A 43 mW single-channel 4GS/s 4-bit flash ADC in 0.18 #x003BC;m CMOS

TitleA 43 mW single-channel 4GS/s 4-bit flash ADC in 0.18 #x003BC;m CMOS
Publication TypeConference Paper
Year of Publication2007
AuthorsSheikhaei, S., S. Mirabbasi, and A. Ivanov
Conference NameCustom Integrated Circuits Conference, 2007. CICC '07. IEEE
Pagination333 -336
Date Publishedsep.
Keywordsanalog comparators, analogue-digital conversion, CMOS, CMOS integrated circuits, comparators (circuits), current-mode logic, digital encoder, encoder logic functions, flash analog-to-digital converter, low-power electronics, m, power 43 mW, size 0.18 #x003BC, voltage 1.8 V, wiring delay, word length 4 bit
Abstract

A low-power small-area single-channel 4GS/s 4-bit flash ADC in 0.18 #x003BC;m CMOS is presented. The entire ADC is implemented using CML blocks. To enhance the speed, both analog (comparators) and digital (encoder) parts of the ADC are fully pipelined. Furthermore, a reformulation for the encoder logic functions is introduced to reduce the wiring delay in the layout. The ADC achieves a figure of merit of 2.14 pJ/conversion-step. The ADC area including the resistor ladder is 0.06 mm2 and the power consumption is 43 mW when supplied with 1.8 V.

URLhttp://dx.doi.org/10.1109/CICC.2007.4405746
DOI10.1109/CICC.2007.4405746

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