MAX14931

RECOMMENDED FOR NEW DESIGNS

4-Channel, 1kVRMS, and 2.75kVRMS, Digital Isolators

Industry's Fastest and Most Flexible Digital Isolators Allow Direct Interfacing to Low Voltage (1.8V) Devices

Data Sheet (Rev. 11) Product Selection Table
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Overview

  • Robust Galvanic Isolation of Digital Signals
    • Withstands up to 2.75kVRMS for 60s (VISO) (MAX14930–MAX14932)
    • Constinuously Withstands 443VRMS (VIOWM) (MAX14930–MAX14932)
    • 630VPK Repetitive Peak Voltage (VIORM) (MAX14930–MAX14932)
    • Withstands ±10kV Surge per IEC 61000-4-5
  • Interfaces Directly with Most Micros and FPGAs
    • Accepts 1.71V to 5.5V Supplies
  • Many Options Support Broad Applications
    • 3 Data Rates (1Mbps, 25Mbps, 150Mbps)
    • 3 Channel Direction Configuration
    • 2 Output Default States (High or Low)
    • 3 Packages (4mm or 8mm Creepage and Clearance)
  • Low Power Consumption at High Data Rates
    • At 1.8V:
      • 2.5mA per Channel Typical at 1Mbps
      • 5.25mA per Channel Typical at 100Mbps
    • At 3.3V:
      • 2.6mA per Channel Typical at 1Mbps
      • 7.1mA per Channel Typical at 100Mbps

The MAX14930–MAX14932 are a family of 4-channel 2.75kVRMS digital isolators utilizing Maxim’s proprietary process technology. The MAX14130–MAX14131 are 4-channel 1kVRMS digital isolators in smaller footprint QSOP packages. For applications requiring 5kVRMS of isolation, see the MAX14934–MAX14936. The MAX14930–MAX14932 family transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C.

The MAX14930–MAX14932 family offers all three possible unidirectional channel configurations to accommodate any 4-channel design; including SPI, RS-232, RS-485, and digital I/O applications. For applications requiring bidirectional channels, such as I2C, see the MAX14933.

Devices are available with data rates from DC up to 1Mbps, 25Mbps, or 150Mbps. Each device is also available in either a default high or default low configuration.The default is the state an output goes to when its input is unpowered. See the Product Selector Guide and Ordering Information for the 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 MAX14930–MAX14932 are available in both a 16-pin wide body (10.3mm x 7.5mm) and narrow body (9.9mm x 3.9mm) SOIC package. The MAX14130–MAX14131 are available in a 16-pin (6mm x 5mm) QSOP package. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

Applications

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Multichannel Isolation Applications
  • Isolated SPI, RS-232, RS-485/RS-422
  • Medical Systems
MAX14931
4-Channel, 1kVRMS, and 2.75kVRMS, Digital Isolators
MAX14130, MAX14131, MAX14930, MAX14931, MAX14932: Functional Diagram
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Safety and Regulatory Compliance 1

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Tools & Simulations

IBIS Model 1

Evaluation Kits

MAX1493XWEVKIT

Evaluation Kit for the MAX14130/MAX14131/MAX14930/MAX14931/MAX14932/MAX14934/MAX14935 and MAX14936

Buy Now View Details

Features and Benefits

  • Ease of Use
    • Easy Powering Through Micro-USB or Test Points
    • SMA Connectors to Connect to External Equipment
  • Guaranteed Up to 5kVRMS Isolation (for the Wide-Body SOIC Version)
    • Also Evaluates the 2.75KVRMS Versions.

Product Details

The MAX1493X evaluation kit (EV kit) demonstrates the functionality of the MAX1493X 4-channel, unidirectional, digital isolators in a 16-pin, SOIC surface-mount package. The functionality and performance of the QSOP versions (MAX1413x) can be tested indirectly by using this EVkit populated with any of the equivalent narrow or wide SOIC (MAX1493x) devices. The functionality and electrical performance of the QSOP versions are identical to their corresponding SOIC versions. The EV kit features two independent isolated power supplies independently adjustable to +5V.

Applications

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Multichannel Isolation Applications
  • Isolated SPI, RS-232, RS-485/RS-422
  • Medical Systems

MAX1493XSEVKIT

Evaluation Kit for the MAX14130/MAX14131/MAX14930/MAX14931/MAX14932/MAX14934/MAX14935 and MAX14936

Buy Now View Details

Features and Benefits

  • Ease of Use
    • Easy Powering Through Micro-USB or Test Points
    • SMA Connectors to Connect to External Equipment
  • Guaranteed Up to 5kVRMS Isolation (for the Wide-Body SOIC Version)
    • Also Evaluates the 2.75KVRMS Versions.

Product Details

The MAX1493X evaluation kit (EV kit) demonstrates the functionality of the MAX1493X 4-channel, unidirectional, digital isolators in a 16-pin, SOIC surface-mount package. The functionality and performance of the QSOP versions (MAX1413x) can be tested indirectly by using this EVkit populated with any of the equivalent narrow or wide SOIC (MAX1493x) devices. The functionality and electrical performance of the QSOP versions are identical to their corresponding SOIC versions. The EV kit features two independent isolated power supplies independently adjustable to +5V.

Applications

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Multichannel Isolation Applications
  • Isolated SPI, RS-232, RS-485/RS-422
  • Medical Systems
MAX1493XWEVKIT
Evaluation Kit for the MAX14130/MAX14131/MAX14930/MAX14931/MAX14932/MAX14934/MAX14935 and MAX14936
MAX1493XSEVKIT
Evaluation Kit for the MAX14130/MAX14131/MAX14930/MAX14931/MAX14932/MAX14934/MAX14935 and MAX14936

Reference Designs

MAXREFDES1154
MAXREFDES1154
MAXREFDES1154 Circuits from the lab

Configurable 4-Channel RTD/TC Measurement System Using the MAX11410

View Detailed Reference Design

Features and Benefits

  • Highly accurate measurement
  • Four channels
  • Each channel can be configured as either RTD or TC input
  • Supports 2-wire and 3-wire RTD
  • Supports all types of thermocouple
  • Thermocouple with RTD for cold junction compensation
  • Sensor open detection
  • 24V input protection
  • Isolated power and data
  • Board-level calibration
maxrefdes165 board
maxrefdes165 board
maxrefdes165 kit
MAXREFDES165 Circuits from the lab

Four-Channel IO-Link Master

View Detailed Reference Design

Features and Benefits

Features:

  • Fully IO-Link Version 1.1 compliant
  • TMG TE IO-Link master stack
  • Easy-to-Use IO-Link Device Tool V5 from TMG
  • 4 IO-Link master ports
  • Ships with all required cables
  • Field-update programmable

Competitive Advantages

  • Simultaneous four-port operation
  • Easy-to-use GUI
  • IODD import
MAXREFDES145 Reference Design Block Diagram
MAXREFDES145 Reference Design Block Diagram
MAXREFDES145
MAXREFDES145 System Board
MAXREFDES145 Circuits from the lab

8-Channel IO-Link Master

View Detailed Reference Design

Features and Benefits

  • Fully IO-Link Version 1.1 Compliant
  • TEConcept IO-Link Master Stack
  • Easy-to-Use TEConcept TC Tool
  • 8 IO-Link Master Ports
  • Ships with All Cables Needed
  • Field Update Programmable

Competitive Advantages

  • Simultaneous 8-Port Operation
  • Easy-to-Use GUI
  • IODD Import
MAXREFDES1154
Configurable 4-Channel RTD/TC Measurement System Using the MAX11410
MAXREFDES1154
MAXREFDES165
Four-Channel IO-Link Master
maxrefdes165 board
maxrefdes165 kit
MAXREFDES145
8-Channel IO-Link Master
MAXREFDES145 Reference Design Block Diagram
MAXREFDES145
MAXREFDES145 System Board

Latest Discussions

2 Years Ago
MAX14931C (150Mbps) is used between a DSP and an ADC. The datasheet defines the propagation delay for tpLH and tpHL separately. Should I consider the overall delay in 1 clock cycle to be tpHL + tpLH? or should I consider only a maximum of tpLH and tpHL?
View related discussion on EngineerZone®

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