A 4th-order single-loop follow-the-leader-feedback (FLFB) low-pass continuous-time filter in CMOS 0.18 μm is hereby presented. The outstanding FLFB noise behaviour is exploited to allocate the power consumption to linearity performance. The low-pass filter prototype features 22.5 MHz-3 dB frequency, 21.5 dBm-IIP3 and 76 μVRMS input referred in-band integrated noise. The overall power consumption is 7 mA from a 1.8 V supply voltage. The signal-to-noise ratio for a -40 dB-total harmonic distortion is 69 dB.
De Matteis, M., Pezzotta, A., Pipino, A., Baschirotto, A., D'Amico, S. (2016). 21.5 dBm-IIP3 22.5 MHz fourth-order follow-the-leader-feedback analogue filter. ELECTRONICS LETTERS, 52(13), 1100-1102 [10.1049/el.2016.0800].
21.5 dBm-IIP3 22.5 MHz fourth-order follow-the-leader-feedback analogue filter
De Matteis, M
;Pezzotta, A;Pipino, A;Baschirotto, A;
2016
Abstract
A 4th-order single-loop follow-the-leader-feedback (FLFB) low-pass continuous-time filter in CMOS 0.18 μm is hereby presented. The outstanding FLFB noise behaviour is exploited to allocate the power consumption to linearity performance. The low-pass filter prototype features 22.5 MHz-3 dB frequency, 21.5 dBm-IIP3 and 76 μVRMS input referred in-band integrated noise. The overall power consumption is 7 mA from a 1.8 V supply voltage. The signal-to-noise ratio for a -40 dB-total harmonic distortion is 69 dB.
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