MAX7426EUA+T

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The MAX7426EUA+T is part of Maxim Integrated’s family of filters and active interface products. It is a dual-channel voltage-mode active filter for piezo transducer and terminal applications. The product is used in audio systems, as well as in medical and automotive applications.

The device includes two low-pass active filters, each with a maximum cutoff frequency of 1.4MHz. The filters feature active direct current (DC) removal and optimized pole placement for minimal phase shift. The filters also provide temperature compensation, which is a key feature in automotive applications.

The MAX7426EUA+T has a power supply voltage range of 3V to 6V. It supports analog input voltages ranging from 0V to 5V, with a maximum peak-to-peak voltage range of 10V. It supports output voltages of 0V to 16V and can supply up to 500mA of output current. It also provides optimized comparator hysteresis and an adjustable voltage threshold, giving it the ability to detect and filter out interference signals.

The device also includes a disable input pin with several programmable options. This feature allows the device to function as an amplifier, allowing it to be used in a variety of applications. It is also equipped with wide common-mode range input capability, allowing it to work with a wide range of input signals.

Overall, the MAX7426EUA+T provides an active filter solution for high-performance audio and other applications where minimal phase shift and low distortion are required. Its wide range of features make it an ideal choice for both piezo transducer and terminal applications.

In terms of working principle, the MAX7426EUA+T essentially operates as an amplifier. This amplifies the input signal with a gain of configured using a resistive network on the input. The output of the amplifier is then filtered using two low-pass filters, resulting in a filtered version of the input signal at the output. The device’s temperature compensation circuitry helps to ensure that the filters’ output remains stable over the device’s operating temperature range.

The MAX7426EUA+T can be used in a wide range of applications, including audio systems, medical devices, automotive systems and more. Its dual-channel active filter design helps to reduce distortion, while its temperature compensation circuitry ensures stability in a wide range of operating conditions. The device’s adjustable voltage threshold and wide common-mode range input capability make it ideal for interfacing with a variety of signals.

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