A Survey on Analog-to-Digital Converter Integrated Circuits for Miniaturized High Resolution Ultrasonic Imaging System

Chen, Dongdong; Cui, Xinhui; Zhang, Qidong; Li, Di; Cheng, Wenyang; Fei, Chunlong; Yang, Yanchao

doi:10.3390/mi13010114

Cited by 18 publications

(10 citation statements)

References 70 publications

(94 reference statements)

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“…Combing Equations ( 4) and ( 5), the overall power consumption is also determined by k i , N op and N ref , as shown in Equation (6).…”

Section: Power Consumption Analysismentioning

confidence: 99%

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A Calibration-Free, 16-Channel, 50-MS/s, 14-Bit, Pipelined-SAR ADC with Reference/Op-Amp Sharing and Optimized Stage Resolution Distribution

Ren

2022

Electronics

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This paper presents a calibration-free, 16-channel, 14-bit, 50-MS/s, pipelined successive approximation register (pipelined-SAR) analog-to-digital converter (ADC) for ultrasound imaging systems. A reference sharing scheme with reduced buffers is proposed to improve area-and-power efficiency, which is essential for multi-channel systems. Based on this, a three-stage, pipelined-SAR ADC architecture with reference/op-amp sharing and optimized stage resolution distribution is proposed. The prototype ADC is designed in a 0.18-μm process with peripheral circuits integrated, including low-voltage differential signaling (LVDS), bandgap, etc. It achieves a robust and calibration-free performance with 68.25-dB signal to noise and distortion ratio (SNDR) and 82.19-dB spurious-free dynamic range (SFDR), translating into a competitive figure of merit (FoM) of 0.47 pJ/conversion-step among other high-resolution ADCs used in ultrasound applications.

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“…Combing Equations ( 4) and ( 5), the overall power consumption is also determined by k i , N op and N ref , as shown in Equation (6).…”

Section: Power Consumption Analysismentioning

confidence: 99%

“…The ADC often becomes the bottleneck of the whole system [6]. It not only determines the final signal-to-noise ratio (SNR) of the images but also significantly affects the complexity of the entire circuit system.…”

Section: Introduction 1ultrasound Imaging Systemmentioning

confidence: 99%

A Calibration-Free, 16-Channel, 50-MS/s, 14-Bit, Pipelined-SAR ADC with Reference/Op-Amp Sharing and Optimized Stage Resolution Distribution

Ren

2022

Electronics

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“…This is denoted in Figure 3 by the circles on the horizontal axis. Multiple surveys have been done to evaluate the state of the art of the A/D conversion systems for Data Acquisition systems such as in [20][21][22]. A single A/D converter can only sample one channel at any given time, once per sample period.…”

Section: Synthetic Signals For Comparison and Evaluationmentioning

confidence: 99%

Simultaneous Time Sampling for Heterogenous Multichannel Data Acquisition

Alkelany

2021

International Journal of Advanced Scientific Research and Innov

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Data Acquisition devices play a vital role in our ubiquitous industrial control systems. This is due to the increasing need to gathered data to aid in automatic decision-making process. Heterogenous analog data require various configurations to be able to reconstruct input data properly. Often, a single analog to digital conversion is used per acquisition channel, but most frequently a multi-channel data acquisition device is used with a constant sampling period for all channels. It is obvious that the dedicated analog to digital converter per channel is expensive choice, especially if the converter device is of high speed. Alternatively, a single analog to digital converter is shared by multiple channels. However, sharing such analog to digital conversion device requires the use of a real-time scheduling algorithm. In this paper, we firstly present a survey of current real-time multichannel data acquisition sampling techniques. Then, we utilize synthetic signals with different frequencies to study the Simultaneous Time Sampling problem in multi-channel heterogenous data acquisition systems. This problem causes failure of the schedule, thus lead to data loss, or data corruption. Our aim is to compare the effectiveness of such scheduling techniques in addressing such problem. Then, we conclude with a recommendation for a possible solution that can reduce the failure rate of multi-channel scheduling systems that are used for a single analog to digital conversion device.

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“…In this structure, the monitoring error mainly comes from the error on the multi-channel sensing channel, the ADC error and the reference error. The accuracy of the voltage reference is the most important criterion that determines the precision of battery monitoring, and it is also an indispensable part in other precision sensors or applications [ 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

A 2.5 V, 2.56 ppm/°C Curvature-Compensated Bandgap Reference for High-Precision Monitoring Applications

Zhu

Liu

et al. 2022

Micromachines

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This work presents a high-precision high-order curvature-compensated bandgap voltage reference (BGR) for battery monitoring applications. The collector currents of bipolar junction transistor (BJT) pairs with different ratios and temperature characteristics can cause greater nonlinearities in ΔVEB. The proposed circuit additionally introduces high-order curvature compensation in the generation of ΔVEB, such that it presents high-order temperature effects complementary to VEB. Fabricated using a 0.18 µm BCD process, the proposed BGR generates a 2.5 V reference voltage with a minimum temperature coefficient of 2.65 ppm/°C in the range of −40 to 125 °C. The minimum line sensitivity is 0.023%/V when supply voltage varies from 4.5 to 5.5 V. The BGR circuit area is 382 × 270 μm2, and the BMIC area is 2.8 × 2.8 mm2.

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A Survey on Analog-to-Digital Converter Integrated Circuits for Miniaturized High Resolution Ultrasonic Imaging System

Cited by 18 publications

References 70 publications

A Calibration-Free, 16-Channel, 50-MS/s, 14-Bit, Pipelined-SAR ADC with Reference/Op-Amp Sharing and Optimized Stage Resolution Distribution

A Calibration-Free, 16-Channel, 50-MS/s, 14-Bit, Pipelined-SAR ADC with Reference/Op-Amp Sharing and Optimized Stage Resolution Distribution

Simultaneous Time Sampling for Heterogenous Multichannel Data Acquisition

A 2.5 V, 2.56 ppm/°C Curvature-Compensated Bandgap Reference for High-Precision Monitoring Applications

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