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. 535-8736
Mfr. Part No.LM1875T/NOPB
TWD122.40
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. 102-5686
Mfr. Part No.LM1875T/NOPB
TWD103.80
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. 923-3631
Mfr. Part No.TPA3123D2PWP
TWD191.00
Each (In a Tube of 60)
units
Audio 2 Channel Stereo Speaker 10 W, 20W Class D Surface Mount 12 V, 15 V, 18 V, 24 V, 28 V Single - HTSSOP 24 Single Ended Differential -
RS Stock No. 162-4743
Mfr. Part No.LM4766T/NOPB
TWD200.10
Each (In a Tube of 20)
units
Audio Power Amplifier 2 Channel Stereo Speaker 40W Class A-B Through Hole 18 V Dual, Single - TO-220 15 Differential Single Ended 8MHz
RS Stock No. 660-6272
Mfr. Part No.TPA3123D2PWP
TWD245.00
Each
units
Audio 2 Channel Stereo Speaker 10 W, 20W Class D Surface Mount 12 V, 15 V, 18 V, 24 V, 28 V Single - HTSSOP 24 Single Ended Differential -
RS Stock No. 534-3318
Mfr. Part No.LM4766T/NOPB
TWD221.00
Each
units
Audio Power Amplifier 2 Channel Stereo Speaker 40W Class A-B Through Hole 18 V Dual, Single - TO-220 15 Differential Single Ended 8MHz
RS Stock No. 100-3801
Mfr. Part No.OPA2134UA
TWD163.80
Each (In a Tube of 75)
units
Operational Amplifier - Audio Equipment - - Surface Mount - Dual 2 SOIC 8 Differential Differential 8MHz
RS Stock No. 660-6235
Mfr. Part No.TPA1517NE
TWD141.40
Each (In a Pack of 5)
units
Audio 2 Channel Stereo Speaker 6W Class A-B Through Hole 12 V, 15 V Single - PDIP 20 Single Ended Single Ended -
RS Stock No. 162-7861
Mfr. Part No.TPA3116D2DAD
TWD92.30
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. 812-4224
Mfr. Part No.TPA3116D2DAD
TWD108.00
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. 121-8511
Mfr. Part No.OPA2134PA
TWD146.20
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 285-8233
Mfr. Part No.OPA2134UA
TWD204.00
Each
units
Operational Amplifier - Audio Equipment - - Surface Mount - Dual 2 SOIC 8 Differential Differential 8MHz
RS Stock No. 145-5743
Mfr. Part No.TPA1517NE
TWD117.80
Each (In a Tube of 20)
units
Audio 2 Channel Stereo Speaker 6W Class A-B Through Hole 12 V, 15 V Single - PDIP 20 Single Ended Single Ended -
RS Stock No. 285-8069
Mfr. Part No.OPA2134PA
TWD172.00
Each
units
Operational Amplifier - Audio Equipment - - Through Hole - Dual 2 PDIP 8 Differential Differential 8MHz
RS Stock No. 535-9470
Mfr. Part No.LM384N/NOPB
TWD74.60
Each (In a Pack of 5)
units
Audio Power Amplifier 1 Channel Mono Speaker 5.5W Class A-B Through Hole 15 V, 18 V, 24 V Single - MDIP 14 Single Ended Single Ended -
RS Stock No. 168-7166
Mfr. Part No.TDA7266D
TWD131.30
Each (In a Tube of 31)
units
Bridge Amplifier - Audio Equipment 7W Class A-B Surface Mount 3.5 → 12 V Single 2 PowerSO 20 Single - -
RS Stock No. 100-5938
Mfr. Part No.LM3886TF/NOPB
TWD226.50
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
TWD143.00
Each
units
Audio 1 Channel Mono Audio Equipment - - Surface Mount - Dual 1 SOIC 8 Differential Differential 180MHz
RS Stock No. 534-2961
Mfr. Part No.LM3886TF/NOPB
TWD251.00
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. 102-5712
Mfr. Part No.LM384N/NOPB
TWD63.40
Each (In a Tube of 25)
units
Audio Power Amplifier 1 Channel Mono Speaker 5.5W Class A-B Through Hole 15 V, 18 V, 24 V Single - MDIP 14 Single Ended Single Ended -