High Efficiency, Ground-Referenced Class-G Headphone Amplifier

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Product Details

The SSM2932 is a stereo headphone amplifier capable of delivering 50 mW of continuous output power per channel into 16 Ω single-ended loads at the 1% THD + N threshold. The stereo headphone drivers are high efficiency, true ground-referenced Class-G technology.

The SSM2932 incorporates a gain control pin that selects a gain of 0 dB or 6 dB. The ground-referenced output scheme eliminates the need for large dc blocking capacitors, reducing system cost and board area. The Class-G amplifier is fine-tuned to maximize battery life, a critical task in portable applications. The device maximizes battery life by modulating the amplifier power supply rail to match the output demand without consuming excessive supply current, thus reducing power dissipation during typical audio playback.

The SSM2932 is specified over the industrial temperature range of −40°C to +85°C. It has output short-circuit protection as well as ESD protection to 8 kV (human body model). The SSM2932 is available in a 16-ball, 1.64 mm × 1.64 mm wafer level chip scale package (WLCSP).


  • Cellular phones
  • Smartphones / multimedia phones
  • Digital cameras
  • Portable media players
  • Phone accessories
  • PDAs

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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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.

SSM2932 Material Declaration
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The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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