Can I replace higher capacitance value MLC capacitor in Sallen-Key topology filter with 2-3 lower value capacitors in parallel (with total capacitance equal to replaced cap)? I tried it in TINA-TI and AC Transfer characteristics are identical. Are there any contraindications to this?
The filter is 0.6..6.4Hz band pass. I started designing it using application report with basic equations, then did a lot of changes to adjust transfer characteristics. Changes include using capacitors with values not available on market.