共 12 条
[11]
1990, AD7712
[12]
1990, LINEAR TECHNOLOGY DA
A MONOLITHIC CMOS 20-B ANALOG-TO-DIGITAL CONVERTER
被引：9
作者：
LEOPOLD, HA
WINKLER, G
OLEARY, P
ILZER, K
JERNEJ, J
机构：
[1] ELECTR SENSOR INTERFACES GRP,JOANNEUM RES,A-8010 GRAZ,AUSTRIA
[2] AUSTRIA MIKRO SYST INT GMBH,A-8141 UNTERPREMSTATTEN,AUSTRIA
关键词：
CMOS N-Well Process - Monolithic CMOS A/D Converter - Oversampling Feedback Architecture - Rectangular Window Filter;
D O I：
10.1109/4.92009
中图分类号：
TM [电工技术];
TN [电子技术、通信技术];
学科分类号：
0808 ;
0809 ;
摘要：
This paper presents a monolithic 20-b analog-to-digital converter (ADC) based on an oversampling feedback architecture [1], [2]. The converter consists of a time-continuous integrator at the input, a pulsewidth modulator in the forward branch of the loop (corresponding to a 10-b ADC), and a 1-b DAC to generate the feedback voltage. The digital evaluation is carried out with a uniform-weighted rectangular window filter. The circuit is implemented in a standard 2-mu-m CMOS n-well process and requires 14 mm2 of silicon, including the pads. Measurement results are presented that demonstrate the feasibility of this architecture for 20-b accuracy. The complete circuit has a power consumption of 6.7 mW.
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页码：910 / 916
页数：7
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