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MAX14850

MAX14850

Six-Channel Digital Isolator

Industry's First Monolithic 600VRMS Digital Isolator

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Overview

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 SOIC (10mm x 4mm) package (for which an evaluation kit is available) and 16-pin QSOP (3.9mm x 4.94mm) package. The packages are specified over the -40°C to +125°C temperature range.

For improved performance, refer to the MAX14851. The MAX14851 has the same functionality and pin configurations, and can be used as a footprint and functional replacement for the MAX14850.

MAX14850: Functional Diagram MAX14850: Functional Diagram 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

Parametric Specs

Part NumberChannelsUni-directional InputsUni-directional InputsBi-directional ChannelsUni-directional Data Rate
(Mbps)		Bi-directional Data Rate
(Mbps)		Insulation RatingUni-directional Propagation
(ns)		Bi-directional Propagation
(ns)		VSUPPLY
(V)		VSUPPLY
(V)		Oper. Temp.
(°C)		Package/PinsBudgetary
Price
Side ASide BmaxmaxmaxmaxminmaxSee Notes
MAX14850 6222502600VRMS3010035.5-40 to +125
QSOP/16
SOIC (N)/16
$1.68 @1k
See All Digital Isolators (74)
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.

Design Resources


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

Quality and Environmental Data

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

Quality And Environmental

Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Reference Designs

Type ID Title
System Board6330MAXREFDES150#: Pocket IO PLC Development Platform
System Board6160MAXREFDES46#: 4-Channel Analog Input/Output
System Board5985MAXREFDES75#: 24-Bit Weigh Scale with a 16-Bit DAC, 0 to 10V Output
System Board5984MAXREFDES62#: RS-485 Communications Micro PLC Card
System Board5983MAXREFDES64#: 8-Channel, Digital-Input Micro PLC Card
System Board5976MAXREFDES63#: 8-Channel Digital Output Micro PLC Card
System Board5952MAXREFDES60#: 16-Bit Analog Output Micro PLC
System Board5944MAXREFDES74#: 18-Bit Precision Data Acquisition System
System Board5943MAXREFDES61#: 16-Bit Four-Channel Analog Input Micro PLC Card
System Board5896MAXREFDES39#: Power Amplifier Biasing through MAX11300 PIXI IC
System Board5883MAXREFDES32#: 2-Channel Analog Input/Analog Output with Flyback DC-DC
System Board5865MAXREFDES71#: 2-Channel Analog Input/Analog Output with Transformer Driven Power
System Board5839Alameda (MAXREFDES24#): 4-Channel Analog Output
System Board5742Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
System Board5721Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
System Board5611Corona (MAXREFDES12#): Isolated Industrial Octal Digital Input Translator/Serializer
System Board5563Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
System Board5562Campbell (MAXREFDES4#): 16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
System Board5561Santa Fe (MAXREFDES5#): 16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
Evaluation Board8390MAXSANTAFEEVSYS Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End
Evaluation Board8002MAX14850EVKIT Evaluation Kit for the MAX14850
Evaluation Board7753MAX14850PMB1 MAX14850PMB1 Peripheral Module
Evaluation Board7732MAXPMBAE Maxim Analog Essentials Collection of Peripheral Modules