Audio amplifiers are linear integrated circuits (ICs) designed to use a vast range of electronic circuits for audio, signals’ amplitude, and other audio applications. These linear ICs feature different discrete input and output state numbers with consistent input level ranges to operate. An audio amplifier amplifies, increases, and controls the signal strength, along with enhancing the audio signal’s quality. Linear audio amplifier ICs are categorized into different classes with a range of applications in audio amplifiers, DC amplifiers, analogue-to-digital converters (ADCs), and many more.
Why Use Audio Amplifiers?
Audio amplifier ICs are widely used due to their small size and adjustability in various amplification equipment enabling systems to make complicated designs in limited spaces. Furthermore, they are useful and come in standard semiconductor packages in surface or through-hole mounting types.
What Are the Different Types of Audio Amplifiers?
Linear audio amplifier ICs are classified into the following types.
- Audio amplifier
- Speaker amplifier
- Operational Amplifier (Op Amps)
- Audio power amplifier
- Audio line driver
- Compandor
- Audio system
- Headphone amplifier
- Microphone pre-amplifier
- Bridge amplifier.
Factors to Consider When Choosing Audio Amplifier:
The following are crucial factors that should be considered when selecting the desired IC type.
- Power – Maximum power that is dependent on the amplification’s size and scope required.
- Type of Input Signal - Usually single-ended or differential inputs.
- Type of Output Signal - Usually differential outputs or single-ended.
- Output Type - Mono outputs feature a single channel, whereas there is more than one in stereo outputs.
Typical Applications of Audio Amplifiers:
Audio amplifier integrated circuits find their applications in a range of electronic circuits and devices, including:
- Radio Amplifiers
- TVs
- Keyboards
- Car Stereos
- Headphones
- Toys
- Ultrasonic Drivers
- Power Converters
- Line Drivers.
