This letter reports a simple and economic method of programming the frequency-response parameters of the switched-capacitor double-integrator biquad. It is shown that along with the programming facility, the scheme yields considerable reduction in the capacitor spread and hence in silicon area. Copyright © 1984 by The Institute of Electrical and Electronics Engineers, Inc.

M. Sasikumar

M. A. Reddy

CAPACITOR SPREAD REDUCTION

DOUBLE-INTEGRATOR BIQUAD

PROGRAMMABLE SWITCHED-CAPACITOR FILTER

SILICON AREA

SEMICONDUCTING SILICON - APPLICATIONS

ELECTRIC FILTERS, SWITCHED

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Programmable switched-capacitor filter with no additional silicon area

Proceedings of the IEEE

A systematic approach to the design of stray‐insensitive switched‐capacitor (SC) circuits from active‐RC or RLC prototypes employing a parasitic insensitive SC differential voltage‐controlled current‐source as a basic building block is attempted. Procedures for transforming active‐RC and RLC circuits into stray‐insensitive SC circuits are formulated and illustrated with typical examples. Restrictions on the pole‐frequency and pole‐Q of the SC biquad are derived so that it closely emulates the frequency response of the original active‐RC biquad. the SC biquad and the ladder filter derived by the proposed procedures were simulated with discrete components and tested in the laboratory. Test results agree closely with the theoretical predictions. Copyright © 1987 John Wiley & Sons, Ltd.

International Journal of Circuit Theory and Applications

A systematic approach to the design of stray‐insensitive sc circuits from active‐RL or RLC prototypes

IEEE Journal of Solid-State Circuits

An electrically-programmable switched capacitor filter

Programmable Switched-Capacitor Filter with no Additional Silicon Area

Journal	Proceedings of the IEEE
ISSN	00189219
Open Access	No