Title
A 12-bit fully differential 2MS/s successive approximation analog-to-digital converter with reduced power consumption
Abstract
This paper presents a 12-bit fully differential successive approximation register analog-to-digital converter (ADC) operating at 2MS/s and designed for an optoelectronic range sensor as a system-on-chip device. The realized ADC uses several improvements to lower the power consumption to 10mW at 5V power supply and, at the same time, to increase the conversion rate up to the limits offered by the used 0.6μm process. The proposed interpolation network consists of partially segmented R-2R resistors ladder instead of the commonly used serial array to achieve lower power consumption as well as smaller active area. The fabricated chip occupies an active area of ~1.1mm2 excluding pads. Measurement data, resulting in an effective number of bits of 11.55 at 1MS/s and 11.2 at 2MS/s, conform to simulations. The maximum measured differential non-linearity and integral non-linearity accounts to +0.3/-0.6LSB and ±0.7LSB respectively.
Year
DOI
Venue
2010
10.1109/DDECS.2010.5491744
Design and Diagnostics of Electronic Circuits and Systems
Keywords
Field
DocType
analogue-digital conversion,interpolation,low-power electronics,optoelectronic devices,power consumption,resistors,system-on-chip,ADC,R-2R resistors ladder,differential nonlinearity,fabricated chip,fully differential successive approximation analog-to-digital converter,fully differential successive approximation register,integral nonlinearity,interpolation network,lower power consumption,optoelectronic range sensor,reduced power consumption,serial array,system-on-chip device,word length 12 bit
Integral nonlinearity,System on a chip,Differential nonlinearity,Computer science,Effective number of bits,Electronic engineering,Analog-to-digital converter,Resistor,Energy consumption,Electrical engineering,Low-power electronics
Conference
ISSN
ISBN
Citations 
2334-3133
978-1-4244-6612-2
1
PageRank 
References 
Authors
0.38
7
3
Name
Order
Citations
PageRank
Milos Davidovic110.38
Gerald Zach210.38
H. Zimmermann35715.95