A current mode 6-bit self-clocked tracking ADC with adaptive clock frequency for DC-DC converters

Author

Yan Huang ; Schleifer, Horst ; Killat, Dirk

Author_Institution

Microelectron. Dept., Brandenburg Univ. of Technol., Cottbus, Germany

fYear

2013

fDate

19-23 May 2013

Firstpage

145

Lastpage

148

Abstract

A 6-bit self-clocked tracking ADC for the application in DC-DC converters is presented. Depending on the characteristics of the input signal, the adaptive control mechanism automatically increases or decreases the self-clocked frequency to match the tracking and energy efficiency. The ADC described in this paper has a high conversion rate of up to 50 MS/s with 2.6 pJ/conversion-step. The prototype ADC occupies a very small chip area of 400×200 μm² on a 130 nm 6M1P technology. Without using costly amplifiers, the maximum power dissipation is 84 μW at a supply voltage of 1.4 V when operated at 50 MS/s.

Keywords

DC-DC power convertors; adaptive control; analogue-digital conversion; clocks; energy conservation; 6M1P technology; DC-DC converters; adaptive clock frequency; adaptive control mechanism; amplifiers; current mode self-clocked tracking ADC; energy efficiency; high conversion rate; power dissipation; size 130 nm; voltage 1.4 V; word length 6 bit; CMOS integrated circuits; Clocks; Delays; Frequency conversion; Resistors; Solid state circuits; Synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2013 IEEE International Symposium on

Conference_Location

Beijing

ISSN

0271-4302

Print_ISBN

978-1-4673-5760-9

Type

conf

DOI

10.1109/ISCAS.2013.6571803

Filename

6571803