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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.
Technical Documents
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Technical Documentation
Featured Blogs
Customer Testimonials
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Featured Products
MAX22531 Field-Side Self-Powered, 4-Channel, 12-bit, Isolated ADC
The MAX22530–MAX22532 are galvanically isolated, 4-channel, multiplexed, 12-bit, analog-to-digit...
- Enable Robust Detection of Multichannel Analog/Binary Inputs
- Withstands 3.5kVRMS Isolation for 60s (VISO) for the SSOP Package
- Withstands 5kVRMS Isolation for 60s (VISO) for the Wide SOIC Package
- 5.5mm of Creepage and Clearance for 20-pin or 28-pin SSOP Package
- 8mm of Creepage and Clearance for 16-pin Wide SOIC Package
- Group II CTI Package Material
- Reduces BOM and Board Space Through High Integration
- Field-Side Self-Powered with Integrated DC-DC Supply
- 12-bit, 20ksps Per-Channel ADC
- Programmable Threshold Comparators for each Channel
- Isolation for both Data and DC-DC Supply
- Integrated 1.8V Reference
- Increase System “Up Time” and Simplifies System Design & Maintenance
- Field-Side ADC Functionality Diagnostics
- Field-Side Continuous Power Monitoring
- Communication System Self-Diagnostics
- Flexible Control and Interface
- Programmable Upper and Lower Input Threshold Enable Programmable Hysteresis
- Comparator Output (COUT_) Pins for Fastest Response
- SPI Interface with CRC Option
- Precision Internal Reference ±1% (typ)
- -40°C to +125°C Operating Temperature Range
MAX22531EVKIT Evaluation Kit for the MAX22530/MAX22531
The MAX2253x evaluation kit (EV kit) provides the hardware and software necessary to evaluate th...
- Easy Evaluation of MAX22530/MAX22531
- EV kit is USB Powered, No Field -Side Supply Required
- All Input Accessible
- Windows 7, Windows 8.1, and Windows 10- Compatible Software
- Proven PCB Layout
- Fully Assembled and Tested
- RoHS Compliant
MAX22246CWEVKIT Evaluation Kit for the MAX22245/MAX22246
The MAX22245/MAX22246 evaluation kits (EV kits) provide a proven design to evaluate the MAX22245...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- MAX22245 with 2:0 Channel Configuration and MAX22246 with 1:1 Channel Configuration
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed up to 5kVRMS Isolation for 60s
- -40°C to +125° C Temperature Range
- Proven PCB Layout
MAX2224XWEVKIT Evaluation Kit for the MAX22245/MAX22246
The MAX22245/MAX22246 evaluation kits (EV kits) provide a proven design to evaluate the MAX22245...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- MAX22245 with 2:0 Channel Configuration and MAX22246 with 1:1 Channel Configuration
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed up to 5kVRMS Isolation for 60s
- -40°C to +125° C Temperature Range
- Proven PCB Layout
MAX22245 Reinforced, Fast, Low-Power Two-Channel Digital Isolators
The MAX22245/MAX22246 are a family of 2-channel reinforced, fast, low-power digital galvanic iso...
- Reinforced Galvanic Isolation for Fast Digital Signals
- Wide-Body 8-Pin SOIC with 8mm of Creepage and Clearance
- Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
- High CMTI (50kV/µs, typ)
- Low Power Consumption
- 0.76mW per Channel at 1Mbps with VDD = 1.8V
- 1.42mW per Channel at 1Mbps with VDD = 3.3V
- 3.2mW per Channel at 100Mbps with VDD = 1.8V
- Options to Support a Broad Range of Applications
- 2 Maximum Data Rates (200Mbps, 25Mbps)
- 2 Channel Direction Configurations
- 2 Output Default States (High or Low)
MAX22246 Reinforced, Fast, Low-Power Two-Channel Digital Isolators
The MAX22245/MAX22246 are a family of 2-channel reinforced, fast, low-power digital galvanic iso...
- Reinforced Galvanic Isolation for Fast Digital Signals
- Wide-Body 8-Pin SOIC with 8mm of Creepage and Clearance
- Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
- High CMTI (50kV/µs, typ)
- Low Power Consumption
- 0.76mW per Channel at 1Mbps with VDD = 1.8V
- 1.42mW per Channel at 1Mbps with VDD = 3.3V
- 3.2mW per Channel at 100Mbps with VDD = 1.8V
- Options to Support a Broad Range of Applications
- 2 Maximum Data Rates (200Mbps, 25Mbps)
- 2 Channel Direction Configurations
- 2 Output Default States (High or Low)
MAX14431FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX14432FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX14430FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX12935FWEVKIT Evaluation Kit for the MAX12934/MAX12935
The MAX12934/MAX12935 evaluation kit (EV kit) provides a proven design to evaluate the MAX12934 ...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Two Unidirectional Channels in the Same Direction (MAX12934) or Two Unidirectional Channels in the Opposite Direction (MAX12935)
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed Up to 5kVRMS Isolation (for the Wide-Body SOIC Package) for 60s
MAX22531 Field-Side Self-Powered, 4-Channel, 12-bit, Isolated ADC
The MAX22530–MAX22532 are galvanically isolated, 4-channel, multiplexed, 12-bit, analog-to-digit...
- Enable Robust Detection of Multichannel Analog/Binary Inputs
- Withstands 3.5kVRMS Isolation for 60s (VISO) for the SSOP Package
- Withstands 5kVRMS Isolation for 60s (VISO) for the Wide SOIC Package
- 5.5mm of Creepage and Clearance for 20-pin or 28-pin SSOP Package
- 8mm of Creepage and Clearance for 16-pin Wide SOIC Package
- Group II CTI Package Material
- Reduces BOM and Board Space Through High Integration
- Field-Side Self-Powered with Integrated DC-DC Supply
- 12-bit, 20ksps Per-Channel ADC
- Programmable Threshold Comparators for each Channel
- Isolation for both Data and DC-DC Supply
- Integrated 1.8V Reference
- Increase System “Up Time” and Simplifies System Design & Maintenance
- Field-Side ADC Functionality Diagnostics
- Field-Side Continuous Power Monitoring
- Communication System Self-Diagnostics
- Flexible Control and Interface
- Programmable Upper and Lower Input Threshold Enable Programmable Hysteresis
- Comparator Output (COUT_) Pins for Fastest Response
- SPI Interface with CRC Option
- Precision Internal Reference ±1% (typ)
- -40°C to +125°C Operating Temperature Range
MAX22531EVKIT Evaluation Kit for the MAX22530/MAX22531
The MAX2253x evaluation kit (EV kit) provides the hardware and software necessary to evaluate th...
- Easy Evaluation of MAX22530/MAX22531
- EV kit is USB Powered, No Field -Side Supply Required
- All Input Accessible
- Windows 7, Windows 8.1, and Windows 10- Compatible Software
- Proven PCB Layout
- Fully Assembled and Tested
- RoHS Compliant
MAX22246CWEVKIT Evaluation Kit for the MAX22245/MAX22246
The MAX22245/MAX22246 evaluation kits (EV kits) provide a proven design to evaluate the MAX22245...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- MAX22245 with 2:0 Channel Configuration and MAX22246 with 1:1 Channel Configuration
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed up to 5kVRMS Isolation for 60s
- -40°C to +125° C Temperature Range
- Proven PCB Layout
MAX2224XWEVKIT Evaluation Kit for the MAX22245/MAX22246
The MAX22245/MAX22246 evaluation kits (EV kits) provide a proven design to evaluate the MAX22245...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- MAX22245 with 2:0 Channel Configuration and MAX22246 with 1:1 Channel Configuration
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed up to 5kVRMS Isolation for 60s
- -40°C to +125° C Temperature Range
- Proven PCB Layout
MAX22245 Reinforced, Fast, Low-Power Two-Channel Digital Isolators
The MAX22245/MAX22246 are a family of 2-channel reinforced, fast, low-power digital galvanic iso...
- Reinforced Galvanic Isolation for Fast Digital Signals
- Wide-Body 8-Pin SOIC with 8mm of Creepage and Clearance
- Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
- High CMTI (50kV/µs, typ)
- Low Power Consumption
- 0.76mW per Channel at 1Mbps with VDD = 1.8V
- 1.42mW per Channel at 1Mbps with VDD = 3.3V
- 3.2mW per Channel at 100Mbps with VDD = 1.8V
- Options to Support a Broad Range of Applications
- 2 Maximum Data Rates (200Mbps, 25Mbps)
- 2 Channel Direction Configurations
- 2 Output Default States (High or Low)
MAX22246 Reinforced, Fast, Low-Power Two-Channel Digital Isolators
The MAX22245/MAX22246 are a family of 2-channel reinforced, fast, low-power digital galvanic iso...
- Reinforced Galvanic Isolation for Fast Digital Signals
- Wide-Body 8-Pin SOIC with 8mm of Creepage and Clearance
- Up to 200Mbps Maximum Data Rate
- Withstands 5kVRMS for 60s (VISO)
- Continuously Withstands 1500VRMS (VIOWM)
- Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
- High CMTI (50kV/µs, typ)
- Low Power Consumption
- 0.76mW per Channel at 1Mbps with VDD = 1.8V
- 1.42mW per Channel at 1Mbps with VDD = 3.3V
- 3.2mW per Channel at 100Mbps with VDD = 1.8V
- Options to Support a Broad Range of Applications
- 2 Maximum Data Rates (200Mbps, 25Mbps)
- 2 Channel Direction Configurations
- 2 Output Default States (High or Low)
MAX14431FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX14432FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX14430FSEVKIT Evaluation Kit for the MAX14430/MAX14431/MAX14432
The MAX14430-MAX14432 evaluation kit (EV kit) provides a proven design to evaluate the MAX14430-...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Four Unidirectional Channels with 3 Different Channel Direction Configurations
- 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 the Narrow-Body SOIC Package for 60s
MAX12935FWEVKIT Evaluation Kit for the MAX12934/MAX12935
The MAX12934/MAX12935 evaluation kit (EV kit) provides a proven design to evaluate the MAX12934 ...
- Broad Range of Data Transfer Rates (from DC to 200Mbps)
- Two Unidirectional Channels in the Same Direction (MAX12934) or Two Unidirectional Channels in the Opposite Direction (MAX12935)
- SMA Connectors for Easy Connection to External Equipment
- Wide Power Supply Voltage Range from 1.71V to 5.5V
- Guaranteed Up to 5kVRMS Isolation (for the Wide-Body SOIC Package) for 60s
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