INA1650IPW

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INA1650IPW is an audio special purpose amplifier with high precision and high speed. It is designed for applications such as audio systems, loud speaker systems, public address systems and other audio systems.

Overview

The INA1650IPW is a high-speed, high-precision, differential amplifier that can be used for wide bandwidth audio signals. It has two independent gain stages, each with its own independent gain control. It is capable of delivering, on average, 3.0dB of gain in a ±3.3V to ±15V range with a gain accuracy of 0.1%.

The INA1650IPW offers high slew rate, wideband audio performance and excellent common-mode rejection. It utilizes a high-efficiency Class-D amplifier topology and is capable of delivering up to 10W of power, with a low quiescent current draw. It also features a low-noise input buffer stage that helps minimize high-frequency noise, allowing the amplifier to be used with a variety of low-level audio sources.

Features

• High slew rate: 30V/us
• High gain fidelity: ±0.1%
• Output power: 10W
• Low power consumption: 6mA quiescent
• Low noise: -95dBu
• Wideband audio performance
• EMI-resistant design
• Differential input stage

Application Field

The INA1650IPW can be used in a variety of applications, including audio systems, loud speaker systems, home theater systems, and public address systems. It is particularly well suited for mobile applications due to its low power consumption and EMI-resistant design.

In addition, the INA1650IPW can be used as a low-cost, high-speed amplifier in automotive applications such as engine and vehicle audio systems, and in industrial applications such as factory automation, process control, and machine vision systems.

Working Principle

The INA1650IPW works on the principle of differential amplification. It utilizes two independent gain stages to produce an amplified output signal. Each stage independently amplifies the input signal and then the differential output is fed to the output stage of the amplifier, where the signal is further amplified.

The gain of each stage is controlled by a resistor divider network between the +In and -In terminals. The gain of each stage is equal to 1 + (Rg/Rf), where Rg is the resistance of the resistor in series with the positive input and Rf is the resistance of the resistor in series with the negative input. By adjusting the gain of each stage separately, the amplifier’s overall gain can be adjusted.

The INA1650IPW also features a low-noise input buffer stage to minimize high-frequency noise. The amplifier is designed for wide-bandwidth audio applications, so it can handle a wide range of frequencies with minimal distortion.

Conclusion

The INA1650IPW is an audio special purpose amplifier designed for applications requiring high-speed, high-precision amplification. It can be used in a wide range of audio systems, including home theater systems, public address systems, and mobile audio systems. It offers excellent common-mode rejection, high slew rate, and wideband audio response. It also has a low power draw, making it ideal for use in mobile applications. Finally, it utilizes a differential amplifier topology with two independent gain stages to produce an amplified output signal.

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