DIFFERENTIAL AMPLIFIER CIRCUIT
    2.
    发明专利

    公开(公告)号:JPH04229708A

    公开(公告)日:1992-08-19

    申请号:JP6103691

    申请日:1991-03-04

    Applicant: IBM

    Abstract: PURPOSE: To provide a reception circuit which has a high-grade common mode removal function and is operated in wide signal voltage circumstances. CONSTITUTION: This differential amplifier circuit consists of two voltage circuit networks 15 and 16 of the same circuit constitution, which are connected between differential voltage input nodes 11 and 12 and are connected to common differential current output nodes 13 and 14 and a common bias circuit 19 and generates an output current proportional to a differential input voltage independently of a common mode input voltage. This circuit acts as a transmission line reception circuit which operates in wide input signal voltage circumstances and has the high-grade common mode removal function, which can generates a true input and a complementary input so that signal response is additive and common mode response is subtractive. This circuit converts an input voltage into an input current and separates a detection circuit from breakdown voltages of individual components of the circuit and a common mode input voltage, which can be higher than the power supplied to the detection circuit.

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