A 2.4 GHz Low-Power Sixth-Order RF Bandpass Converter in CMOS

J Ryckaert, J Borremans, B Verbruggen… - IEEE Journal of Solid …, 2009 - ieeexplore.ieee.org
A sixth-order RF bandpass DeltaSigma ADC operating on the 2.4 GHz ISM band, which is
suitable for RF digitization is presented. The bandpass loop filter is based on digitally …

A 6.1 gs/s 52.8 mw 43 db dr 80 mhz bandwidth 2.4 ghz rf bandpass δσ adc in 40 nm cmos

J Ryckaert, A Geis, L Bos… - 2010 IEEE Radio …, 2010 - ieeexplore.ieee.org
A 2.4 GHz 4th order BP ΔΣ ADC is presented. The feedforward topology uses Gm-LC
resonators that can be calibrated in frequency. The quantizer is split in 6 interleaved …

A 1.5-GHz 63dB SNR 20mW direct RF sampling bandpass VCO-based ADC in 65nm CMOS

YG Yoon, SH Cho - 2009 Symposium on VLSI Circuits, 2009 - ieeexplore.ieee.org
This paper presents a bandpass ADC which exploits enhanced time-resolution of a deep
submicron CMOS process. Unlike conventional bandpass ADCs that rely on voltage …

A 14bit 500MS/s 85.62 dBc SFDR 66.29 dB SNDR SHA-less pipelined ADC with a stable and high-linearity input buffer and aperture-error calibration in 40nm CMOS

M Chen, K Wu, Y Shen, Z Wang, H Chen… - IEICE Electronics …, 2021 - jstage.jst.go.jp
This paper presents a 14bit 500MS/s SHA-less pipelined analog-to-digital converter (ADC)
implemented in 40nm CMOS. A highlinearity pseudo-differential push-pull input buffer with …

Sigma-delta-based analog-to-digital converter

L Bos, J Ryckaert, G Van Der Plas… - US Patent …, 2012 - Google Patents
BACKGROUND Steered by CMOS scaling, which allows improvements in the performance
of digital circuits while lowering the cost, wireless radios are becoming increasingly digital …

Sigma delta RF modulator having capacitive coupling, analog/digital converter and apparatus including such a modulator

H Aboushady, N Beilleau, D Belfort, A Ashry - US Patent 9,306,594, 2016 - Google Patents
A continuous-time sigma delta radio frequency modulator is provided, including at least two
LC resonators coupled in parallel by a coupling capacitive element, producing an at least 4 …

Methods and devices for modifying active paths in a K-delta-1-sigma modulator

S Ardalan - US Patent 9,685,976, 2017 - Google Patents
The invention relates to an improved K-Delta-1-Sigma Modulators (KG1Ss) that achieve
multi GHz sampling rates with 90 nm and 45 nm CMOS processes, and that provide the …

Study of Q factor and loop delay effects of a continuous-time Δ Σ AD modulator

H Lin, A Motozawa, PL Rée, K Iizuka… - 2009 IEEE 8th …, 2009 - ieeexplore.ieee.org
This paper describes the design and analysis of a continuous-time bandpass Δ Σ AD
modulator for RF sampling. We determined the SNDR degradation due to finite Q value of …

Power-aware evaluation flowfor digital decimation filter architectures for high-speed adcs

D Novo, R Fasthuber, P Raghavan… - … IEEE Workshop on …, 2009 - ieeexplore.ieee.org
The raising cost of the latest technology nodes as well as the design cost associated has
motivated an increasing push for flexible radio implementations. In this context, Sigma-Delta …

High frequency low power CMOS band-pass filter for mobile applications

H Lin, J Hu - 2013 2nd International Symposium on …, 2013 - ieeexplore.ieee.org
This paper presents a new type of high frequency, low power CMOS band-pass filter which
be applied in high frequency band-pass delta-sigma AD modulator. which be the part of …