Title :
A 13-bit, low-power, compact ADC suitable for sensor applications
Author :
Chen, Honglei ; Wu, Dong ; Shen, Yanzhao ; Xu, Jun
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
fDate :
May 30 2010-June 2 2010
Abstract :
A 100μW, 13bit ADC used for sensor array applications is presented in this paper. The ADC employs an extended counting architecture in which the residual error from a first-order incremental ΣΔ modulator is encoded by a cyclic ADC to achieve high accuracy at a relatively high speed. Hardware reuse technique is utilized for low power consumption and small silicon area. The prototype ADC is implemented in 0.18μm CMOS technology with 1.8V supply voltage and the core area is only 0.06mm2 including control logic. The ADC shows a peak SNDR/SFDR of 65.4dB/71.9dB.
Keywords :
CMOS integrated circuits; analogue-digital conversion; counting circuits; delta modulation; power consumption; sensor arrays; CMOS technology; cyclic ADC; first order incremental delta modulator; power consumption; residual error; sensor array; size 0.18 mum; voltage 1.8 V; CMOS technology; Circuits; Clocks; Energy consumption; Hardware; Sensor arrays; Sensor systems; Signal processing; Silicon; System-on-a-chip;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537171
