发明名称 Transconductance circuit
摘要 The present invention relates to a transconductance circuit intended to convert a differential input voltage, supplied as two signals to two inputs, IN+ and IN- respectively, into a differential output current. According to the invention, each of the two signals of said differential input voltage is supplied to each input, IN+ and IN- respectively, through a follower transistor, TF+ and TF- respectively, connected to said input, IN+ and IN- respectively, by its emitter and receiving said signal on a control electrode. Moreover, each of the two inputs, IN+ and IN- respectively, of the transconductance is connected to a respective current source, CS- and CS+ respectively, that is dynamically controlled by the other input of the transconductance, IN- and IN+ respectively, said current source, CS- and CS+ respectively, being such that the current supplies to each input, IN+ and IN- respectively, by said current source, CS- and CS+ respectively, eliminates current variations caused by voltage variations of the input voltage signal.
申请公布号 US2007139110(A1) 申请公布日期 2007.06.21
申请号 US20040575425 申请日期 2004.10.06
申请人 PROUET SEBASTIEN;MARIE HERVE 发明人 PROUET SEBASTIEN;MARIE HERVE
分类号 H03F3/45 主分类号 H03F3/45
代理机构 代理人
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