CIRCUIT060056
Band-pass Sallen-Key filter circuit
CIRCUIT060056
Overview
This circuit is a single-supply, 2nd-order Sallen-Key (SK) band-pass (BP) filter. It is designed by cascading an SK low-pass filter and an SK high-pass filter. Vref provides a DC offset to accommodate for a single supply.
Features
- Input: Vi = -2.45 V to 2.45 V
- Output: Vo = 0.05 V to 4.95 V
- Supply:
- Vcc = 5 V
- Vee = 0 V
- Gain: 1 V/V
- Low cutoff frequency: 1 kHz
- High cutoff frequency: 10 kHz
- Vref = 2.5 V
Technical documentation
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