MOS switched-capacitor filters using voltage inverter switches
Abstract
The paper examines MOS switched-capacitor filters which use voltage inverter switches. Low-sensitivity switched-capacitor filters imitating LC and LC/unit-element structures can be built by means of capacitances, ordinary switches, and voltage inverter switches; the latter are simply realizable by electronic means. It was found that there are no restrictions on the operating rate (other than those resulting from the Nyquist theorem), or on the location of the attenuation poles; it was also found that the effects of parasitic capacitances can be overcome by proper design techniques. The experimental results of an integrated third-order low-pass filter are in agreement with theory.
- Publication:
-
IEEE Transactions on Circuits Systems
- Pub Date:
- June 1980
- Bibcode:
- 1980ITCS...27..527F
- Keywords:
-
- Lc Circuits;
- Low Pass Filters;
- Metal Oxide Semiconductors;
- Network Synthesis;
- Static Inverters;
- Switching Circuits;
- Bandpass Filters;
- Capacitors;
- Cmos;
- Frequency Response;
- Integrated Circuits;
- Sensitivity;
- Electronics and Electrical Engineering