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. 169-8112
Mfr. Part No.NJM2761V
HK$6.756
Each (On a Reel of 2000)
units
Audio Volume Control - - - - Surface Mount - - - SSOP 14 - - -
RS Stock No. 686-7408
Mfr. Part No.STA540
HK$20.66
Each
units
Audio Power Amplifier 2 Channel Stereo, 4 Channel Stereo Speaker 34 W, 38W Class A-B Through Hole 9 V, 12 V, 15 V, 18 V Single - MULTIWATT V 15 Single Ended Differential, Single Ended -
RS Stock No. 534-2955
Mfr. Part No.LM3886T/NOPB
HK$65.04
Each
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. 527-574
Mfr. Part No.OPA4134UA
HK$62.44
Each
units
Operational Amplifier - - - - Surface Mount - Dual 4 SOIC 14 - - 8MHz
RS Stock No. 812-4224
Mfr. Part No.TPA3116D2DAD
HK$30.01
Each
units
Audio 1 Channel Mono, 2 Channel Stereo Audio Equipment 50W Class D Surface Mount 4.5 → 26 V Single 2 HTSSOP 32 Differential, Single Ended Differential -
RS Stock No. 162-7861
Mfr. Part No.TPA3116D2DAD
HK$24.444
Each (In a Tube of 46)
units
Audio 1 Channel Mono, 2 Channel Stereo Audio Equipment 50W Class D Surface Mount 4.5 → 26 V Single 2 HTSSOP 32 Differential, Single Ended Differential -
RS Stock No. 168-6412
Mfr. Part No.STA540
HK$19.745
Each (In a Tube of 25)
units
Audio Power Amplifier 2 Channel Stereo, 4 Channel Stereo Speaker 34 W, 38W Class A-B Through Hole 9 V, 12 V, 15 V, 18 V Single - MULTIWATT V 15 Single Ended Differential, Single Ended -
RS Stock No. 168-8930
Mfr. Part No.TDA7391
HK$30.46
Each (In a Tube of 25)
units
Bridge Amplifier CMOS, Rail to Rail, Swing Automotive 26W Class A-B Through Hole 8 → 18 V Single 1 MULTIWATT V 11 Differential, Single Ended Differential 75kHz
RS Stock No. 100-5937
Mfr. Part No.LM3886T/NOPB
HK$58.674
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. 100-3801
Mfr. Part No.OPA2134UA
HK$43.397
Each (In a Tube of 75)
units
Operational Amplifier - Audio Equipment - - Surface Mount - Dual 2 SOIC 8 Differential Differential 8MHz
RS Stock No. 660-6244
Mfr. Part No.TPA152D
HK$21.472
Each (In a Pack of 5)
units
Audio 2 Channel Stereo Headphone 0.07W Class A-B Surface Mount 5 V Single - SOIC 8 Single Ended Single Ended -
RS Stock No. 285-8233
Mfr. Part No.OPA2134UA
HK$51.03
Each
units
Operational Amplifier - Audio Equipment - - Surface Mount - Dual 2 SOIC 8 Differential Differential 8MHz
RS Stock No. 100-5936
Mfr. Part No.LM386N-4/NOPB
HK$10.689
Each (In a Tube of 40)
units
Audio Power Amplifier 1 Channel Mono Speaker 1W Class A-B Through Hole 9 V, 12 V, 15 V Single - MDIP 8 Single Ended Single Ended -
RS Stock No. 820-9413
Mfr. Part No.SSM2518CPZ
HK$49.58
Each (In a Pack of 2)
units
Audio Power Amplifier 2 Channel Stereo - 1.4 W, 2W Class D Surface Mount 1.62 → 3.6 V Single 2 LFCSP 20 Single Ended Differential -
RS Stock No. 880-5484
Mfr. Part No.TDA7391
HK$35.942
Each (In a Pack of 5)
units
Bridge Amplifier CMOS, Rail to Rail, Swing Automotive 26W Class A-B Through Hole 8 → 18 V Single 1 MULTIWATT V 11 Differential, Single Ended Differential 75kHz
RS Stock No. 713-9228
Mfr. Part No.NJM2761V-TE1
HK$7.714
Each (In a Pack of 5)
units
Audio Volume Control - Speaker - - Surface Mount - - - SSOP 14 - - -
RS Stock No. 535-042
Mfr. Part No.NJM2761V
HK$8.116
Each (In a Pack of 5)
units
Audio Volume Control - - - - Surface Mount - - - SSOP 14 - - -
RS Stock No. 165-8390
Mfr. Part No.PAM8302AASCR
HK$1.796
Each (On a Reel of 2500)
units
Audio 1 Channel Mono Speaker 1.3 W, 2W Class D Surface Mount 2 → 5.5 V Single 1 MSOP 8 Differential Differential -
RS Stock No. 121-8429
Mfr. Part No.OPA4134UA
HK$52.92
Each (In a Tube of 50)
units
Operational Amplifier - - - - Surface Mount - Dual 4 SOIC 14 - - 8MHz
RS Stock No. 168-6413
Mfr. Part No.TDA7496
HK$17.43
Each (In a Tube of 25)
units
Audio 2 Channel Stereo Speaker 5W Class A-B Through Hole 12 V, 15 V, 18 V, 24 V, 28 V Single - MULTIWATT V 15 Single Ended Single Ended -