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

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

2414

Lastpage

2417

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCAS.2010.5537171

Filename

5537171