Title :
Low-Cost Digitally-Programmable CMOS Switched-Capacitor Biquad
Author :
Paulino, Nuno ; Franca, José E. ; Martins, F.P.
Author_Institution :
Instituto Superior T?cnico, Integrated Circuits and Systems Group, Av. Rovisco Pais, 1, 1096 Lisboa Codex, Portugal
Abstract :
The digital programmability of an SC biquad using quasi-passive algorithmic DACs leads to a significant reduction of the overall capacitor area needed for integration and therefore offers a more compact, cost-effective solution than binary-weighted C-arrays. This is demonstrated with a 1.2 ¿m CMOS prototype chip implementing an 8-bit programmable general purpose SC biquad that occupies a total active area of only 0.52 mm2.
Keywords :
CMOS digital integrated circuits; CMOS integrated circuits; CMOS technology; Capacitance; Prototypes; Silicon; Switched capacitor circuits; Switches; Switching circuits; Timing;
Conference_Titel :
Solid-State Circuits Conference, 1994. ESSCIRC '94. Twentieth European
Conference_Location :
Ulm, Germany
Print_ISBN :
2-86332-160-9
