Audio Amplifier ICs

Audio amplifier ICs (integrated circuits) are devices used within electronic circuits for audio applications. Audio amplifiers increase, control and amplify the strength or amplitude of the signals. They are used to increase the sound and quality of the audio signal. Amplifier characteristics and performance are classed using letter symbols, such as Class-A, Class-B, Class-C, Class-D or Class-AB.

IC audio amplifiers are useful because they can vastly decrease the size of amplification devices, making it possible to create sophisticated amplification within a small package. Unlike power amplifiers, they are not standalone devices. Audio amplifiers come in standard semiconductor packages, such as HTSSOP, MSOP, PDIP, SOIC and TQFN. These packages can be through-hole or surface mounted.

Where are Audio Amplifier ICs used?

Audio amplifier ICs are used in a range of commercial applications. They are found in car stereos, headphones, televisions, keyboards, and toys. They are also used in electronic circuits for line drivers, ultrasonic drivers, power converters and radio amplifiers.

Types of Audio Amplifier:

  • Audio Amplifier
  • Audio Power Amplifier
  • Audio Line Driver
  • Audio System
  • Bridge Amplifier
  • Compandor
  • Microphone Pre-Amplifier
  • Headphone Amplifier
  • Speaker Amplifier
  • Operational Amplifier

Things to consider when choosing an audio amplifier:

  • Input Signal type - This is usually single-ended and/or differential inputs.
  • Output Signal type - This is usually single-ended and/or differential outputs.
  • Maximum Power - Given in watts, depending on the size and scope of amplification you need.
  • Output Type - Mono outputs have a single channel, while stereo outputs have more than one.

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Description Price Amplifier Type Output Type Application Maximum Power Amplifier Class Mounting Type Typical Single Supply Voltage Power Supply Type Number of Channels per Chip Package Type Pin Count Input Signal Type Output Signal Type Typical Gain Bandwidth Product
RS Stock No. 660-6288
Mfr. Part No.TPA6111A2DGN
PHP79.748
Each (In a Pack of 5)
units
Audio 2 Channel Stereo Headphone 0.09 W, 0.15W Class A-B Surface Mount 3 V, 5 V Single - MSOP 8 Single Ended Single Ended -
RS Stock No. 190-5741
Mfr. Part No.MAX98300ETA+T
PHP75.406
Each (In a Pack of 10)
units
Audio - - 2.6 (Typ.)W Class D Surface Mount 2.6 → 5.5 V Single 1 TDFN-EP 8 Differential, Single Ended Differential 22kHz
RS Stock No. 191-4284
Mfr. Part No.MAX4465EXK+T
PHP18.462
Each (On a Reel of 2500)
units
Audio Rail to Rail - - - Surface Mount +2.4 → +5.5 V Single - SC-70 5 Single Ended - 200kHz
RS Stock No. 534-3419
Mfr. Part No.LM4890M/NOPB
PHP80.78
Each
units
Audio Power Amplifier 1 Channel Mono Speaker 1W Class A-B Surface Mount 3 V, 5 V Single - SOIC 8 Single Ended Differential -
RS Stock No. 535-9464
Mfr. Part No.LM380N-8/NOPB
PHP97.756
Each (In a Pack of 5)
units
Audio Power Amplifier 1 Channel Mono Speaker 2.5W Class A-B Through Hole 12 V, 15 V, 18 V Single - MDIP 8 Differential Single Ended -
RS Stock No. 145-0105
Mfr. Part No.TPA6110A2DGN
PHP69.972
Each (In a Tube of 80)
units
Audio Power Amplifier 2 Channel Stereo Headphone 0.15W Class A-B Surface Mount 3 V, 5 V Single - MSOP 8 Single Ended Single Ended -
RS Stock No. 164-8201
Mfr. Part No.DG2592DN-T1-GE4
BrandVishay
PHP45.276
Each (In a Pack of 10)
units
Audio Jack Detector - Microphone - - Surface Mount - - 1 MiniQFN 10 - - -
RS Stock No. 534-3368
Mfr. Part No.LM4860M/NOPB
PHP97.76
Each
units
Audio Power Amplifier 1 Channel Mono Speaker 1.1W Class A-B Surface Mount 3 V, 5 V Single - SOIC 16 Single Ended Differential -
RS Stock No. 660-6250
Mfr. Part No.TPA2005D1DGN
PHP80.262
Each (In a Pack of 5)
units
Audio 1 Channel Mono Speaker 1.45W Class D Surface Mount 3 V, 5 V Single - MSOP 8 Differential Differential -
RS Stock No. 165-9381
Mfr. Part No.MAX9736AETJ+
PHP226.894
Each (In a Tube of 43)
units
Audio 1 Channel Mono Speaker 13.5 W, 27W Class D Surface Mount - - - TQFN 32 - Single Ended 22 Hz → 22kHz
New
RS Stock No. 208-8610
Mfr. Part No.LM4950TSX/NOPB
PHP163.096
Each (In a Pack of 5)
units
- 1 Channel Mono, 2 Channel Stereo - 7.5W Class A-B Surface Mount 9.6 →16 V - 1 SOIC 9 - - 3.5MHz
RS Stock No. 920-3362
Mfr. Part No.OPA1632DGN
PHP169.785
Each (In a Tube of 80)
units
Operational Amplifier - - - - Surface Mount - Dual 1 MSOP 8 - - -
RS Stock No. 102-5711
Mfr. Part No.LM380N-8/NOPB
PHP83.349
Each (In a Tube of 40)
units
Audio Power Amplifier 1 Channel Mono Speaker 2.5W Class A-B Through Hole 12 V, 15 V, 18 V Single - MDIP 8 Differential Single Ended -
RS Stock No. 923-3634
Mfr. Part No.TPA6120A2DWP
PHP171.68
Each (In a Tube of 25)
units
Audio 2 Channel Stereo Headphone - Class A-B Surface Mount 12 V, 15 V, 18 V, 24 V, 28 V Dual, Single - SOIC 20 Differential Single Ended -