A 300-mV ΔΣ Modulator Using a Gain-Enhanced, Inverter-Based Amplifier for Medical Implant Devices
Journal of Low Power Electronics and Applications, 2016 An ultra-low-voltage low-power switched-capacitor (SC) delta-sigma (ΔΣ) modulator running at a supply voltage as low as 300 mV is presented for biomedical implant devices, e.g., cardiac pacemakers.
Ali Fazli Yeknami
doaj +1 more source
Novel switched-capacitor generalised integrator
Electronics Letters, 1985 A novel circuit arrangement is proposed for a generalised integrator using the switched-capacitor (SC) technique. This generalised integrator (which integrates with respect to a dependent variable) can easily be constructed in IC form using MOS technology. It possesses some attractive features, for instance simplicity and low cost.
A. Cichocki, R. Unbehauen
openaire +1 more source
A Low-Power Delta-Sigma Capacitance-to-Digital Converter for Capacitive Sensors
IEEE Access, 2019 This paper proposes a low-power delta-sigma capacitance-to-digital converter (CDC) for a capacitive sensor. The input of the capacitive sensor employs a zoomed-in technique with the offset capacitor to extend the input capacitance range. The proposed CDC
Rongshan Wei +3 more
doaj +1 more source
CMOS design of chaotic oscillators using state variables: a monolithic Chua's circuit [PDF]
, 1993 This paper presents design considerations for monolithic implementation of piecewise-linear (PWL) dynamic systems in CMOS technology. Starting from a review of available CMOS circuit primitives and their respective merits and drawbacks, the paper ...
Delgado Restituto, Manuel +1 more
core +1 more source
A wideband linear tunable CDTA and its application in field programmable analogue array [PDF]
, 2016 This document is the Accepted Manuscript version of the following article: Hu, Z., Wang, C., Sun, J. et al. ‘A wideband linear tunable CDTA and its application in field programmable analogue array’, Analog Integrated Circuits and Signal Processing, Vol ...
A Laknaur +34 more
core +2 more sources
An improved switched-capacitor integrator
Electronics Letters, 1978 A novel switched-capacitor integrator is described which results in the mapping of the analogue frequency axis directly on the unit circle of the z-plane. The circuit requires one extra capacitor and additional switches. It makes the design much easier and doubles the effective sampling rate.
G.C. Temes, I.A. Young
openaire +1 more source
A Low-power CMOS 2-PPM Demodulator for Energy Detection IR-UWB Receivers [PDF]
, 2007 This paper presents an integrated 2-PPM CMOS demodulator for non-coherent energy detection receivers which inherently provides analog-to-digital conversion.
Casu, Mario Roberto +3 more
core +1 more source
Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design [PDF]
, 1994 This communication reports a new modeling of opamp-induced harmonic distortion in SC ΣΔ modulators, which is aimed to optimum design of this kind of circuit for high-performance applications.
Huertas Díaz, José Luis +3 more
core +1 more source
Novel stray-insensitive switched-capacitor integrator
Electronics Letters, 1980 A stray-insensitive switched-capacitor integrator is introduced which enables the design of leapfrog filters suitable for high clock/signal frequency ratios without causing large capacitor spreads. A design example is given.
D.C. von Grünigen +2 more
openaire +1 more source
A 13-bit, 2.2-MS/s, 55-mW multibit cascade ΣΔ modulator in CMOS 0.7-μm single-poly technology [PDF]
, 1999 This paper presents a CMOS 0.7-μm ΣΔ modulator IC that achieves 13-bit dynamic range at 2.2 MS/s with an oversampling ratio of 16. It uses fully differential switched-capacitor circuits with a clock frequency of 35.2 MHz, and has a power consumption of ...
Medeiro Hidalgo, Fernando +2 more
core +1 more source