| Dual 2nd-Order Filter in a 16-Pin QSOP Package High Accuracy Q Accuracy: ±0.2% Clock-to-Center Frequency Error: ±0.2% Rail-to-Rail Input and Output Operation Single-Supply Operation: +5V (MAX7490) or +3V (MAX7491) Internal or External Clock Highpass, Lowpass, Bandpass, and Notch Filters Clock-to-Center Frequency Ratio of 100:1 Internal Sampling-to-Center Frequency Ratio of 200:1 Center Frequency up to 40kHz Easily Cascaded for Multipole Filters Low-Power Shutdown: <1µA Supply Current |