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Dynamic range

About: Dynamic range is a research topic. Over the lifetime, 7576 publications have been published within this topic receiving 101739 citations. The topic is also known as: DNR & DR.


Papers
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Journal ArticleDOI
03 Feb 2018-Sensors
TL;DR: A model to estimate the influence of phase noise in the performance of an oscillator-based system by reflecting the phase noise to the oscillator input is proposed, based on periodic steady-state analysis tools to predict the SNR of the oscillators.
Abstract: This paper analyzes the influence of phase noise and distortion on the performance of oscillator-based sensor data acquisition systems. Circuit noise inherent to the oscillator circuit manifests as phase noise and limits the SNR. Moreover, oscillator nonlinearity generates distortion for large input signals. Phase noise analysis of oscillators is well known in the literature, but the relationship between phase noise and the SNR of an oscillator-based sensor is not straightforward. This paper proposes a model to estimate the influence of phase noise in the performance of an oscillator-based system by reflecting the phase noise to the oscillator input. The proposed model is based on periodic steady-state analysis tools to predict the SNR of the oscillator. The accuracy of this model has been validated by both simulation and experiment in a 130 nm CMOS prototype. We also propose a method to estimate the SNDR and the dynamic range of an oscillator-based readout circuit that improves by more than one order of magnitude the simulation time compared to standard time domain simulations. This speed up enables the optimization and verification of this kind of systems with iterative algorithms.

31 citations

Journal ArticleDOI
TL;DR: It is shown that the required current switch does not deteriorate the sensitivity of the receiver and the dynamic range of current amplifiers can be extended considerably by passing large input currents directly to the output of the amplifier.
Abstract: The front end of optical transmission systems usually consists of a low-noise, wide-band, negative-feedback transimpedance or current amplifier. The dynamic range of current amplifiers can be extended considerably by passing large input currents directly to the output of the amplifier. It is shown that the required current switch does not deteriorate the sensitivity of the receiver. A complete front end, using an external p-i-n photodiode, is integrated in a 2.5-GHz bipolar technology. The receiver has a dynamic range (DR) of 73 dB in a bandwidth of 220 MHz and consumes a supply current of 1.5 mA. >

31 citations

Journal ArticleDOI
TL;DR: A high-speed asynchronous SAR ADC that dynamically updates the references of a continuous-time delta–sigma modulator (CTDSM) for audio applications that achieves a Schreier figure of merit (FoM) of 183.6 dB.
Abstract: This article presents a continuous-time zoom analog to digital converter (ADC) for audio applications. It employs a high-speed asynchronous SAR ADC that dynamically updates the references of a continuous-time delta–sigma modulator (CTDSM). Compared to previous switched-capacitor (SC) zoom ADCs, its input impedance is essentially resistive, which relaxes the power dissipation of its reference and input buffers. Fabricated in a 160-nm CMOS process, the ADC occupies 0.27 mm2 and achieves 108.1-dB peak SNR, 106.4-dB peak signal to noise and distortion ratio (SNDR), and 108.5-dB dynamic range in a 20-kHz bandwidth while consuming 618 $\mu \text{W}$ . This results in a Schreier figure of merit (FoM) of 183.6 dB.

31 citations

Journal ArticleDOI
TL;DR: In this article, the authors demonstrate that the dynamic range of a single monolithic laser transducer covers at least 9 decades in which the output frequency is strictly proportional to the input force magnitude.

31 citations

Patent
11 Sep 2009
TL;DR: In this paper, a signal processing device capable of obtaining a desired compression effect even with an audio signal having a small input level, and inhibiting an output level from going beyond a maximum value without having acoustic distortion to stand out is presented.
Abstract: A signal processing device capable of obtaining a desired compression effect even with an audio signal having a small input level, and inhibiting an output level from going beyond a maximum value without having acoustic distortion to stand out The signal processing device comprises a frequency band division circuit (3) for dividing an audio signal into a plurality of frequency bands, a compression means for compressing, by each of the frequency bands, a dynamic range of each of signal components resulted from the division by the frequency band division circuit (3), a frequency band synthesizing circuit (6) for synthesizing each of the signal components resulted from the compression by the compression means, and a clip circuit (7) for converting an amplitude level of an audio signal resulted from the synthesis by the frequency band synthesizing circuit (6) to a maximum value when the amplitude level is beyond the maximum value, and outputting it The compression means comprises AGC circuits (4) for amplifying, with a given gain, the signal components resulted from the division by the frequency band division circuit (3) as well as adjusting the gain according to an input power, and compress circuits (5) for compressing the dynamic ranges of the signal components resulted from the process by the AGC circuits (4)

31 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023176
2022383
2021189
2020265
2019325
2018334