Op amps are often the most critical elements in any RC-active-filter design and deserve much attention (see sidebar “Critical op-amp parameters”). Voltage-feedback op amps are still the mainstay of RC ...

1. This circuit provides a wideband bandpass filter optimized for FRS applications, with a 10:1 ratio in its corner frequencies. The corner of the reconstruction filter and the anti-aliasing ...

Analysis shows that the steady-state output of this RC filter, when driven by a 50-kHz, 1-V, 60% duty-cycle PWM wave, is also periodic and stays within a narrow amplitude band. References 1.

The RC network made of R1, R2, C1 and C2 works as input bandpass filter with a 6 dB cut-off at 500 Hz and 3400 Hz, The opamp A1 functions as a buffer stage between the input filter and the state ...

Internal RC OSC, optional outout frequency 54MHz/27MHz/18MHz/13.5MHz, input VBG=0.8V; UMC 40nm LP/RVT Logic Process ...