CMOS Continuous-Time Integrator with Capacitance Multiplier

被引：0
|
作者：
Sato, Hiroki [1 ]
Takagi, Shigetaka [1 ]
机构：
[1] Tokyo Inst Technol, Sch Engn, Tokyo, Japan
来源：
2023 21ST IEEE INTERREGIONAL NEWCAS CONFERENCE, NEWCAS | 2023年
关键词：
integrator; CMOS analog circuit; operational amplifier; operational transconductance amplifier; local-feedback amplifier; continuous-time signal processing;
D O I：
10.1109/NEWCAS57931.2023.10198049
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 CMOS continuous-time integrator using a capacitance multiplier for a smaller chip area. It is based on a modified local-feedback amplifier and mitigates a power dissipation issue in the impedance multiplication capability. Compared to integrators based on an operational amplifier or a transconductor, the proposed circuit has both good linearity and area efficiency under the condition of the lower supply voltage. The simulation results show 50% reduction of the capacitance and 33% of power dissipation for the same time constant.
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页数：5
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