Title
A 12.4fJ-FoM 4-Bit Flash ADC Based on the StrongARM Architecture
Abstract
This work proposes an efficient 4-bit flash ADC based on the StrongARM comparator architecture. The proposed design eliminates the need for the resistive ladder by systematically modifying the sizing of the input differential pair of each comparator. As a consequence, the area and the power consumed within the ladder is eliminated. Furthermore, a Helpee StrongARM circuit is introduced which enables operation at an input voltage below the threshold voltage of the transistor. An enhanced 1-out-of-15 decoder converts the thermometer code from the StrongARM and the Helpee StrongARM comparators into a 1-out-of-n code. The proposed 4-bit flash ADC architecture, simulated in 90nm standard CMOS technology, consumes 292 μW at 1.6 GHz sampling frequency, has an ENOB of 3.88 and FoM of 12.4 fJ/conv.step.
Year
DOI
Venue
2018
10.1109/PRIME.2018.8430349
2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)
Keywords
Field
DocType
Flash ADC,Data converter,StrongARM,Helpee StrongARM,Comparator
4-bit,Comparator,Computer science,Voltage,Effective number of bits,Electronic engineering,CMOS,Flash ADC,Transistor,Electrical engineering,Threshold voltage
Conference
ISBN
Citations 
PageRank 
978-1-5386-5388-3
0
0.34
References 
Authors
8
5
Name
Order
Citations
PageRank
Abdullah S. Almansouri101.01
Abdullah Alturki200.34
Hossein Fariborzi3247.67
Khaled N. Salama434546.11
Talal Al-Attar501.35