The LTC1063CN8#PBF is a 5th order DC accurate clock-tuneable Butterworth Low pass Filter features cut-off frequency is controlled either by an internal or external clock. The clock-to-cut off frequency ratio is 100:1. The on-board clock is power supply independent and it is programmed via an external RC. The 50μVRMS clock feed through is considerably reduced over existing monolithic filters. The LTC1063 wideband noise is 95μVRMS and it can process large AC input signals with low distortion. With ±7.5V supplies, for instance the filter handles up to 4VRMS (92dB S/N ratio) while the standard 1kHz THD is below 0.02%, 80dB dynamic ranges (S/N +THD) is obtained with input levels between 1 and 2.3VRMS. The LTC1063 features an internal oscillator which can be tuned via an external RC. The LTC1063's internal oscillator is primarily intended for generation of clock frequencies below 500kHz.