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. 799-3274
Mfr. Part No.MAX9722BEUE+
HK$12.853
Each (In a Pack of 4)
units
Audio 2 Channel Stereo - 0.07 W, 0.13W Class A-B Surface Mount 2.4 → 5.5 V Single 2 TSSOP 16 Differential Single Ended 22kHz
RS Stock No. 713-9708
Mfr. Part No.NJU7084R-TE1
HK$7.674
Each (In a Pack of 5)
units
Audio 1 Channel Mono Speaker 1W Class A-B Surface Mount 3 V Single - VSP 8 Differential Differential -
RS Stock No. 169-8201
Mfr. Part No.NJM2113E
HK$5.572
Each (In a Tube of 100)
units
Audio 1 Channel Mono Speaker 0.25W Class A-B Surface Mount 3 V, 5 V, 9 V, 12 V, 15 V Single - EMP 8 Differential Differential -
RS Stock No. 169-8200
Mfr. Part No.NJM2070M
HK$5.233
Each (In a Tube of 100)
units
Audio 1 Channel Mono Speaker 0.6W Class A-B Surface Mount 3 V, 5 V, 9 V, 12 V Single - DMP 8 Differential Single Ended -
RS Stock No. 201-8293
Mfr. Part No.AS3415-EQFM
Brandams
HK$40.637
Each (On a Reel of 500)
units
Noise Cancellation - Headphone - - Surface Mount - - - QFN 32 - - -
RS Stock No. 121-9383
Mfr. Part No.TPA3122D2N
HK$27.143
Each (In a Tube of 20)
units
Audio 1 Channel Mono, 2 Channel Stereo Television 10 W, 15W Class D Through Hole 10 → 30 V Single 2 PDIP 20 Single Ended Differential, Single Ended -
RS Stock No. 162-7295
Mfr. Part No.PGA2311UA
HK$60.179
Each (In a Tube of 40)
units
Audio Volume Control - - - - Surface Mount - - - SOIC 16 - - -
RS Stock No. 186-9449
Mfr. Part No.NE592D14G
HK$7.457
Each (In a Pack of 10)
units
Audio - - - - Surface Mount - Dual 1 SOIC 14 Differential Differential 120MHz
RS Stock No. 197-7121
Mfr. Part No.DRV134PA
HK$49.415
Each (In a Pack of 2)
units
Audio 2 Channel Mono - 0.0936W Class A-B Surface Mount 18 V - 1 PDIP 8 Differential - 1.5MHz
RS Stock No. 162-4885
Mfr. Part No.TPA301D
HK$9.161
Each (In a Tube of 75)
units
Audio Power Amplifier 1 Channel Mono Speaker 0.35W Class A-B Surface Mount 3 V, 5 V Single - SOIC 8 Single Ended Differential 1.4MHz