Speaker Amplifiers

Class D

Maxim's Class D amplifiers offer very high wideband jitter tolerance, low THD+N, and low output ...

Boosted/DG

Maxim's Class DG speaker amps offer highly efficient, high-power audio portable solutions. Class...

Class AB

Class AB speaker amplifiers have higher efficiency than Class A, but less distortion than Class ...

Dynamic Speaker Management (DSM)

Dynamic Speaker Management (DSM™) smart amplifiers are an audio solution that combines high-perf...

Dynamic Speaker Management (DSM)

Dynamic Speaker Management (DSM™) smart amplifiers are an audio solution that combines high-perf...

How to Drive Micro Speakers to Their Maximum Power Rating

Featured Technical Documents

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Customer Testimonials

Featured Blogs

October 24, 2019

Learn how Smart Audio Amplifiers enhance Micro Speakers and get the maximum power rating to achieve louder sound and more bass.

How to Get Louder, Richer Sound from Micro Speakers

July 25, 2019

Learn how new boosted, digital Class D smart amplifier, MAX98390, enables you to deliver louder, richer sound from micro speakers.

Want Your Oven to Play Your Favorite U2 Song?

August 01, 2017

Experts share tips for building speaker systems, whether they’re for standalone use or integrated into, say, an appliance or mobile device.

MAX98307 3.3W Mono Class DG Multilevel Audio Amplifier

The MAX98307/MAX98308 fully differential mono Class DG multilevel power amplifiers with integrat...

High Efficiency Combined with High Output Power
- Class DG Multilevel Modulation Ensures Maximum Efficiency Over Wide Output Power Range
Improves Battery Life
- Low 1.85mA Quiescent Current
High Output Power at 1% THD+N
- 1.54W at V_PVDD = 3.6V, 8Ω + 68µH Load
- 2.85W at V_PVDD = 5V, 8Ω + 68µH Load
High Output Power at 10% THD+N
- 1.77W at V_PVDD = 3.6V, 8Ω + 68µH Load
- 3.3W at V_PVDD = 5V, 8Ω + 68µH Load
84% Efficiency (V_PVDD = 3.6V, at 500mW Output)
Active Emissions Limiting and Class DG Multilevel Output Modulation Eliminates EMI Output Filtering Requirement
Integrated Charge Pump and High Efficiency Results in Small Solution Size
Excellent RF Immunity
Click-and-Pop Suppression
Thermal and Overcurrent Protection
Low-Current Shutdown Mode

MAX98356 PDM Input Class D Audio Power Amplifier

The MAX98356 is a digital pulse-density modulated (PDM) input Class D power amplifier that provi...

Single-Supply Operation (2.5V to 5.5V)
3.2W Output Power into 4Ω at 5V
1.8mA Quiescent Current
92% Efficiency (R_L = 8Ω, P_OUT = 900mW, V_DD = 3.7V)
29µV_RMS Output Noise (A_V = 6dB)
Low 0.013% THD+N at 1kHz
Exceptionally High Jitter Tolerance
Supported PDM_CLK Rates of 1.84MHz–4.32MHz and 5.28MHz–8.64MHz
Supports Left, Right, or Left/2 + Right/2 Outputs
Sophisticated Edge Rate Control Enables Filterless Class D Outputs
77dB PSRR at 217Hz
Low RF Susceptibility Rejects TDMA Noise from GSM Radios
Extensive Click-and-Pop Reduction Circuitry
Robust Short-Circuit and Thermal Protection
Available in Space-Saving Package: 1.345mm x 1.435mm WLP (0.4mm Pitch)

MAX98500 Boosted 2.2W Class D Amplifier with Automatic Level Control

The MAX98500 is a high-efficiency Class D audio amplifier that features an integrated boost conv...

Boosted Class D Output
Integrated Automatic Level Control
Output Power
- 2.2W into 8Ω, 10% THD+N
- 1.7W into 8Ω, 1% THD+N
Wide 2.5V to 5.5V Supply Voltage Range
Undervoltage Lockout Protection
High Total Efficiency of 87%
High Step-Up Switching Frequency (2MHz)
Active Emission Limiting for Low EMI

MAX9744 20W Stereo Class D Speaker Amplifier with Volume Control

The MAX9744 20W stereo Class D audio power amplifier provides Class AB amplifier performance wit...

Wide 4.5V to 14V Power-Supply Voltage Range
Filterless Spread-Spectrum Modulation Lowers Radiated RF Emissions from Speaker Cables
20W Stereo Output (4Ω, V_DD = 12V, THD+N = 10%)
Integrated Volume Control (I²C or Analog)
Low 0.04% THD+N
High 75dB PSRR
High 93% Efficiency
Integrated Click-and-Pop Suppression
Low-Power Shutdown Mode
Short-Circuit and Thermal-Overload Protection
Available in a 44-Pin Thin QFN-EP (7mm x 7mm x 0.8mm)

MAX98307 3.3W Mono Class DG Multilevel Audio Amplifier

The MAX98307/MAX98308 fully differential mono Class DG multilevel power amplifiers with integrat...

High Efficiency Combined with High Output Power
- Class DG Multilevel Modulation Ensures Maximum Efficiency Over Wide Output Power Range
Improves Battery Life
- Low 1.85mA Quiescent Current
High Output Power at 1% THD+N
- 1.54W at V_PVDD = 3.6V, 8Ω + 68µH Load
- 2.85W at V_PVDD = 5V, 8Ω + 68µH Load
High Output Power at 10% THD+N
- 1.77W at V_PVDD = 3.6V, 8Ω + 68µH Load
- 3.3W at V_PVDD = 5V, 8Ω + 68µH Load
84% Efficiency (V_PVDD = 3.6V, at 500mW Output)
Active Emissions Limiting and Class DG Multilevel Output Modulation Eliminates EMI Output Filtering Requirement
Integrated Charge Pump and High Efficiency Results in Small Solution Size
Excellent RF Immunity
Click-and-Pop Suppression
Thermal and Overcurrent Protection
Low-Current Shutdown Mode

MAX98356 PDM Input Class D Audio Power Amplifier

The MAX98356 is a digital pulse-density modulated (PDM) input Class D power amplifier that provi...

Single-Supply Operation (2.5V to 5.5V)
3.2W Output Power into 4Ω at 5V
1.8mA Quiescent Current
92% Efficiency (R_L = 8Ω, P_OUT = 900mW, V_DD = 3.7V)
29µV_RMS Output Noise (A_V = 6dB)
Low 0.013% THD+N at 1kHz
Exceptionally High Jitter Tolerance
Supported PDM_CLK Rates of 1.84MHz–4.32MHz and 5.28MHz–8.64MHz
Supports Left, Right, or Left/2 + Right/2 Outputs
Sophisticated Edge Rate Control Enables Filterless Class D Outputs
77dB PSRR at 217Hz
Low RF Susceptibility Rejects TDMA Noise from GSM Radios
Extensive Click-and-Pop Reduction Circuitry
Robust Short-Circuit and Thermal Protection
Available in Space-Saving Package: 1.345mm x 1.435mm WLP (0.4mm Pitch)

MAX98500 Boosted 2.2W Class D Amplifier with Automatic Level Control

The MAX98500 is a high-efficiency Class D audio amplifier that features an integrated boost conv...

Boosted Class D Output
Integrated Automatic Level Control
Output Power
- 2.2W into 8Ω, 10% THD+N
- 1.7W into 8Ω, 1% THD+N
Wide 2.5V to 5.5V Supply Voltage Range
Undervoltage Lockout Protection
High Total Efficiency of 87%
High Step-Up Switching Frequency (2MHz)
Active Emission Limiting for Low EMI

MAX9744 20W Stereo Class D Speaker Amplifier with Volume Control

The MAX9744 20W stereo Class D audio power amplifier provides Class AB amplifier performance wit...

Wide 4.5V to 14V Power-Supply Voltage Range
Filterless Spread-Spectrum Modulation Lowers Radiated RF Emissions from Speaker Cables
20W Stereo Output (4Ω, V_DD = 12V, THD+N = 10%)
Integrated Volume Control (I²C or Analog)
Low 0.04% THD+N
High 75dB PSRR
High 93% Efficiency
Integrated Click-and-Pop Suppression
Low-Power Shutdown Mode
Short-Circuit and Thermal-Overload Protection
Available in a 44-Pin Thin QFN-EP (7mm x 7mm x 0.8mm)