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4,966
Comparator-Based Switched-Capacitor Delta-Sigma Modulation
"... In order to eliminate the use of operational amplifiers (opamps) in sampled-data systems and thus avoid several delicate tradeoffs in-volved with their design, a new class of switched-capacitor circuits based on comparators was reported. The novelty of this comparator-based switched-capacitor (CBSC) ..."
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In order to eliminate the use of operational amplifiers (opamps) in sampled-data systems and thus avoid several delicate tradeoffs in-volved with their design, a new class of switched-capacitor circuits based on comparators was reported. The novelty of this comparator-based switched-capacitor (CBSC
A Continuous-Time Delta-Sigma Modulator for RF Subsampling Receivers
"... Abstract—We propose a new continuous-time (CT) delta-sigma modulator (DSM) to be utilized in radio-frequency (RF) subsampling receivers for analog-to-digital conversion. Subsampling DSMs employ sub-Nyquist sampling with respect to the input signal frequency and oversampling with respect to the signa ..."
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Cited by 1 (0 self)
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Abstract—We propose a new continuous-time (CT) delta-sigma modulator (DSM) to be utilized in radio-frequency (RF) subsampling receivers for analog-to-digital conversion. Subsampling DSMs employ sub-Nyquist sampling with respect to the input signal frequency and oversampling with respect
Behavioral modeling of switched-capacitor sigma delta modulators
- IEEE Trans. Circuits Syst. II, Analog Digit. Signal Process
, 2003
"... Abstract—This paper presents a complete set of blocks imple-mented in the popular MATLAB SIMULINK environment, which allows designers to perform time-domain behavioral simulations of switched-capacitor (SC) sigma–delta () modulators. The proposed set of blocks takes into account most of the SC modu ..."
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Cited by 34 (11 self)
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Abstract—This paper presents a complete set of blocks imple-mented in the popular MATLAB SIMULINK environment, which allows designers to perform time-domain behavioral simulations of switched-capacitor (SC) sigma–delta () modulators. The proposed set of blocks takes into account most of the SC
A Continuous-Time Delta-Sigma Modulator Using Feedback Resistors
"... A third-order continuous-time delta–sigma comprised of Active-RC integrator and Gm-C integrator is presented. For the consideration of power, linearity and performance, the first integrator uses active-RC OpAmp and the others use Gm-C. To reduce the clock jitter sensitivity, we choose nonreturn-to-z ..."
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. The power consumption of the continuous-time delta-sigma modulator itself is 13.7 mW from the 1.8-V supply. Index Term Ё continuous-time, delta-sigma, modulator, Gm-C
Improved Design Techniques For Low-Voltage Low-Power Switched-Capacitor Delta-Sigma Modulators
, 1997
"... Abstract approved: ..."
A multibit delta-sigma audio DAC with 120 dB dynamic range
- IEEE J. Solid-State Circuits
, 2000
"... (DAC) achieves 120-dB A-weighted dynamic range in the 20-kHz band, and consumes 310 mW with a 5-V power supply. A third-order five-bit 16 architecture optimized for high-end consumer audio has been developed and used. A switched-capacitor (SC) DAC combined with infinite-impulse response (IIR) and fi ..."
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Cited by 16 (2 self)
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required for DVD-audio playback. Index Terms—Delta–sigma modulation, digital–analog conversion, operational amplifiers, switched-capacitor circuits.
Continuous-Time Sigma-Delta ADCs
, 2008
"... (A/D) conversion technology shatters the conventional wisdom that pipeline analog-to-digital converters (ADCs) are the only conversion technique available for high dynamic performance, sub-100 MSPS (mega-samples per second) applications. Besides providing more power-efficient operation, CT∑Δ technol ..."
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or traditional discrete-time (DT) ∑Δ (DT∑Δ) ADCs. • An essentially alias-free Nyquist band that is made available by exploiting inherent over-sampling, an internal
A 32-mW 320MHz continuous-time complex delta-sigma ADC for multimode wireless-LAN receivers
- IEEE Journal of Solid-State Circuits, Volume 41, Issue
, 2006
"... Abstract—We present an experimental continuous-time complex delta-sigma multi-bit modulator, implemented in standard 0.25- m CMOS technology and meeting all major requirements for application in IEEE 802.11a/b/g wireless LAN receivers. The clock frequency is 320 MHz, producing an oversampling ratio ..."
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Cited by 2 (0 self)
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Abstract—We present an experimental continuous-time complex delta-sigma multi-bit modulator, implemented in standard 0.25- m CMOS technology and meeting all major requirements for application in IEEE 802.11a/b/g wireless LAN receivers. The clock frequency is 320 MHz, producing an oversampling ratio
Delta-Sigma Audio ADC
"... audio ADC is presented. A new method using a combination of a switched-RC technique and a floating switched-capacitor double-sampling configuration enabled low-voltage operation without clock boosting or bootstrapping. A three-level quantizer with simple dynamic element matching was used to improve ..."
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audio ADC is presented. A new method using a combination of a switched-RC technique and a floating switched-capacitor double-sampling configuration enabled low-voltage operation without clock boosting or bootstrapping. A three-level quantizer with simple dynamic element matching was used to improve
Results 1 - 10
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4,966
