Design and implementation of reliable flash ADC for microwave applications. (September 2018)

• Record Type: Journal Article
• Authors: Prathiba, G.; Santhi, M.; Ahilan, A.
• Is Part Of: Microelectronics and reliability. Volume 88/90(2018)
• Page Start: 91
• Page End: 97
• Publication Date: 2018-09
• Subjects: Multiplexer pass gate -- ADC -- VLSI -- RELIABILITY -- ENCODER -- FLASH; Electronic apparatus and appliances -- Reliability -- Periodicals; Miniature electronic equipment -- Periodicals; Appareils électroniques -- Fiabilité -- Périodiques; Équipement électronique miniaturisé -- Périodiques; Electronic apparatus and appliances -- Reliability; Miniature electronic equipment; Periodicals; 621.3815
• DOI: 10.1016/j.microrel.2018.07.095
• Languages: English
• ISSNs: 0026-2714

Abstract

Abstract: Analog to Digital Converter (ADC) is a necessary component of mixed signal designs. It converts the analog signal to the digital signal so that it is used as a bridge. This paper proposes R-Flash ADC (Reliable Flash ADC) which combines an area efficient multiplexer pass gate (MPG) encoding technique and low power ITIQ (Improved Threshold Inverter Quantization) comparator. The proposed Flash ADC is implemented using tanner EDA with 125 nm technology. R-Flash ADC reduces the number of transistors by 39% and reduces the power consumption by 59% with high resolution quality when compared to Mux TIQ ADC. The reliability analysis shows that the proposed R-Flash ADC has reliability of 95% and it overcomes the existing techniques as well. Highlights: An area efficient MPG encoding technique and low power ITIQ comparator-based R-Flash ADC is proposed. The number of transistors in MPG encoder is reduced to 77.08%, 65.97%, 57.69% and 57.14% when compared to Wallace tree encoder, heterogeneous encoder, fat tree encoder and Mux based encoder. MPG encoder reduces the power consumption by 31% and 66% compared with Fat tree encoder and mux-based encoder. ITIQ comparator reduces the power consumption. The proposed R-Flash ADC corrects 4-bit bubble errors and gives the reliability as 95%.