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.
Description:
A range of single channel power amplifier ICs
from Texas Instruments with power outputs from less than 1 watt to over 50 watts. These highly integrated devices incorporate many advanced features including thermal overload, short-circuit and safe operating area protection, ...
Description:
A range of highly integrated Class AB Audio
Power Amplifier ICs from Texas Instruments with dual or multiple outputs suitable for stereo and multi-channel applications. The amplifiers range from low-power devices suitable for driving headphones to high-power types with outputs ...
Description:
High Efficiency Combined with High Output PowerClass DG
Multilevel Modulation Ensures Maximum Efficiency Over Wide Output Power Range Improves Battery LifeLow 1.85mA Quiescent Current High Output Power at 1% THD+N1.54W at VPVDD = 3.6V, 8Ω + 68μH Load2.85W at VPVDD ...
Description:
The TDA7391PD is a bridge class AB audio
power amplifier specially intended for car radio high power applications. The high power capability together with the possibility to operate either in differential input mode or single ended input mode makes it ...
