Title :
Design of analog front end for mobile fuel gauge applications
Author :
Chulkyu Park ; Hyojae Kim ; Jongkeun Hwang ; Kichang Jang ; Yeongik Yoo ; Joongho Choi
Author_Institution :
Univ. of Seoul, Seoul, South Korea
Abstract :
A high-resolution second-order integrating sigma-delta analog-to-digital converter (ADC) using double-sampled integrators is presented whitch performs two times faster sampling than conventional modulator. The modulator has been designed in a 0.18-um CMOS technology. It acheives a signal-to-noise and distortion ratio (SNDR) of 93.03 dB at a conversion rate of 64 sample/s. Power dissipation is 36μW for a single supply voltage of 2.0V. Active area of prototype ADC is 0.396μm2.
Keywords :
CMOS digital integrated circuits; gauges; sigma-delta modulation; ADC; CMOS technology; SNDR; analog front end design; double-sampled integrators; high-resolution second-order integrating sigma-delta analog-to-digital converter; mobile fuel gauge applications; modulator; power 36 muW; signal-to-noise and distortion ratio; size 0.18 mum; voltage 2.0 V; CMOS integrated circuits; CMOS technology; Clocks; Generators; Switches; Battery Management IC(BMIC); Double-Sampled Integrator; Integrating Sigma-Delta ADC; Single-Sampled Integrator;
Conference_Titel :
SoC Design Conference (ISOCC), 2014 International
DOI :
10.1109/ISOCC.2014.7087678
