The MAX7400ESA+T is developed and manufactured by Maxim Integrated. It is a low-power, fourth-order continuous-time active filter designed for various applications such as anti-aliasing, audio signal processing, and waveform conditioning. The IC operates with a single-supply voltage range of 4.5V to 12V, allowing for compatibility with a wide range of power sources. It consumes a very low quiescent current of just 170µA, making it suitable for battery-operated devices where power efficiency is crucial.
The main feature of the MAX7400ESA+T is its active filter functionality. It implements a programmable low-pass or high-pass filter by generating a cutoff frequency set by external resistors and capacitors. These filters provide a substantial suppression of unwanted signals or noise, ensuring accurate and reliable data or audio transmission. Additionally, the IC allows setting the gain of the filter through external resistors, enabling users to fine-tune the output signal level as per their requirements.
Another important aspect of the IC is its excellent linearity, which contributes to maintaining the integrity of the input signal. The IC offers a high signal-to-noise ratio (SNR) of 98dB with a low distortion level of 0.01%, minimizing any undesirable artifacts in the processed signal
