Design of Low Power Current Memory Circuit based on Voltage Scaling

Title & Authors
Design of Low Power Current Memory Circuit based on Voltage Scaling
Yeo, Sung-Dae; Kim, Jong-Un; Cho, Tae-Il; Cho, Seung-Il; Kim, Seong-Kweon;

Abstract
A wireless communication system is required to be implemented with the low power circuits because it uses a battery having a limited energy. Therefore, the current mode circuit has been studied because it consumes constant power regardless of the frequency change. However, the clock-feedthrough problem is happened by leak of stored energy in memory operation. In this paper, we suggest the current memory circuit to minimize the clock-feedthrough problem and introduce a technique for ultra low power operation by inducing dynamic voltage scaling. The current memory circuit was designed with BSIM3 model of $\small{0.35{\mu}m}$ process and was operated in the near-threshold region. From the simulation result, the clock-feedthrough could be minimized when designing the memory MOS Width of $\small{2{\mu}m}$, the switch MOS Width of $\small{0.3{\mu}m}$ and dummy MOS Width of $\small{13{\mu}m}$ in 1MHz switching operation. The power consumption was calculated with $\small{3.7{\mu}W}$ at the supply voltage of 1.2 V, near-threshold voltage.
Keywords
Current Mode Signal Processing;Current Memory;Clock-Feedthrough;DVS;Near-Threshold;
Language
Korean
Cited by
1.
Current-mode FIR Filter 동작을 위한 OTA 회로 설계,여성대;조태일;신영철;김성권;

한국전자통신학회논문지, 2016. vol.11. 7, pp.659-664
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