MAX14850

Six-Channel Digital Isolator

Industry's First Monolithic 600VRMS Digital Isolator


Description

The MAX14850 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 stable high-temperature performance.

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 and each is 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 MAX14850 can be used for isolating SPI busses, I2C busses, RS-232, RS-485/RS-422 busses, and general-purpose isolation. When used as a bus isolator, extra channels are available for power monitoring and reset signals.

The MAX14850 is available in a narrow body, 16-pin SO (10mm x 4mm) package. The SO package is specified over the -40°C to +125°C automotive temperature range.
MAX14850: Typical Operating Circuit MAX14850: Typical Operating Circuit Enlarge++

Key Features

  • Protection from High-Voltage Environments
    • 600VRMS Isolation for 60 Seconds
    • Short-Circuit Protection on Unidirectional Outputs
    • 200VRMS Working Isolation Voltage for 50 Years
  • Complete Digital Isolation Solution
    • 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-422/RS-485
    • SMBus, PMBus Interfaces

Applications/Uses

  • Battery Management
  • I²C, SPI, SMBus, PMBus™ Interfaces
  • Industrial Control Systems
  • Isolated RS-232, RS-485/RS-422
  • Medical Systems
  • Telecommunication Systems
Part Number Uni-directional Channels Uni-directional Inputs Uni-directional Inputs Bi-directional Channels Uni-directional Data Rate
(Mbps)
Bi-directional Data Rate
(Mbps)
Insulation Rating Uni-directional Propagation
(ns)
Bi-directional Propagation
(ns)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Budgetary
Price
Side A Side B max max max max min max See Notes
MAX14850  4 2 2 2 50 2 600 VRMS 30 100 3 5.5 -40 to +125 $1.60 @1k
See All Digital Isolators (2)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX14850PMB1:  MAX14850PMB1 Peripheral Module
MAXPMBAE:  Maxim Analog Essentials Collection of Peripheral Modules
MAX14850EVKIT:  Evaluation Kit for the MAX14850
MAXSANTAFEEVSYS:  Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

Technical Documents

User Guide 5885 MAXREFDES32# ZedBoard Quick Start Guide
User Guide 5866 MAXREFDES71# ZedBoard Quick Start Guide
User Guide 5847 Alameda (MAXREFDES24#) ZedBoard Quick Start Guide
User Guide 5846 Alameda (MAXREFDES24#) LX9 Quick Start Guide
Reference Schematic 5839 Alameda (MAXREFDES24#): 4-Channel Analog Output
User Guide 5746 Fremont (MAXREFDES6#) ZedBoard Quick Start Guide
User Guide 5745 Fremont (MAXREFDES6#) Nexys 3 Quick Start Guide
User Guide 5744 Carmel (MAXREFDES18#) ZedBoard Quick Start Guide
User Guide 5743 Carmel (MAXREFDES18#) LX9 Quick Start Guide
Sub-System Board 5742 Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
Sub-System Board 5721 Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
User Guide 5651 Campbell (MAXREFDES4#) ZedBoard Quick Start Guide
User Guide 5639 Santa Fe (MAXREFDES5#) ZedBoard Quick Start Guide
User Guide 5630 Fresno (MAXREFDES11#) ZedBoard Quick Start Guide
User Guide 5614 Corona (MAXREFDES12#) ZedBoard Quick Start Guide
User Guide 5613 Corona (MAXREFDES12#) Nexys 3 Quick Start Guide
Sub-System Board 5611 Corona (MAXREFDES12#): Isolated Industrial Octal Digital Input Translator/Serializer
User Guide 5579 Campbell (MAXREFDES4#) Nexys 3 Quick Start Guide
User Guide 5578 Santa Fe (MAXREFDES5#) Nexys 3 Quick Start Guide
Sub-System Board 5563 Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
Sub-System Board 5562 Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
Sub-System Board 5561 Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)

Quality and Environmental Data

Product Reliability Reports: MAX14850.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
 

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Type ID PDF Title
Sub-System Board 5561 Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
Sub-System Board 5562 Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
Sub-System Board 5563 Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
User Guide 5578 Santa Fe (MAXREFDES5#) Nexys 3 Quick Start Guide
User Guide 5579 Campbell (MAXREFDES4#) Nexys 3 Quick Start Guide
Sub-System Board 5611 Corona (MAXREFDES12#): Isolated Industrial Octal Digital Input Translator/Serializer
User Guide 5613 Corona (MAXREFDES12#) Nexys 3 Quick Start Guide
User Guide 5614 Corona (MAXREFDES12#) ZedBoard Quick Start Guide
User Guide 5630 Fresno (MAXREFDES11#) ZedBoard Quick Start Guide
User Guide 5639 Santa Fe (MAXREFDES5#) ZedBoard Quick Start Guide
User Guide 5651 Campbell (MAXREFDES4#) ZedBoard Quick Start Guide
Sub-System Board 5721 Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
Sub-System Board 5742 Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
User Guide 5743 Carmel (MAXREFDES18#) LX9 Quick Start Guide
User Guide 5744 Carmel (MAXREFDES18#) ZedBoard Quick Start Guide
User Guide 5745 Fremont (MAXREFDES6#) Nexys 3 Quick Start Guide
User Guide 5746 Fremont (MAXREFDES6#) ZedBoard Quick Start Guide
Reference Schematic 5839 Alameda (MAXREFDES24#): 4-Channel Analog Output
User Guide 5846 Alameda (MAXREFDES24#) LX9 Quick Start Guide
User Guide 5847 Alameda (MAXREFDES24#) ZedBoard Quick Start Guide
User Guide 5866 MAXREFDES71# ZedBoard Quick Start Guide
User Guide 5885 MAXREFDES32# ZedBoard Quick Start Guide