending)
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation