Title :
A Low Power 6-bit Flash ADC With Reference Voltage and Common-Mode Calibration
Author :
Chen, Chun-Ying ; Le, Michael Q. ; Kim, Kwang Young
Author_Institution :
Broadcom Corp., Irvine, CA
fDate :
4/1/2009 12:00:00 AM
Abstract :
In this paper, a low power 6-bit ADC that uses reference voltage and common-mode calibration is presented. A method for adjusting the differential and common-mode reference voltages used by the ADC to improve its linearity is described. Power dissipation is reduced by using small device sizes in the ADC and relying on calibration to cancel the large non-ideal offsets due to device mismatches. The ADC occupies 0.13 mm2 in 65 nm CMOS and dissipates 12 mW at a sample rate of 800 MS/s from a 1.2 V supply.
Keywords :
CMOS integrated circuits; analogue-digital conversion; calibration; mixed analogue-digital integrated circuits; CMOS; analog-digital conversion; common-mode calibration; device mismatches; low power 6-bit flash ADC; power 12 mW; power dissipation; reference voltage; size 65 nm; voltage 1.2 V; Analog integrated circuits; Calibration; Linearity; Power dissipation; Preamplifiers; Sampling methods; Voltage; Analog-to-digital (A/D) conversion; calibration; mixed analog–digital integrated circuits; offset cancellation;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2014701
