Question: A lowpass filter for an implantable device for medical applications has a bandwidth of 125 Hz. As the circuit is to be integrated, the largest capacitor that may be used is 15 pF. Approximately what are the resistor values needed to realize the required time constants in this low-frequency active RC filter? The filter is to be realized as a switched-capacitor circuit, clocked at 100 times the filter's bandwidth. What is the size of the switched capacitors CR needed to implement the resistors?