A 20mW 200MHz CMOS continuous-time sigma-delta modulator with 5MHz signal bandwidth and 12 bits of resolution

Yi-ran Li, Jian-qiu Chen, Jun Xu, Junyan Ren
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Abstract

A continuous-time sigma-delta modulator with 12 bits of resolution over a signal bandwidth of 5 MHz is presented. The simulation results show that it consumes 20 mW from a 1.8 V power supply, utilizing SMIC 0.18-um CMOS process.
20mW 200MHz CMOS连续时间sigma-delta调制器,信号带宽5MHz,分辨率12位
提出了一种分辨率为12位,信号带宽为5mhz的连续时间σ - δ调制器。仿真结果表明,采用中芯国际0.18 um CMOS工艺,在1.8 V电源下功耗为20 mW。
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