Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

MAX4461UESA+ Application Field and Working Principle

The MAX4461UESA+ is a dual variable-gain amplifiers (VGAs) designed for microphone preamplifier applications, such as in sound bars, home theater systems, and PC audio systems. This device offers a wide range of gains up to +8 dB and includes an enable input, a gain-setting enable pin, output shutdown, a wide bandwidth of 10 MHz, and low noise and distortion performance. This device features an input referred noise of 1.5 nV/√Hz, and high-gain flat band noise of 2.6 nV/√Hz. It also includes precision gain adjustment range of up to 8 dB, an output offset error of 0.5 mV, and an output referred noise of 2.0 nV/√Hz. In addition, it has a slew rate of 6 V/µs, current blinding immunity, and a wide supply operating range of 15 V and application flexibility. The MAX4461UESA+ is designed to provide superior performance in applications requiring wide bandwidth and low-noise operation.

Classification

The MAX4461UESA+ belongs to the Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps category.

Working Principle

The MAX4461UESA+ is based on an integrated circuit (IC), which consists of two gain channels, each of which contain two sections: one is a low-noise, wide-bandwidth VGA amplifier and the other is an adjustable current source for implementing adjustable gain stages. An enable pin is included to control the gain stages. The device is designed to provide wide-range gains and low noise performance, allowing it to be used in microphone preamplifier applications such as sound bars, home theater systems, and PC audio systems.The two sections of the MAX4461UESA+ have different functions. The low-noise, wide-bandwidth VGA amplifier is used to amplify audio signals. The adjustable current source is used to control the maximum gain of the channel, allowing for gain adjustment. The IC also includes a switchable output driver, providing the user with the flexibility to use the device for high-side or low-side electrode output applications.The MAX4461UESA+ features a gain range that can be adjusted up to 8 dB, providing a wide choice of gain settings. The device has a low noise floor of 1.5 nV/√Hz, making it well-suited for audio applications. It also offers a wide operating range of 15 V, providing flexibility. In addition, the device is designed to provide high-side or low-side output electrodes and is designed to be immune to current blinding.The MAX4461UESA+ is designed to provide superior performance in applications requiring wide bandwidth and low noise operation. It is suitable for use in microphone preamplifier applications such as sound bars, home theater systems, and PC audio systems. The gain range, low noise floor, wide operating range, and current blinding immunity make this device a great choice for high-performance audio applications.

The specific data is subject to PDF, and the above content is for reference