Title
28.5 A 10b 1.5GS/s pipelined-SAR ADC with background second-stage common-mode regulation and offset calibration in 14nm CMOS FinFET.
Abstract
High-speed SAR ADCs became popular with modern CMOS technologies because of their mostly digital logic, making them highly suitable for compact and power-efficient multi-GS/s time-interleaved ADCs. As many applications cannot tolerate input swings ≥1V ppd , comparator noise limits the SNDR of SAR ADCs, making gain stages necessary for higher SNDR - either as comparator pre-amplifiers or between pipelined stages. Pre-amplifiers significantly reduce the conversion speed of the ADC, but they provide maximum SNDR because linearity of the amplifier is irrelevant. An interstage amplifier for pipelining best suits mid-resolution SAR ADCs, where the required linearity is limited. Moreover, pipelining results in higher conversion speeds and power efficiency because the gain stage is used only once per conversion [1]. This work presents a pipelined-SAR ADC architecture that exceeds the conversion speed of previous pipelined and single-stage SAR ADCs. The ADC achieves 50dB SNDR and 950MS/s at 2.26mW, and 1.5GS/s at 6.92mW on an area of 0.0016mm 2 .
Year
Venue
Field
2017
ISSCC
Flight dynamics (spacecraft),Electrical efficiency,Comparator,Computer science,Linearity,Electronic engineering,Gain stage,CMOS,Successive approximation ADC,Electrical engineering,Amplifier
DocType
Citations 
PageRank 
Conference
1
0.48
References 
Authors
2
11
Name
Order
Citations
PageRank
Lukas Kull114118.63
Danny Luu2167.55
Christian Menolfi324541.54
Matthias Braendli415824.28
Pier Andrea Francese513825.33
Thomas Morf624442.54
Marcel A. Kossel717933.86
Hazar Yueksel874.15
Alessandro Cevrero910716.21
Ilter Özkaya10165.72
Thomas Toifl1127548.02