The possibility of implementing the double-sampling (DS) technique in IIR first- and second-order switched-capacitor (SC) decimators is considered. The DS-SC circuits that result are designed using the same procedure as standard IIR decimators, and only a different SC implementation results with a reorganized clock phasing. The main advantage is that the time allowed for the op-amps to settle can be equal to the output sampling period rather than one half of it. Using the proposed DS decimators allows to design high-frequency SC filtering systems (an anti-aliasing SC decimator filter and a "core" DS-SC filter) where the op-amp speed requirements are the same in each block

Baschirotto, A., Castello, R., Montecchi, F. (1992). IIR Double-Sampled Switched-Capacitor Decimators for High-Frequency Applications. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I. FUNDAMENTAL THEORY AND APPLICATIONS, 39(4), 300-304 [10.1109/81.129459].

IIR Double-Sampled Switched-Capacitor Decimators for High-Frequency Applications

Baschirotto, A;
1992

Abstract

The possibility of implementing the double-sampling (DS) technique in IIR first- and second-order switched-capacitor (SC) decimators is considered. The DS-SC circuits that result are designed using the same procedure as standard IIR decimators, and only a different SC implementation results with a reorganized clock phasing. The main advantage is that the time allowed for the op-amps to settle can be equal to the output sampling period rather than one half of it. Using the proposed DS decimators allows to design high-frequency SC filtering systems (an anti-aliasing SC decimator filter and a "core" DS-SC filter) where the op-amp speed requirements are the same in each block
Articolo in rivista - Articolo scientifico
IIR decimators; SC filtering systems; SC implementation; antialiasing filter; clock phasing; double sampling; first-order type; high-frequency applications; infinite impulse response; op-amps; second-order; switched-capacitor decimators; active filters; active networks; switched capacitor filters; switched capacitor networks
English
1992
39
4
300
304
none
Baschirotto, A., Castello, R., Montecchi, F. (1992). IIR Double-Sampled Switched-Capacitor Decimators for High-Frequency Applications. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I. FUNDAMENTAL THEORY AND APPLICATIONS, 39(4), 300-304 [10.1109/81.129459].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/37237
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