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Two-Channel, Low-Power, 3kVRMS and 5kVRMS Digital Isolators

Reduce Power Consumption and Improve Transient Immunity

Product Details

The MAX12930/MAX12931 are a family of 2-channel, 3kV/5kVRMS digital galvanic isolators using Maxim’s proprietary process technology. These devices transfer digital signals between circuits with different power domains while using as little as 0.65mW per channel at 1Mbps with 1.8V.

The two channels of the MAX12931 transfer data in opposite directions, and this makes the MAX12931 ideal for isolating the TX and RX lines of a transceiver. The MAX12930 features two channels transferring data in the same direction.

Both devices are available with a maximum data rate of either 25Mbps or 150Mbps and with the default outputs that are either high or low. The default is the state the output assumes when the input is not powered, or if the input is open-circuit. See the Ordering Information for suffixes associated with each option. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators.

The MAX12930/MAX12931 are available in an 8-pin, narrow-body SOIC package. In addition, the MAX12931 is available in a 16-pin, wide-body SOIC package. The package material of the 8-pin narrow-body SOIC package has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. The package material of the 16-pin wide-body SOIC package has a CTI of 600V, which gives it a group I rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

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Key Features

  • Robust Galvanic Isolation of Digital Signals
    • Withstands 5kVRMS for 60s (VISO) Wide-Body
    • Withstands 3kVRMS for 60s (VISO) Narrow-Body
    • Continuously Withstands 848VRMS (VIOWM) Wide-Body
    • Continuously Withstands 445VRMS (VIOWM) Narrow-Body
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Options to Support a Broad Range of Applications
    • 2 Data Rates (25Mbps/150Mbps)
    • 2 Channel Direction Configurations
    • 2 Output Default States (High or Low)
  • Low Power Consumption
    • 1.3mW per Channel at 1Mbps with VDD = 3.3V
    • 3.3mW per Channel at 100Mbps with VDD = 1.8V

Applications/Uses

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Isolation Application
  • Isolated RS232, RS-485/RS-422, CAN
  • Medical Systems
Parametric specs for Digital Isolators
# Channels 2
Insulation Rating 3000VRMS
5000VRMS
# Uni-directional Inputs (Side A) 2
# Uni-directional Inputs (Side B) -
Uni-directional Data Rate (Mbps) (max) 25
Isolation Barrier Single
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC(N)/8
Budgetary
Price (See Notes)
$1.34 @1k
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Simplified Block Diagram

MAX12930, MAX12931: Functional Diagrams MAX12930, MAX12931: Functional Diagrams Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Three types of evaluation boards are available to support the narrowbody and wide-body package types. Two boards are fully assembled, each with a MAX12931 narrow-body or MAX12931 wide-body isolator, and the third generic board has U1 unpopulated allowing the user to select a device from the family of narrow-body MAX12930/ MAX12931 isolators.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XSEVKIT# comes with U1 unpopulated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • 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
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Three types of evaluation boards are available to support the narrowbody and wide-body package types. Two boards are fully assembled, each with a MAX12931 narrow-body or MAX12931 wide-body isolator, and the third generic board has U1 unpopulated allowing the user to select a device from the family of narrow-body MAX12930/ MAX12931 isolators.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XSEVKIT# comes with U1 unpopulated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • 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
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Two types of evaluation boards are available to support the narrowbody and wide-body package types.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XEVKIT# comes with U1 populated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+, MAX12931BAWE+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3kVRMS Isolation (for the Narrow-Body SOIC Package) for 60s
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Two types of evaluation boards are available to support the narrowbody and wide-body package types.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XEVKIT# comes with U1 populated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+, MAX12931BAWE+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3kVRMS Isolation (for the Narrow-Body SOIC Package) for 60s
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Two types of evaluation boards are available to support the narrowbody and wide-body package types.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XEVKIT# comes with U1 populated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+, MAX12931BAWE+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3kVRMS Isolation (for the Narrow-Body SOIC Package) for 60s
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Two types of evaluation boards are available to support the narrowbody and wide-body package types.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XEVKIT# comes with U1 populated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+, MAX12931BAWE+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3kVRMS Isolation (for the Narrow-Body SOIC Package) for 60s
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

Description

The MAX12930/MAX12931 evaluation kit (EV kit) provides a proven design to evaluate the MAX12930 or MAX12931 two channel digital isolators. Two types of evaluation boards are available to support the narrowbody and wide-body package types.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX1293XEVKIT# comes with U1 populated and supports the following digital isolators: MAX12930BASA+, MAX12930CASA+, MAX12930EASA+, MAX12930FASA+ MAX12931BASA+, MAX12931CASA+, MAX12931EASA+, MAX12931FASA+, MAX12931BAWE+

View Details

Features

  • Broad Range of Data Transfer Rates (from DC to 150Mbps)
  • Two Unidirectional Channels in the Same Direction (MAX12930) or Two Unidirectional Channels in the Opposite Direction (MAX12931)
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3kVRMS Isolation (for the Narrow-Body SOIC Package) for 60s
  • Guaranteed Up to 5kVRMS Isolation (for the Wide- Body SOIC Package) for 60s

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SIMULATION MODELS

MAX12931E IBIS Model

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SIMULATION MODELS

MAX12931F IBIS Model

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SIMULATION MODELS

MAX12931B IBIS Model

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SIMULATION MODELS

MAX12931C IBIS Model

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Digital Isolators
# Channels 2
Insulation Rating 3000VRMS
5000VRMS
# Uni-directional Inputs (Side A) 2
# Uni-directional Inputs (Side B) -
Uni-directional Data Rate (Mbps) (max) 25
Isolation Barrier Single
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC(N)/8
Budgetary
Price (See Notes)
$1.34 @1k

Key Features

  • Robust Galvanic Isolation of Digital Signals
    • Withstands 5kVRMS for 60s (VISO) Wide-Body
    • Withstands 3kVRMS for 60s (VISO) Narrow-Body
    • Continuously Withstands 848VRMS (VIOWM) Wide-Body
    • Continuously Withstands 445VRMS (VIOWM) Narrow-Body
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (50kV/µs, typ)
  • Options to Support a Broad Range of Applications
    • 2 Data Rates (25Mbps/150Mbps)
    • 2 Channel Direction Configurations
    • 2 Output Default States (High or Low)
  • Low Power Consumption
    • 1.3mW per Channel at 1Mbps with VDD = 3.3V
    • 3.3mW per Channel at 100Mbps with VDD = 1.8V

Applications/Uses

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Isolation Application
  • Isolated RS232, RS-485/RS-422, CAN
  • Medical Systems

Description

The MAX12930/MAX12931 are a family of 2-channel, 3kV/5kVRMS digital galvanic isolators using Maxim’s proprietary process technology. These devices transfer digital signals between circuits with different power domains while using as little as 0.65mW per channel at 1Mbps with 1.8V.

The two channels of the MAX12931 transfer data in opposite directions, and this makes the MAX12931 ideal for isolating the TX and RX lines of a transceiver. The MAX12930 features two channels transferring data in the same direction.

Both devices are available with a maximum data rate of either 25Mbps or 150Mbps and with the default outputs that are either high or low. The default is the state the output assumes when the input is not powered, or if the input is open-circuit. See the Ordering Information for suffixes associated with each option. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators.

The MAX12930/MAX12931 are available in an 8-pin, narrow-body SOIC package. In addition, the MAX12931 is available in a 16-pin, wide-body SOIC package. The package material of the 8-pin narrow-body SOIC package has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. The package material of the 16-pin wide-body SOIC package has a CTI of 600V, which gives it a group I rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

Mobile App

Simplified Block Diagram

MAX12930, MAX12931: Functional Diagrams MAX12930, MAX12931: Functional Diagrams Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal