Title :
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
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;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571803
