An integrated switched-capacitor signal processing design system

• Published in: IEEE journal of solid-state circuits Vol. 25; no. 2; pp. 346 - 352
• Main Authors: Barlow, A.R., Takasuka, K., Nambu, Y., Adachi, T., Konno, J.-I., Nishimoto, M., Suzuki, S., Nemoto, K., Takashima, K.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-04-1990; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Circuit synthesis; Design automation; Design. Technologies. Operation analysis. Testing; Electronics; Exact sciences and technology; Filters; Integrated circuit synthesis; Integrated circuits; Network synthesis; Process design; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Signal design; Signal processing; Signal synthesis; Switched capacitor networks; System architecture; Operational amplifier; Switched capacity; Computer simulation; Integrated circuit; Equivalent circuit; Equalizer; Performance; Computer aided design; Optimization; Electric filter
• ISSN: 0018-9200; 1558-173X
• DOI: 10.1109/4.52155

A CAD system integrating switched-capacitor network function synthesis, circuit synthesis, and layout is presented. The tool addresses the design of programmable gain, cosine, interpolation, and arbitrary transfer functions in addition to canonical filter structures. Amplifier design is based on numerical optimization of highly accurate analytic models derived with the aid of symbolic-mathematics-based model development aids. The physical design of the filter is created by a general-purpose switched-capacitor circuit synthesizer. The tool makes it possible to synthesize a complete switched-capacitor signal path with full handcrafted quality in a single day. Examples taken from actual IC designs illustrate the utility and accuracy of the various functions.< >