Modeling of Switched-Capacitor Delta–Sigma Modulators in SIMULINK

Zare-Hoseini, H.; Kale, I.; Shoaei, O.

doi:10.1109/tim.2005.851085

Cited by 77 publications

(41 citation statements)

References 13 publications

(33 reference statements)

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“…Nevertheless, the usage of multi-bit quantizer and DAC may cause more serious harmonics distortion [9]. DataWeighted Averaging (DWA), linearization circuit and smaller gain of first integrator are proposed to reduce the harmonics distortion.…”

Section: Proposed Architecturementioning

confidence: 99%

A high performance with low harmonic distortion interface circuit of sigma-delta accelerometer

Chen

Liu

et al. 2016

IEICE Electron. Express

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A high performance interface circuit of sigma-delta accelerometer with low harmonic distortion used many kinds of circuit processing techniques is presented in this work. Multi-bit, dynamic element matching, correlated-double-sampling and electrostatic force feedback linearization circuit are used simultaneously in order to achieve the design indicators. Because of the usage of multi-bit, the design to operational amplifier (OPA) becomes easier, and only a single-stage folded-cascode amplifier is used in the modulator, the OSR is only 64. It highly reduced the difficulty of circuit. The test results indicate that the chip area is only about 10 mm 2 and the power dissipation is 10 mW with a sampling frequency of 60 kHz. The dynamic range (DR) of the system can be lower than −130 dB, the SNR and SNDR reach to −120 dB and −110 dB respectively with a resolution about 17 bits when referred to 3g full scale DC acceleration under CMOS 0.5 µm process. The dc nonlinearity of it is 0.2%. This paper realizes an approach which can both simplify the design of the interface circuit and improve the performance of it.

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Section: Proposed Architecturementioning

confidence: 99%

A high performance with low harmonic distortion interface circuit of sigma-delta accelerometer

Chen

Liu

et al. 2016

IEICE Electron. Express

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“…Although many specifications are determined theoretically, modeling the system in Simulink is very helpful [7]. The finite DC gain of the OTA introduces gain error and leakage in the integrator.…”

Section: B Specifications Of the Modulatormentioning

confidence: 99%

“…Nonlinearity effects of the OTA are difficult to analyze [7]. But as long as the overall DC gain of the OTA including nonlinearity is higher than the desired threshold of 65dB, the performance will not degrade.…”

Section: B Specifications Of the Modulatormentioning

confidence: 99%

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Optimization of Delta-Sigma ADC for Column-Level Data Conversion in CMOS Image Sensors

Mahmoodi

Joseph

2007

2007 IEEE Instrumentation &Amp; Measurement Technology Conference IMTC 2007

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“…The second class contains the works aiming to predict or simulate the performance of different types of ADCs based on their infrastructure characteristics and features, usually in MATLAB Simulink or Spice. [2], [3], [6]- [10], [12]- [14] are some examples for this category. Generally speaking, the first category has attracted more interest than the other over the past decade.…”

Section: Introductionmentioning

confidence: 99%

Behavioral Modeling of Typical Non-Ideal Analog to Digital Converter Using MATLAB

Taheri¹,

Mohammadi

2014

TMLAI

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Analog-to-digital converters (ADC) are one the most fundamental and crucial parts of an electronic device which needs to convert analog inputs into the digital format. Nowadays, you can find some type of ADCs in almost every communication device. Consequently, simulating an ADC plays a challenging and very fundamental role while aiming to simulate real-world instruments and designed systems. Despite the fundamental significance of this task, a general simulation model for typical non-ideal ADCs have not been presented yet. In this paper, we consider the most important non-ideality parameters of a typical ADC and initiate simulation models in the Simulink environment of MATLAB, as the most versatile widely-used simulation software for engineering tasks. For this purpose, we first reconsider the non-ideality parameters of a typical ADC from general perspective, aiming to bring a unified view in hand. Afterwards, the potential models for the non-ideality parameters are initiated separately, and then, are combined together to make the whole model. By creating a MATLAB Block of the whole general-topology model at the end, and defining the non-ideality parameters as variable inputs, we simulate the behavior of a typical ADC using practical non-ideality parameters data, and compare with an ideal ADC. This additionally enables a user interface for quick input of non-ideality parameters of any practical ADC for future clients. Despite the pure generality of the model, simulation results demonstrate acceptable outcomes proving the applicability of this model in wide range of engineering simulation tasks, and an appreciable step towards higher precision general simulations of typical ADCs.

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Modeling of Switched-Capacitor Delta–Sigma Modulators in SIMULINK

Cited by 77 publications

References 13 publications

A high performance with low harmonic distortion interface circuit of sigma-delta accelerometer

A high performance with low harmonic distortion interface circuit of sigma-delta accelerometer

Optimization of Delta-Sigma ADC for Column-Level Data Conversion in CMOS Image Sensors

Behavioral Modeling of Typical Non-Ideal Analog to Digital Converter Using MATLAB

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