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A 4-bits active inductor-based lattice 24.5–50 ps all-pass filter
- Source :
- Engineering Science and Technology, an International Journal, Vol 35, Iss , Pp 101263- (2022)
- Publication Year :
- 2022
- Publisher :
- Elsevier, 2022.
-
Abstract
- In this paper, a lattice network-based second-order all-pass filter (APF) design is presented. Unlike previously published works, floating active inductors (FAIs) are used in the lattice topology. Inductance (L) and quality factor (Q) tunability of Q-enhanced FAIs are employed to ensure the designed APF is robust to process-voltage-temperature (PVT) variations and to make the filter’s group delay responses are constant for a wide frequency range. The operation of the proposed APF is verified by post-layout simulations using Cadence Design Suite in TSMC 65-nm CMOS technology. The operating frequency of the designed filter reaches 5 GHz with a delay range of 24.5-50 ps. The designed filter has a gain of -0.15 dB, which varies up to 1.47 dB in the operating frequency range. The group delay error is 114 fs, which is a 0.294% variation in the nominal case. The input-referred 1 dB compression point (P1dB) and the third-order interception point (IIP3) values are attained as -5.21 dBm and +9.19 dBm, respectively. At the nominal condition, the noise figure is achieved as 16.7 dB. The circuit occupies only 0.0189 μm2 while drawing 29 mA from a 1.5 V supply.
Details
- Language :
- English
- ISSN :
- 22150986
- Volume :
- 35
- Issue :
- 101263-
- Database :
- Directory of Open Access Journals
- Journal :
- Engineering Science and Technology, an International Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.20b51d71ef6149debc2da14a5ad4c878
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.jestch.2022.101263