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. 660-6301
Mfr. Part No.TPA6211A1DGN
MYR4.09
Each (In a Pack of 5)
units
Audio 1 Channel Mono Speaker 1.7 W, 3.1W Class A-B Surface Mount 3 V, 5 V Single - MSOP 8 Differential Differential -
RS Stock No. 920-6541
Mfr. Part No.TDA7850
MYR33.937
Each (In a Tube of 17)
units
Bridge Amplifier 2 Channel Stereo Speaker 30W Class A-B Through Hole - Single - FLEXIWATT 25 Single Ended Differential -
RS Stock No. 665-8762
Mfr. Part No.PGA2311P
MYR44.18
Each
units
Audio Volume Control - - - - Through Hole - - - PDIP 16 - - -
RS Stock No. 110-7093
Mfr. Part No.TDA7266M
MYR9.85
Each (In a Pack of 5)
units
Bridge Amplifier Monolithic - 7W - Through Hole 11 V Single - MULTIWATT V 15 Single Ended Single Ended -
RS Stock No. 812-4230
Mfr. Part No.TPA3125D2N
MYR16.20
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. 168-7756
Mfr. Part No.TDA7269A
MYR11.424
Each (In a Tube of 25)
units
Audio Single Ended Speaker, Television 14W Class A-B Through Hole - Dual - MULTIWATT V 11 Single Single Ended -
RS Stock No. 922-2993
Mfr. Part No.PGA2311P
MYR38.01
Each (In a Tube of 25)
units
Audio Volume Control - - - Class D, Class G Through Hole - - - PDIP 16 - - -
RS Stock No. 285-8227
Mfr. Part No.OPA134UA
MYR13.83
Each
units
Operational Amplifier - - - - Surface Mount - Dual 1 SOIC 8 - - 8MHz
RS Stock No. 460-815
Mfr. Part No.LM4862M/NOPB
MYR6.61
Each (In a Pack of 5)
units
Audio Power Amplifier 1 Channel Mono Speaker 0.67W Class A-B Surface Mount 3 V, 5 V Single - SOIC 8 Single Ended Differential -
RS Stock No. 740-5929
Mfr. Part No.NJM386D
MYR3.778
Each (In a Pack of 5)
units
Audio Power Amplifier 1 Channel Mono Speaker - Class A-B Through Hole 5 V, 9 V Single - PDIP 8 Differential Single Ended -
RS Stock No. 761-5968
Mfr. Part No.LM4865M/NOPB
MYR10.506
Each (In a Pack of 5)
units
Audio - - 0.75W Class A-B Surface Mount 2.7 → 5.5 V Single 2 SOIC 8 Single Single Ended -
RS Stock No. 169-0514
Mfr. Part No.BH3544F-E2
BrandROHM
MYR2.154
Each (On a Reel of 2500)
units
Audio 2 Channel Stereo Headphone 0.6W Class A-B Surface Mount 3 V, 5 V Single - SOP 8 Single Ended Single Ended -
RS Stock No. 100-5933
Mfr. Part No.LM1876TF/NOPB
MYR27.059
Each (In a Tube of 20)
units
Audio Power Amplifier 2 Channel Stereo Speaker 20W Class A-B Through Hole 24 V, 28 V Dual, Single - TO-220 15 Single Ended Single Ended 7.5MHz
RS Stock No. 700-3551
Mfr. Part No.BH3544F-E2
BrandROHM
MYR4.66
Each
units
Audio 2 Channel Stereo Headphone 0.6W Class A-B Surface Mount 3 V, 5 V Single - SOP 8 Single Ended Single Ended -
RS Stock No. 790-2978
Mfr. Part No.PAM8406ER
MYR4.242
Each (In a Pack of 5)
units
Audio 2 Channel Stereo Speaker 1.8 W, 3.1W Class A-B, Class D Surface Mount 2.5 → 5.5 V Single 1 SOP 16 - Differential -
RS Stock No. 812-4224
Mfr. Part No.TPA3116D2DAD
MYR12.96
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. 145-6516
Mfr. Part No.LM4940TS/NOPB
MYR10.738
Each (In a Tube of 45)
units
Audio Power Amplifier 2 Channel Stereo Speaker 3.1W Class A-B Surface Mount 12 V, 15 V Single - TO-263 10 Single Ended Single Ended -
RS Stock No. 121-9922
Mfr. Part No.LV49821VH-TLM-H
MYR5.44
Each (On a Reel of 2000)
units
Audio 2 Channel Stereo Headphone 1.4W Class A-B Surface Mount 2.7 → 5.5 V Single 2 HSSOP 13 Single Differential -
RS Stock No. 168-5872
Mfr. Part No.TDA7266M
MYR8.41
Each (In a Tube of 25)
units
Bridge Amplifier Monolithic - 7W - Through Hole 11 V Single - MULTIWATT V 15 Single Ended Single Ended -
RS Stock No. 533-9678
Mfr. Part No.LM1876TF/NOPB
MYR29.90
Each
units
Audio Power Amplifier 2 Channel Stereo Speaker 20W Class A-B Through Hole 24 V, 28 V Dual, Single - TO-220 15 Single Ended Single Ended 7.5MHz