6-Channel, Digital Ground-Level Translator

High-Channel-Count, Ground-Level Translator in Tiny (4mm × 4mm) TQFN Minimizes Footprint and Reduces BOM Components

Please check latest availability status for a specific part variant.


The MAX14842 translates digital signals between two domains that have different ground references of up to 72V. The device features six communication channels, two bidirectional and four unidirectional. Two of the four unidirectional channels go in each direction. The device is powered by two supply voltages that independently define the logic levels of each ground domain.

The MAX14842 supports guaranteed data rates up to 30Mbps on the four unidirectional channels and up to 2Mbps on the two bidirectional channels. The bidirectional channels have open-drain outputs, making them suitable for I²C signals. I²C clock stretching and hot swapping is supported on the bidirectional channels.

Undervoltage lockout ensures that the output pins have a defined behavior during power-up, power-down, and during supply transients. For proper operation, ensure that 0V ≤ (VGNDB - VGNDA) ≤ 72V. Note that GNDB must be greater than or equal to GNDA.

The MAX14842 is available in a 16-pin TQFN package and is specified over the -40°C to +125°C automotive temperature range.

Key Features

  • Supports Ground Differences Up to +72V
  • Four Unidirectional Channels: Two In/Two Out
  • Two Bidirectional Channels
  • I²C Compatible
  • Supports I²C Clock Stretching
  • 30Mbps Unidirectional Data Rates
  • 2Mbps Bidirectional Data Rates
  • +3.3V to +5V Level Translation
  • Undervoltage Lockout
  • 4mm x 4mm 16-Pin TQFN Package
  • -40°C to +125°C Automotive Temperature Range


  • Battery Management
  • I2C, SMBus™, SPI™, and MICROWIRE™ Signals
  • Medical Systems
  • Power-Over-Ethernet
  • Telecommunication Systems
Part NumberChannelsUni-directional InputsBi-directional ChannelsUni-directional Data Rate
Bi-directional Data Rate
Insulation RatingUni-directional Propagation
Bi-directional Propagation
Oper. Temp.
Side AmaxmaxmaxmaxminmaxSee Notes
MAX14842 64250272VDC3010035.5-40 to +125
$2.53 @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.

Quality and Environmental Data

Product Reliability Reports: MAX14842.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX14842ATE+
  • MAX14842ATE+T
  • 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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