NAU8214SG

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Audio linear amplifiers are used to increase the power of an audio signal in order to make it louder. The NAU8214SG is a high-performance, high-speed audio power amplifier designed to drive low to medium power speakers. It offers high efficiency, low quiescent current and wide temperature operation, making it an ideal choice for portable and automotive audio applications.

The NAU8214SG is an audio linear amplifier that uses Bipolar Complementary Junction Transistor (BJT) architecture. It is manufactured using high-voltage bipolar transistors to achieve high voltage gains, low distortion and low output noise. The amplifier features very low EMI and low THD+N. It also offers high slew rate and fast transient response which makes it suitable for audio applications with varying frequencies and high-speed transients.

The amplifier uses a symmetrical architecture with a differential input stage, a level-shift stage and a class AB output stage. The differential input stage provides high common-mode rejection and excellent input impedance. The level-shift stage reduces quiescent current and provides for high voltage gain. The Class AB output stage is designed to provide high current capability and low distortion. The amplifier also features a unity gain stable compensation network to minimize oscillations and reduce phase shift.

The NAU8214SG operates at a wide range of supply voltages, spanning from 4.5V to 28V. It is available in a small 8-pin package which makes it well suited for space-constrained applications such as portable and automotive audio systems. The amplifier is manufactured to meet RoHS-compliant requirements and is rated for high temperature operation up to +125ºC. It also offers a high power efficiency and a low quiescent current.

The NAU8214SG is well suited for a wide range of audio applications. It can be used to drive low- to medium-power speakers in automotive, portable and professional audio systems. Its performance extends to professional multimedia systems, home theaters and sound systems used for public-address applications. Its low EMI, low THD+N and very high slew rate make it suitable for applications requiring high-frequency transients that would normally be distorted by typical amplifiers.

In summary, the NAU8214SG is a high-performance audio power amplifier designed for use in low- to medium-power speaker systems. It employs a BJT architecture with a differential input stage, level-shift stage, and class AB output stage. The amplifier offers high efficiency, low quiescent current and wide temperature operation, and is available in a small 8-pin package. It is well suited for a variety of application including automotive, portable and professional audio systems, as well as sound systems used for public-address applications.

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