Active band-pass filter
A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An active filter also uses an active component like an operational amplifier.
- Net Alias
- Evaluate Measurement
- Append Waveform
- Monte Carlo/Worst Case
- Component tolerance
- Sensitivity analysis
Create the schematic below in OrCAD Capture. This is an active band-pass filter with Fc = 1,59kHz og Q = 10
- How does the frequency response look
- Find the cut-off frequency Q and Vmax by using PSpice
- Do the same for R1=R2=R3=R4=1,4k og R5=4,02k
- Compare the two cases by using PSpice
- The resistors and the capacitors have a tolerance of 5%. Use Monte Carlo simulations to find out how such filter will look like in reality.
- Now change the tolerance of all resistors to 0,1% and run Monte Carlo again
- How does the signal look like at input and output?
- Use Sensitivity under PSpice Advanced Analysis to find out which components have the largest impact on the cut-off frequency Q and Vmax