High-Current Differential Line Driver for Powerline Communications

Industry's Smallest, Lowest Power Line Driver for ARIB, CENELEC, and FCC Powerline Standards

Please check latest availability status for a specific part variant.


The MAX44211 is a low-distortion line driver customized for powerline communication (PLC) applications where high output current is needed to drive the isolation and coupling transformer under varying load conditions. The MAX44211 can be switched to implement all world standards, trading off improved linearity for increased quiescent current. The MAX44211 delivers a high 1.5A linear output current and provides peak-to-peak differential voltage swing of up to 36V. The MAX44211 features very low intermodulation and harmonic distortion ensuring they meet worldwide PLC standards.

The MAX44211 features advanced diagnostics for temperature and output current monitoring. There are high temperature warning and over temperature shutdown functions. There is also a programmable current limit. The status of these diagnostics are indicated via two open-drain status outputs.

The MAX44211 is designed to interface to powerlines that have wide ranging and variable loads and drive signals within the 9kHz to 500kHz frequency band. This device operates from a single supply and is available in a 4mm x 4mm, 20-pin TQFN package.

The MAX44211 device is specified for operation from -40°C to +85°C.
MAX44211: Functional Diagram MAX44211: Functional Diagram Enlarge+

Key Features

  • Meets Stringent ARIB, FCC, and CENELEC Linearity Specifications for Out-of-Band Emissions
    • Output Drives Current Linearly Up to 1.5A Peak Into a Reactive Load for PLC Applications
  • Output Voltage Swings to Within 0.5V of AVDD or AGND (36VP-P Differential) for Widest Dynamic Range
  • Wide Power-Supply Range Addresses Multiple Standards:
    • +8V to +20V for Analog Supply
    • +2.7V to +5.5V for Digital Supply
  • Programmable Output Current Limit via External Resistor Provides Flexibility
  • Programmable Gain (6x, 12x, 15x, or 18x) via Gain Inputs Provides Multistandard Usage
  • Status Logic Outputs Provide Improved Diagnostics
    • Overtemperature Shutdown Active
    • High-Temperature Warning Active
    • Overcurrent Active
    • Normal Operation


  • Lighting
  • Powerline Communications
  • Smart Meters
  • Solar
Part NumberAmps.AV
ICC per Amp.
Unity Gain BW
Slew Rate
minmaxtyptyptypSee Notes
MAX44211 1
$3.25 @1k
See All Operational Amplifiers (174)
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.

MAX44211EVKIT: Evaluation Kit for MAX44211

Technical Documents

App Note 6445 How to Install MAX44211 Output Protection

Quality and Environmental Data

Product Reliability Reports: MAX44211.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
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.

Quality Management System >
Environmental Management System >


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