MAX7403ESA+

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The MAX7403ESA+ is an active filter designed specifically to enhance the performance of differential systems while simultaneously optimizing response times and improving system accuracy. The device combines the convenience of a single chip solution with both low-pass and high-pass filtering capabilities. It is applicable in a range of interface and filtering applications, such as video and audio devices, HVAC systems, audio systems, and motor controllers.

The MAX7403ESA+ integrates two single-pole filters on its die to achieve the desired performance goals. The low-pass filter is used to attenuate high frequencies from the input signal, which reduces noise and prevents aliasing. At the same time, the high-pass filter attenuates low frequencies, allowing for faster response times and improved accuracy. In addition to reducing noise and improving accuracy, the device also provides enhanced differential signal noise immunity.

The MAX7403ESA+ is designed to operate on a +5 V or a +3.3 V power supply. The device can be operated up to a maximum frequency of 100 MHz and can filter up to PSRR 100 dB. The -3 dB bandwidth of the low-pass filter is adjustable, while the -3 dB bandwidth of the high-pass filter is fixed at 5 MHz. The high-pass filter is also adjustable, allowing for an adjustable gain of up to 40 dB. The maximum noise transfer ratio of the device is 28 dB.

The device is suitable for use in both analog and digital applications and is able to support various combinations of filter types, gains, and cut-off frequencies. It can easily be incorporated into existing systems, saving design time and reducing cost and effort. The integration of both filters on the same die ensures that noise performance is maximized, allowing for faster response times and increased accuracy.

In summary, the MAX7403ESA+ is an active filter designed to provide enhanced performance in both analog and digital applications. It combines the convenience of a single chip solution, with both low-pass and high-pass filtering capabilities, while also providing improved system accuracy and response times. Additionally, it can be operated up to a maximum frequency of 100 MHz and can filter up to PSRR 100 dB, providing noise immunity and signal enhancement. The device is highly suitable for use in a range of interface and filtering applications, such as video and audio systems, HVAC systems, audio systems, and motor controllers.

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