LM4930LQ/NOPB

The LM4930LQ/NOPB is an audio amplifier consisting of two high-performance, low-noise amplifier stages, each capable of driving an 8 ohm load with up to 2 watts of power. The first stage is an operational amplifier, a differential input stage that amplifies a single-ended input signal. The second stage is an output stage with a high-impedance, low-noise input, which amplifies the signal to its final destination.

The LM4930LQ/NOPB offers superior sonic performance with low distortion and noise. Its highly efficient circuit design makes it ideal for use in digital audio applications, such as automotive or consumer audio applications, as well as on-board power amplifiers and speaker systems. Furthermore, its single-supply operation, low operating current, and ability to drive low-impedance loads make it suitable for battery-powered applications.

The LM4930LQ/NOPB can be configured in three different ways: as a voltage amplifier, a current amplifier, or a unity-gain amplifier. In voltage-amplifier mode, the signal\'s voltage is amplified by the first stage, and a gain of up to 1,000 can be achieved depending on the gain selection. In current-amplifier mode, the signal is amplified by the second stage and a variable gain of up to 400 is available. Finally, in unity-gain amplifier mode, the signal is amplified by both stages but the overall gain is unity. Since this mode is used for level control applications, a variable gain of up to 40 is possible.

The LM4930LQ/NOPB can be powered by a single 5V or 3.3V supply, and its maximum operating power is 1.5W. The low-current-drain, low-heat-dissipation characteristics of the LM4930LQ/NOPB make it ideal for applications that require extended battery life and low power consumption. Furthermore, the low-noise design of the operational amplifier and output stage ensure that the amplifier produces a low level of noise in all operating modes.

In addition to its low power consumption, the LM4930LQ/NOPB has several other features that make it an attractive choice for audio applications. Its low-input-impedance design allows it to be used with very low capacitive loads, allowing it to be used with a wide variety of speakers or headphones. Its fast slew rate, low distortion, and wide dynamic range make it an ideal choice for applications that require accurate and musical reproduction of audio signals. Finally, the LM4930LQ/NOPB has an integrated thermal protection circuit to protect the amplifier from short-term overloads, as well as an overload-protection circuit to protect it from permanent damage.

The LM4930LQ/NOPB is a high-performance audio amplifier that offers low-noise operation, low power consumption, and excellent sonic performance. Its wide gain range, fast slew rate, and low distortion make it ideal for a variety of audio applications such as automotive, consumer, and on-board power amplifiers and speaker systems. Its low-input-impedance design and integrated thermal protection circuit ensure that the amplifier operates reliably and safely in all conditions.