This is a small personal project where I modelled a simple RC low-pass filter in LTSpice to find its cutoff (-3 dB) frequency. The aim was to verify the expected behaviour of the filter and compare ...

A scheme of simple band-pass RC- and LR- filters on operational amplifiers containing only one capacitor or inductor and 3 resistors is proposed. A comparison is made of the amplitude-frequency ...

R = 10 kΩ, C = 1 nF ⇒ ( f_c = \frac{1}{2\pi RC} \approx 15.9 \text{ kHz} ) Op-amp as a voltage follower (+ = RC node, − shorted to OUT) Supplies: ±15 V (common ground) ...

Driving an analog-to-digital converter (ADC) for optimum mixed-signal performance is a design challenge. Figure 1 shows a standard ADC driver circuit. During ADC acquisition time, the sampling ...

This article is part of the Ideas for Design Series: Vol. 3, No. 9. Many communications and sensor applications require a bandpass filter with wide bandwidth. This filter typically requires precision ...

A research team from Singapore has successfully designed the world's smallest on-chip low-pass filter which is 1,000 times smaller than existing off-chip filters. A research team from Nanyang ...

How any string instrument sounds depends on hundreds of factors; even the tiniest details matter. Seemingly inconsequential things like whether the tree that the wood came from grew on the north slope ...

Abstract: This brief presents a 357–706 MHz dual-mode low-pass filter featuring an oscillator-based calibration method to address bandwidth deviations caused by process variations and component ...