SCHALTUNGSANORDNUNG FÜR EINEN INTEGRIERTEN AUSGANGSVERSTÄRKER
    4.
    发明公开
    SCHALTUNGSANORDNUNG FÜR EINEN INTEGRIERTEN AUSGANGSVERSTÄRKER 失效
    电路为一体的综合输出放大器。

    公开(公告)号:EP0676099A1

    公开(公告)日:1995-10-11

    申请号:EP94900107.0

    申请日:1993-11-06

    IPC分类号: H03F1 H03F3 H04R25

    摘要: The invention relates to a circuit arrangement for an integrated output amplifier (1) with two constant current sources (2, 3), a voltage amplifier with two inputs (5, 6) and two outputs (7, 8) and two output transistors (Q1, Q2) coupled thereto and two feedback networks (9, 10) producing negative feedback between the output transistors and the input transistors of the voltage amplifier (4) allocated thereto. The first two feedback networks (9, 10) are connected between the collectors of the output transistors (Q1, Q2) and the base electrodes of the appropriate input transistors of the voltage amplifier (4). In addition there is a third feedback network (11) coupled on the input side to the base electrode of the output transistors and on the output side, via a transistor (Q3) acting as a current sink, to the input of a current distribution network (16) having a signal input (17). The current distribution network (16) has two parallel branches (18, 19) between which the current flowing through this network, controlled by the signal at the signal input (17) can be split, the branches (18 or 19) of the current distribution network (16) being connected on the one hand to the constant current sources (2 or 3) and on the other to the inputs of the voltage amplifier (4).

    Single-ended to differential buffer amplifier
    7.
    发明公开
    Single-ended to differential buffer amplifier 审中-公开
    Eintakt- zu GegentaktPufferverstärker

    公开(公告)号:EP1852972A1

    公开(公告)日:2007-11-07

    申请号:EP06009071.9

    申请日:2006-05-02

    IPC分类号: H03F3/343

    摘要: The invention relates to an input buffer amplifier 1 suitable for a system on chip device. The input buffer amplifier 1 comprises a single ended input and a differential output. The input terminal is connected to a first differential stage 2 comprising two transistors T 1 , T 2 and to a second differential stage 3 comprising two transistors T 3 , T 4 . The first and second differential stages 2, 3 are further connected to a first and second load, for example current mirrors 10, 20, being connected so as to provide a differential output at the output terminals OUT P , OUT N .

    摘要翻译: 本发明涉及一种适用于片上系统的输入缓冲放大器1。 输入缓冲放大器1包括单端输入和差分输出。 输入端子连接到包括两个晶体管T 1,T 2的第一差分级2和包括两个晶体管T 3,T 4的第二差分级3。 第一差分级和第二差分级2,3进一步连接到第一和第二负载,例如电流镜10,20,以便在输出端OUT,OUT N处提供差分输出。

    SCHALTUNGSANORDNUNG FÜR EINEN INTEGRIERTEN AUSGANGSVERSTÄRKER
    8.
    发明授权
    SCHALTUNGSANORDNUNG FÜR EINEN INTEGRIERTEN AUSGANGSVERSTÄRKER 失效
    电路为一体的综合输出放大器

    公开(公告)号:EP0676099B1

    公开(公告)日:1997-06-18

    申请号:EP94900107.7

    申请日:1993-11-06

    IPC分类号: H03F3/45 H03F1/32

    摘要: The invention relates to a circuit arrangement for an integrated output amplifier (1) with two constant current sources (2, 3), a voltage amplifier with two inputs (5, 6) and two outputs (7, 8) and two output transistors (Q1, Q2) coupled thereto and two feedback networks (9, 10) producing negative feedback between the output transistors and the input transistors of the voltage amplifier (4) allocated thereto. The first two feedback networks (9, 10) are connected between the collectors of the output transistors (Q1, Q2) and the base electrodes of the appropriate input transistors of the voltage amplifier (4). In addition there is a third feedback network (11) coupled on the input side to the base electrode of the output transistors and on the output side, via a transistor (Q3) acting as a current sink, to the input of a current distribution network (16) having a signal input (17). The current distribution network (16) has two parallel branches (18, 19) between which the current flowing through this network, controlled by the signal at the signal input (17) can be split, the branches (18 or 19) of the current distribution network (16) being connected on the one hand to the constant current sources (2 or 3) and on the other to the inputs of the voltage amplifier (4).