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. 891-2765
Mfr. Part No.TB2931HQ(O)
BrandToshiba
HK$53.14
Each
units
Audio Power Amplifier - Automotive 49W - Through Hole - - 4 HZIP 25 - - -
RS Stock No. 121-8511
Mfr. Part No.OPA2134PA
HK$35.875
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 285-8069
Mfr. Part No.OPA2134PA
HK$43.15
Each
units
Operational Amplifier - Audio Equipment - - Through Hole - Dual 2 PDIP 8 Differential Differential 8MHz
RS Stock No. 124-4528
Mfr. Part No.LM386N-3/NOPB
HK$9.292
Each (In a Pack of 10)
units
Audio Power Amplifier 1 Channel Mono - 0.7W Class A-B, Class D Through Hole 4 → 12 V Single 1 PDIP 8 Differential Single 300kHz
RS Stock No. 100-5935
Mfr. Part No.LM386N-3/NOPB
HK$8.765
Each (In a Tube of 40)
units
Audio Power Amplifier 1 Channel Mono Speaker 0.7W Class A-B Through Hole 5 V, 9 V Single - MDIP 8 Single Ended Single Ended -
RS Stock No. 218-585
Mfr. Part No.TDA7297
HK$36.22
Each
units
Bridge Amplifier 2 Channel Stereo Speaker 15W Class A-B Through Hole 9 V, 12 V, 15 V Single - MULTIWATT V 15 Single Ended Differential -
RS Stock No. 285-8053
Mfr. Part No.OPA134PA
HK$26.09
Each
units
Operational Amplifier - - - - Through Hole - Dual 1 PDIP 8 - - 8MHz
RS Stock No. 660-6285
Mfr. Part No.TPA6120A2DWP
HK$32.81
Each
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 -
RS Stock No. 923-3634
Mfr. Part No.TPA6120A2DWP
HK$27.233
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 -
RS Stock No. 919-6462
Mfr. Part No.TDA7297
HK$30.138
Each (In a Tube of 25)
units
Bridge Amplifier 2 Channel Stereo Speaker 15W Class A-B, Class D Through Hole 9 V, 12 V, 15 V Single - MULTIWATT V 15 Single Ended Differential -
RS Stock No. 121-8510
Mfr. Part No.OPA134PA
HK$22.124
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 100-5943
Mfr. Part No.LM4880M/NOPB
HK$14.018
Each (In a Tube of 95)
units
Audio Power Amplifier 2 Channel Stereo Speaker 0.25W Class A-B Surface Mount 3 V, 5 V Single - SOIC 8 Single Ended Single Ended -
RS Stock No. 535-8736
Mfr. Part No.LM1875T/NOPB
HK$28.502
Each (In a Pack of 5)
units
Audio Power Amplifier 1 Channel Mono Speaker 20W Class A-B Through Hole 18 V, 24 V, 28 V Dual, Single - TO-220 5 Single Ended Single Ended 5.5MHz
RS Stock No. 534-3403
Mfr. Part No.LM4880M/NOPB
HK$16.48
Each
units
Audio Power Amplifier 2 Channel Stereo Speaker 0.25W Class A-B Surface Mount 3 V, 5 V Single - SOIC 8 Single Ended Single Ended -
RS Stock No. 121-9381
Mfr. Part No.TPA3125D2N
HK$31.467
Each (In a Tube of 20)
units
Audio 1 Channel Mono, 2 Channel Stereo Speaker, Television 10W Class D Through Hole 10 → 26 V Single 2 PDIP 20 Single Ended Differential, Single Ended -
RS Stock No. 812-4230
Mfr. Part No.TPA3125D2N
HK$34.99
Each (In a Pack of 5)
units
Audio 1 Channel Mono, 2 Channel Stereo Speaker, Television 10W Class D Through Hole 10 → 26 V Single 2 PDIP 20 Single Ended Differential, Single Ended -
RS Stock No. 102-5686
Mfr. Part No.LM1875T/NOPB
HK$23.711
Each (In a Tube of 45)
units
Audio Power Amplifier 1 Channel Mono Speaker 20W Class A-B Through Hole 18 V, 24 V, 28 V Dual, Single - TO-220 5 Single Ended Single Ended 5.5MHz
RS Stock No. 100-5938
Mfr. Part No.LM3886TF/NOPB
HK$56.49
Each (In a Tube of 20)
units
Audio Power Amplifier 1 Channel Mono Speaker 38 W, 68W Class A-B Through Hole 18 V Dual, Single - MLPP 11 Differential Single Ended 8MHz
RS Stock No. 619-9875
Mfr. Part No.OPA1632D
HK$32.34
Each
units
Audio 1 Channel Mono Audio Equipment - - Surface Mount - Dual 1 SOIC 8 Differential Differential 180MHz
RS Stock No. 102-5581
Mfr. Part No.OPA1632D
HK$27.501
Each (In a Tube of 75)
units
Audio 1 Channel Mono Audio Equipment - - Surface Mount - Dual 1 SOIC 8 Differential Differential 180MHz