1. Products
  2. Audio Products
  3. Audio Amplifiers
  4. Speaker Amplifiers
  5. Class-D Audio Amplifiers
  6. MAX9742


Features and Benefits

  • 2 x 16W Output Power (RL = 4Ω, THD+N = 10%)
  • High Efficiency: Up to 92% with RL = 8Ω
  • Mute and Shutdown Modes
  • Differential Inputs Suppress Common-Mode Noise
  • Adjustable Gain
  • Integrated Click-and-Pop Suppression
  • Low 0.06% THD+N at 3.5W, RL = 8Ω
  • Output Short-Circuit and Thermal Protection
  • Available in Space-Saving, 6mm x 6mm, 36-Pin TQFN Package

Product Details

The MAX9742 stereo Class D audio power amplifier delivers up to 2 x 16W into 4Ω loads. The MAX9742 features high-power efficiency (92% with 8Ω loads), eliminating the need for a bulky heatsink and conserving power. The MAX9742 operates from a 20V to 40V single supply or a ±10V to ±20V dual supply. Features include fully differential inputs, comprehensive click-and-pop suppression, low-power shutdown mode, and an externally adjustable gain. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition.

The MAX9742 is available in a thermally efficient 36-pin TQFN (6mm x 6mm x 0.8mm) package and is specified over the -40°C to +85°C extended temperature range.


  • Audio Docking Stations
  • CRT TVs
  • Flat-Panel Display TVs
  • Multimedia Monitors

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX9742ETX+ Material Declaration Reliability Data 36-LFCSP-6X6X0.75
MAX9742ETX+T Material Declaration Reliability Data 36-LFCSP-6X6X0.75
Wafer Fabrication Data

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.