This simulation demonstrates the working of a first-order active low-pass filter. The input signal frequency is gradually varied from 10 Hz to 50 kHz. At lower frequencies, the output (blue waveform) follows the input signal (orange waveform) with almost no attenuation, showing that low frequencies pass through the filter. As the frequency increases beyond the filter's cutoff region, the output amplitude starts decreasing, effectively attenuating higher-frequency components while allowing lower

Active Lowpass Filter: This is a 1st-order active low-pass filter using an op-amp. The input passes through an RC network (1 kΩ and 1 µF), which sets the cutoff frequency at 159Hz. The op-amp provides buffering and gain without loading the RC stage. At 10 Hz input, well below cutoff, both input and output signals closely follow each other, indicating minimal attenuation. As the input frequency increases, the attenuation increases and the output signal amplitude reduces. #electronicsrd #Electroni