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Series/Parallel Time-Multiplexed Switched-Capacitor Filters with Programmability Based on Non-Uniform Sampling

J. L. Ausín, G. Torelli, J. F. Duque-Carrillo, E. Sánchez-Sinencio
2006 Analog Integrated Circuits and Signal Processing  
The proposed approach uses a novel sampling technique, which eliminates the need for resolution/area tradeoffs.  ...  This paper presents an improved scheme for programmable time-multiplexed (TM) switched-capacitor (SC) filters.  ...  Introduction Switched-capacitor (SC) techniques are a very popular approach for the implementation of high-precision analog filtering functions.  ... 
doi:10.1007/s10470-006-2133-4 fatcat:fvqyxiziwvadhb6ipc674xrtcm

2019 Index IEEE Journal of Solid-State Circuits Vol. 54

2019 IEEE Journal of Solid-State Circuits  
., +, JSSC Oct. 2019 2703-2716 Field effect transistor switches High-Linearity Bottom-Plate Mixing Technique With Switch Sharing for N-path Filters/Mixers.  ...  ., +, JSSC Dec. 2019 3386-3395 A CMOS Polar Class-G Switched-Capacitor PA With a Single High-Current Supply, for LTE NB-IoT and eMTC.  ... 
doi:10.1109/jssc.2019.2956675 fatcat:laiuae7dtragjijttgfatsldmu

Spectral Spurs due to Quantization in Nyquist ADCs

H. Pan, A.A. Abidi
2004 IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications  
It is more efficient to spread the quantization error uniformly over the Nyquist band. This requires a good understanding of the spectral properties of Nyquist ADCs.  ...  Therefore, the SFDR of the ADC should be large, say, beyond 80 dB, so that the spurs do not block the weak legitimate channels; and the ADC must also operate at a sufficiently high rate, say, up to 100  ...  Since pipeline ADCs use switched-capacitor circuits, "good" switches are supposed to be available for implementing the randomization techniques. V.  ... 
doi:10.1109/tcsi.2004.832755 fatcat:nakwzuagxjfljfucqdgemb3aby

Characterisation and modeling of mismatch in MOS transistors for precision analog design

K.R. Lakshmikumar, R.A. Hadaway, M.A. Copeland
1986 IEEE Journal of Solid-State Circuits  
Extensive experimental data from a 3-pm CMOS process are used to verify these models.  ...  A characterization methodology is presented that accurately predicts the mismatch in drain current over a wide operating range using a minimumset of measured data.  ...  Simard-Normandin for her help with device characterization. Thanks are also due to M. King for many suggestions and discussions. The assistance of N.  ... 
doi:10.1109/jssc.1986.1052648 fatcat:i4fgdz2w7nfmxapa5afvr5utke

Dynamic Analog Speech Synthesizer

George Rosen
1958 Journal of the Acoustical Society of America  
Exploratory formal listening tests were conducted, with idealized geometries for the vocal tract, and piecewise-linear functions were used for describing the timing relations.  ...  An articulation score of 93 per cent was obtained for vowels made with a parabolic approximation to the tongue hump.  ...  The lowpass filter acts as a summing device for noise samples. whose output is, ideally, a rectangular wave with random zero-crossing times and whose two values are equiprobable and symmetrical about zero  ... 
doi:10.1121/1.1909541 fatcat:ivtdt5m67vbxrozpdr3kgu53a4

2021 Index IEEE Transactions on Circuits and Systems I: Regular Papers Vol. 68

2021 IEEE Transactions on Circuits and Systems Part 1: Regular Papers  
Channel bank filters A 270 nW Switched-Capacitor Acoustic Feature Extractor for Always-On Voice Activity Detection.  ...  ., +, TCSI Sept. 2021 3611-3620 A Cascaded Mode-Switching Sub-Sampling PLL With Quadrature Dual-Mode Voltage Waveform-Shaping Oscillator.  ... 
doi:10.1109/tcsi.2021.3134605 fatcat:txqhqj7nvnh6pp5dqloynq5jku

2020 Index IEEE Transactions on Microwave Theory and Techniques Vol. 68

2020 IEEE transactions on microwave theory and techniques  
, TMTT June 2020 2243-2250 Gonzalez, J.M.F., see Alex-Amor, A., TMTT Oct. 2020 4236-4248 Gonzalez-Carvajal, E., and Mumcu, G., Frequency and Bandwidth Tunable mm-Wave Hairpin Bandpass Filters Using Microfluidic  ...  Ghazizadeh, M.H., and Medi, A., Novel Trombone Topology for Wideband True-Time-Delay Implementation; TMTT April 2020 1542-1552 Ghazizadeh, M.H., and Medi, A., High Precision CMOS Integrated Delay Chain  ...  ., +, TMTT Jan. 2020 196-210 Capacitors A 68.5~90 GHz High-Gain Power Amplifier With Capacitive Stability Enhancement Technique in 0.13 μm SiGe BiCMOS.  ... 
doi:10.1109/tmtt.2021.3049615 fatcat:kik4orti4je4xdsgazdbmdoopy

2019 Index IEEE Transactions on Components, Packaging and Manufacturing Technology Vol. 9

2019 IEEE Transactions on Components, Packaging, and Manufacturing Technology  
., +, TCPMT Jan. 2019 28-38 Pipes Spreading Resistance in Flux Tubes With Variable Heat Flux and Nonuniform Convection.  ...  Wu, M., +, TCPMT July 2019 1396-1405 Spreading Resistance in Flux Tubes With Variable Heat Flux and Nonuniform Convection.  ... 
doi:10.1109/tcpmt.2019.2958004 fatcat:ch5qmieiofeplgdtjb43gqpx34

FPGA based controller drive of BLDC motor using digital PWM technique

A. Tashakori, M. Hassanudeen, M. Ektesabi
2015 2015 IEEE 11th International Conference on Power Electronics and Drive Systems  
sampled carrier based PWMcan be spread by randomising the carrier (switch) half-period T c = 1/2f c .  ...  The suggested topology is realized using three-level NPC voltage source inverter (VSI) with series capacitor to reduce dc link voltage and shunt capacitor to eliminate the high frequency switching components  ...  Bus clamping PWM (BCPWM) techniques uses discontinuous sequence in a sub cycle. Clamping method reduces the inverter switching losses and the line current distortion.  ... 
doi:10.1109/peds.2015.7203584 fatcat:ffarubukq5gothj7a2mkcdyit4

2021 Index IEEE Transactions on Electron Devices Vol. 68

2021 IEEE Transactions on Electron Devices  
., +, TED June 2021 2633-2640 Reducing Dynamism in DRAM With Bistable MEMS Switch as Sleep Transistor.  ...  Ansari, M.H.R., +, TED April 2021 1577-1584 Reducing Dynamism in DRAM With Bistable MEMS Switch as Sleep Tran-sistor.  ...  , Ang, K., and Yu, H. , Improvement of b-Ga 2 O 3 MIS-SBD Interface Using Al-Reacted Interfacial Layer ; TED July 2021 3314-3319 He, N., see Zhang, W., TED Aug. 2021 3956-3962 He, N., see Ma, J., TED  ... 
doi:10.1109/ted.2021.3138305 fatcat:37sowz27xjc4bjhktlrldi2nja

Electrical Scanning Probe Microscopy: Investigating the Inner Workings of Electronic and Optoelectronic Devices

S. B. Kuntze, D. Ban, E. H. Sargent, St. J. Dixon-Warren, J. K. White, K. Hinzer
2005 Critical reviews in solid state and materials sciences  
working lasers with scanning differential spreading techniques.  ...  effect of current spreading inside actively biased ridge waveguide lasers, anomalously high series resistance encountered in ridge lasers-as well as in CMOS transistors; and free-carrier measurement of  ...  Numerical 64 and experimental 63 studies were used to investigate how laser structures could be designed to reduce current spreading.  ... 
doi:10.1080/10408430590952523 fatcat:f2vi46f7nfdt3nfgtyfys7odse

Coulomb blockade effects in anodised niobium nanostructures [article]

Torsten Henning
1997 arXiv   pre-print
Samples in a single electron transistor-like geometry with two variable thickness weak links were made by combined angular evaporation of niobium and anodisation.  ...  The thesis contains a five page appendix with lithography recipes.  ...  In anodised niobium samples, we have observed this switching both in the 'old cryostat' that had no Thermocoax high frequency filtering, and in the Oxford cryostat.  ... 
arXiv:cond-mat/9710037v1 fatcat:voqi5ps365g2tgvisoxnjnrswq

RF Mixers [chapter]

2010 Radio Frequency Circuit Design  
High-pass filter networks are realized by using a cascade of series capacitors and shunt inductors. Capacitors at high frequencies have low impedance, and inductors have high impedance.  ...  A third method is the spread spectrum technique known as code division multiple access (CDMA) where a broad bandwidth is used by multiple users continuously.  ...  The input phase is Q 1 s D a C b/s 2 . The filter transfer function is F s D 1 C sCR 2 1 C sC R 1 C R 2 (a) What is the steady state phase error?  ... 
doi:10.1002/9780470768020.ch11 fatcat:t332r6j2p5epjpfnsnoal3xalq

Four-element phased-array antenna systems monolithically integrated on silicon

Taeksoo Ji, Hargsoon Yoon, K. A. Jose, Vijay K. Varadan, Vijay K. Varadan
2004 Smart Structures and Materials 2004: Smart Electronics, MEMS, BioMEMS, and Nanotechnology  
or use with microwave integrated circuits.  ...  its high phase shift capability (~30 o /dB), low leakage current level (~300nA at a bias voltage of 100V) and notably high operational reliability.  ...  These characteristics of high permittivity and polarity enable the ferroelectric materials to be extensively used in a variety of electronic applications such as dielectric capacitors for dynamic random  ... 
doi:10.1117/12.548432 fatcat:y3n573cvhvhpziih5gjupsm6ve

Analog Circuit Design in Nanoscale CMOS Technologies

Lanny L. Lewyn, Trond Ytterdal, Carsten Wulff, Kenneth Martin
2009 Proceedings of the IEEE  
Classic analog designs are being replaced by digital methods, using nanoscale digital devices, for calibrating circuits, overcoming device mismatches, and reducing bias and temperature dependence.  ...  Currently, high-frequency on-chip switching regulators (with off-chip inductors) are not often used.  ...  With a sampling capacitor of 1 fF, and parasitic capacitances on the order of 10 fF, the power dissipation due to the needed sampling capacitor will be an order of magnitude less than the power dissipation  ... 
doi:10.1109/jproc.2009.2024663 fatcat:mzxbcrpd4nht3hwayzlgibal2q
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