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Publication . Article . 2019

Energy Efficient Flash ADC with PVT Variability Compensation through Advanced Body Biasing

Mroszczyk, Przemyslaw; Goodacre, John; Pavlidis, Vasilis F.;
Open Access   English  
Published: 09 Jan 2019
Country: United Kingdom
Abstract
This paper presents the design of an energy efficient Flash analogue-to-digital converter (ADC) with Threshold Inverter Quantiser (TIQ) comparator employing advanced body biasing to compensate for the effects of parameter variability. The proposed calibration scheme is verified against process, voltage, and temperature (PVT) corners as well as random parameter variability (mismatch). Two proof-of-concept ADCs of 4- and 6-bit precision are designed and verified in simulations in 28 nm Fully Depleted Silicon on Insulator (FDSOI) technology. The 6-bit converter achieves sampling rate of 3 GS/s, energy efficiency per conversion step below 20 fJ, and precision of 5.2 effective number of bits (ENOB). The proposed ADC architecture is dedicated to high-speed and low-precision applications, such as communication transceivers and data acquisition systems where area and energy efficiency are paramount.
Subjects by Vocabulary

ACM Computing Classification System: Hardware_INTEGRATEDCIRCUITS

Microsoft Academic Graph classification: Effective number of bits Electronic engineering Compensation (engineering) Silicon on insulator Voltage Efficient energy use Computer science Flash ADC Comparator Inverter

Subjects

Electrical and Electronic Engineering

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Funded by
EC| ExaNoDe
Project
ExaNoDe
European Exascale Processor Memory Node Design
  • Funder: European Commission (EC)
  • Project Code: 671578
  • Funding stream: H2020 | RIA
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