Proceedings Article10.1109/ISCAS.1990.112599
Offset-compensated switched-capacitor integrators
Wing-Hung Ki,Gabor C. Temes +1 more
- 01 May 1990
- pp 2829-2832
45
TL;DR: In this paper, the performance of several switched-capacitor (SC) integrators is compared and a description representation is introduced, and offset-compensated circuits which reduce the capacitance spread in very large time-constant SC integrators are presented.
read more
Abstract: The performance of several switched-capacitor (SC) integrators is compared, and a description representation is introduced. Offset-compensated circuits which reduce the capacitance spread in very large time-constant SC integrators are presented. The theoretical equations are derived for all SC circuits and are then confirmed by simulations. >
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization
Christian Enz,Gabor C. Temes +1 more
- 01 Nov 1996
TL;DR: In this paper, some old and new circuit techniques are described for the compensation of the amplifier's most important nonideal effects including the noise (mainly thermal and 1/f noise), the input-referred dc offset voltage as well as the finite gain.
2K
A 0.5-mW passive telemetry IC for biomedical applications
Qiuting Huang,M. Oberle +1 more
TL;DR: In this paper, a low-power, single-chip, one-channel, fully implantable microtransponder system for low-frequency biomedical sensor applications is described, which is powered by an external RF source at 27/40 MHz.
211
A high-resolution multibit Sigma Delta ADC with digital correction and relaxed amplifier requirements
M. Sarhang-Nejad,Gabor C. Temes +1 more
TL;DR: A second-order multibit Sigma Delta (sigma-delta) analog-to-digital converter (ADC) with a 4-b internal quantizer is described, which uses a simple and fast digital correction scheme.
153
•Journal Article
High-order multibit modulators and pseudo data-weighted-averaging in low-oversampling ΔΣ ADCs for broad-band applications
Anas A. Hamoui,Kenneth W. Martin +1 more
TL;DR: A simple technique, called pseudo DWA, is proposed to solve the DWA tone problem without sacrificing the signal-to-noise ratio and requires only minimal additional digital hardware.
116
Analog VLSI implementations of auditory wavelet transforms using switched-capacitor circuits
TL;DR: extremely area-efficient designs are presented to implement very large time-constant filters used to process speech and other acoustic signals to reduce significantly the capacitance spread ratios needed in the filter banks.
References
Switched-capacitor integrator with reduced sensitivity to amplifier gain
TL;DR: In this paper, a new switched-capacitor integrator with low sensitivity to finite amplifier gain is described, requiring very little extra chip area as compared to the uncompensated integrator.
100
Improved offset-compensation schemes for switched-capacitor circuits
Gabor C. Temes,K. Haug +1 more
TL;DR: In this article, a switch-capacitor stage which is free from the effects of op-amp DC offset voltage is described and the op-amps used in the stage need not slew between the desired output voltage and the offset voltage as in previously described offset-free circuits.
84
Strays-insensitive switched-capacitor filters based on bilinear Z-transform
Kenneth W. Martin,Adel S. Sedra +1 more
TL;DR: Biquadratic circuits are introduced which enable the exact design of switched-capacitor filters using the bilinear z-transform, and meet their specifications up to and including one-half the sampling frequency.
84
Switched-capacitor integrators with low finite-gain sensitivity
TL;DR: In this article, the sensitivity of integrator SC integrator stages to finite amplifier gain effects is compared with respect to their sensitivities to finite amplifier gain effects, and simple single-stage amplifiers may be used in such circuits even in highly selective filtering applications.
74
An area-efficient approach to the design of very-large time constants in switched-capacitor integrators
Willy Sansen,P.M. Van Peteghem +1 more
TL;DR: Calculations and measurements show that in the T-cell integrator, capacitive area is conveniently traded off against amplifier specifications as open-loop and slew rate; power consumption is not necessarily compromised by these specifications.
70