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Six-Channel Digital Isolator

Industry's First Monolithic 600VRMS Digital Isolator

Product Details

Key Features

Parametric specs for Digital Isolators
# Channels 6
Insulation Rating 600VRMS
# Uni-directional Inputs (Side A) 2
# Uni-directional Inputs (Side B) 2
# Bi-directional Channels 2
Uni-directional Data Rate (Mbps) (max) 50
Bi-directional Data Rate (Mbps) (max) 2
Oper. Temp. (°C) -40 to +125
Package/Pins QSOP/16
Budgetary
Price (See Notes)
2.07
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Simplified Block Diagram

Technical Docs

Data Sheet Six-Channel Digital Isolator Jul 18, 2019

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Parameters

Parametric specs for Digital Isolators
# Channels 6
Insulation Rating 600VRMS
# Uni-directional Inputs (Side A) 2
# Uni-directional Inputs (Side B) 2
# Bi-directional Channels 2
Uni-directional Data Rate (Mbps) (max) 50
Bi-directional Data Rate (Mbps) (max) 2
Oper. Temp. (°C) -40 to +125
Package/Pins QSOP/16
Budgetary
Price (See Notes)
2.07

Key Features

  • Complete Digital Isolation Solution
    • 600VRMS Isolation for 60 Seconds
    • Short-Circuit Protection on Unidirectional Outputs
    • 200VRMS Working Isolation Voltage
    • Four Unidirectional Signal Paths: 2-In/2-Out
    • Two Bidirectional Open-Drain Signal Paths
    • 50Mbps (max) Unidirectional Data Rate
    • 2Mbps (max) Bidirectional Data Rate
  • Compatible with Many Interface Standards
    • I2C
    • SPI
    • RS-232, RS-485/RS-422
    • SMBus, PMBus Interfaces

Applications/Uses

  • Battery Management
  • Industrial Control Systems
  • Isolated I2C, SPI, RS-232/422/485 Interfaces
  • Medical Systems
  • Telecommunication Systems

Description

The MAX14851 is a six-channel digital isolator utilizing Maxim’s proprietary process technology, whose monolithic design provides a compact and low-cost transfer of digital signals between circuits with different power domains. The technology enables low power consumption and high channel density.

The four unidirectional channels are each capable of DC to 50Mbps, with two of the four channels passing data across the isolation barrier in each direction. The two bidirectional channels are open-drain, each capable of data rates from DC to 2Mbps.

Independent 3.0V to 5.5V supplies on each side of the isolator also make it suitable for use as a level translator. The MAX14851 can be used for isolating SPI buses, I2C buses, RS-232, RS-485/RS-422 buses, and general-purpose isolation. When used as a bus isolator, extra channels are available for power monitoring and reset signals.

The MAX14851 is available in a 16-pin QSOP (3.9mm x 4.94mm) package. The device is specified over the -40°C to +125°C temperature range.

The MAX14851 is a functional replacement for the MAX14850, and shares the same pin configurations as the MAX14850.

Simplified Block Diagram

MAX14851: Functional Diagram MAX14851: Functional Diagram Zoom icon

Technical Docs

Data Sheet Six-Channel Digital Isolator Jul 18, 2019

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 .