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Low-Power CMOS CNN Cell and its Application to an Oscillatory CNN
Hisashi Tanaka,Koichi Tanno,Hiroki Tamura,Kenji Murao 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, we propose a low-power operational transconductance amplifier (OTA) for low-power CMOS cellular neural networks (CNN) cell. The OTA use MOSFETs operating in the weak inversion region. The transconductance gm can be changed by changing the external bias voltage. The proposed OTA is verified by HSPICE simulations with the 0.18 ㎛ standard CMOS device parameters. From the results, the power consumption is less than 3.5 ㎼ with 1.2 V power supply. As an application of the proposed OTA, an oscillatory CNN circuit using two CNN cells with the proposed OTA is presented.