In this paper, we propose the high-linear fourquadrant analog multiplier based on MOS weak-inversion region. Because the proposed multiplier is based on the translinear principle, it is insensitive to the absolute accuracy of the devices and temperature variation. Furthermore, the proposed multiplier has very high linearity by adopting the adaptive bias technique. Simulations of the multiplier demonstrate a nonlinearity of 0.88%, a THD of 1.3%, a −3dB bandwidth of 768kHz, and a power consumption of 1.12µW under the condition that VDD = 1.0V.
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