학술논문
A 2.5 GHz programmable wideband low pass filter with a hybrid Continuous-Time/Discrete-Time equalizer in 40 nm CMOS
Document Type
Conference
Source
2016 Asia-Pacific Microwave Conference (APMC) Microwave Conference (APMC), 2016 Asia-Pacific. :1-4 Dec, 2016
Subject
Language
ISSN
2165-4743
Abstract
This paper presents a programmable wideband low pass filter (LPF) with a hybrid Continuous-Time (CT)/Discrete-Time (DT) equalizer. Unlike the conventional DT LPF design, the proposed LPF eliminates sample & hold circuits, enabling to achieve much wider bandwidth. The transfer function is derived from CT/DT hybrid analysis. A prototype has been fabricated in 40 nm CMOS. The proposed LPF achieves 2.5 GHz bandwidth by wideband equalization with capacitance ratio (C ratio) and clock frequency (ƒ CK ) programmability. The proposed LPF occupies 0.048 mm 2 of active area.