Shintaro Nakamura

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A local feedback transconductor is known as a linear transconductor. However, the linearity is deteriorated because of mobility degradation and operating in weak inversion region. In this paper, a new linear MOS transconductor based on a local feedback transconductor is proposed. The proposed circuit employs a square current source circuit and MOSFETs(More)
A bias-offset transconductor is known as a linear MOS transconductor. The transconductor requires some peripheral circuits, which are a floating voltage source and a biasing current source. This paper presents a design of a linear transconductor/multiplier for low-voltage and low-power operation with two techniques. One is a method to realize high-accuracy(More)
A local-feedback transconductor is known as a linear transconductor. For low current operation, transistors operate in weak inversion, and the voltage-current characteristic is not expressed as square-law characteristic but expressed as an exponential function. Then, the linearity is deteriorated. In this paper, a new linear MOS transconductor based on(More)
A local feedback transconductor is known as a linear transconductor. It is necessary to employ a single-end converter circuit in order to realize linear characteristics. However, if the transconductor is applied to a gyrator active filter, two differential output terminals are needed. Then, the transfer characteristics of the active filter are not linear.(More)
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