TY - JOUR
T1 - New Gm-C All-pass and Amplitude-Equalizer Biquad
AU - Kamat, Dattaguru V.
AU - George, Mary Ann
N1 - Funding Information:
The authors wish to thank Dr P V Ananda Mohan, IEEE Life Fellow, Bangalore and Dr Rekha S, Dept. of ECE, NITK, Surathkal for useful suggestions in improving the quality of the manuscript.
Publisher Copyright:
© 2023 IETE.
PY - 2023
Y1 - 2023
N2 - In this paper, new Gm-C all-pass and amplitude-equalizer biquads are shown to be realized from a generalized Gm-C biquad filter structure by using Gm-simulated negative resistor in series with integrating capacitor in the lossless integrator. The non-ideality analysis of the all-pass/ amplitude-equalizer biquad using finite output conductance and parasitic output capacitance of Gm-cells is presented. The proposed Gm-C all-pass and amplitude-equalizer biquads are simulated for 0.18 μm CMOS technology with ± 0.9 V power supply in Cadence environment to validate the frequency response characteristics. For the Gm-C AP biquad filter designed for 1 MHz cut-off frequency and pole quality factor of 2, the power consumption is 82.37 µW, the input-referred noise is 137.6 (Formula presented.) and the dynamic range is 62.84 dB. The biquad has the figure of merit (FoM) of 0.2969 × 10−13 J.
AB - In this paper, new Gm-C all-pass and amplitude-equalizer biquads are shown to be realized from a generalized Gm-C biquad filter structure by using Gm-simulated negative resistor in series with integrating capacitor in the lossless integrator. The non-ideality analysis of the all-pass/ amplitude-equalizer biquad using finite output conductance and parasitic output capacitance of Gm-cells is presented. The proposed Gm-C all-pass and amplitude-equalizer biquads are simulated for 0.18 μm CMOS technology with ± 0.9 V power supply in Cadence environment to validate the frequency response characteristics. For the Gm-C AP biquad filter designed for 1 MHz cut-off frequency and pole quality factor of 2, the power consumption is 82.37 µW, the input-referred noise is 137.6 (Formula presented.) and the dynamic range is 62.84 dB. The biquad has the figure of merit (FoM) of 0.2969 × 10−13 J.
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U2 - 10.1080/03772063.2021.1874838
DO - 10.1080/03772063.2021.1874838
M3 - Article
AN - SCOPUS:85100552287
SN - 0377-2063
VL - 69
SP - 104
EP - 117
JO - IETE Journal of Research
JF - IETE Journal of Research
IS - 1
ER -