Switched current filters
- 1 January 1990
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings G Circuits, Devices and Systems
- Vol. 137 (2) , 156-162
- https://doi.org/10.1049/ip-g-2.1990.0024
Abstract
‘Switched Currents’ is a new analogue sampled-data signal processing technique that can be implemented without the need for linear floating capacitors. This feature enables signal processors to be integrated in a standard digital VLSI process (CMOS), making the technique ideally suited for mixed analogue/digital ICs. Switched current cells are described, and a configuration for a universal integrator is developed that is exactly equivalent to a switched capacitor counterpart. With this integrator, complete switched current filters may be constructed from switched capacitor prototypes. This demonstrated by the ‘exact’ design and simulation of a sixth order lowpass filter with a cutoff frequency of 5MHz.Keywords
This publication has 1 reference indexed in Scilit:
- Switched currents-a new technique for analog sampled-data signal processingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003