公开(公告)号：US20020118063A1

公开(公告)日：2002-08-29

申请号：US10026434

申请日：2001-12-27

Applicant: ALCATEL

Inventor： Francois Jeanjean ,  Rudi Verbist

IPC: H03F003/45

CPC classification number: H03F3/347

Abstract: A differential output amplifier arrangement (DOA) comprises two operational amplifier (OA1, OA2) each having a feedback resistor (R2, R4). A pair of output resistors (R1, R3) couples the output terminals (OUT1, OUT2) of the operational amplifiers (OA1, OA2) to respective output terminals (ZOUT1, ZOUT2) of the arrangement (DOA), and a pair of input terminals (R7, R8) couples input terminals (IN1, IN2) of the arrangement (DOA) to negative polarity type input terminals (INN1, INN2) of the respective operational amplifiers (OA1, OA2). The positive polarity type input terminals (INP1, INP2) of the operational amplifiers (OA1, OA2) are grounded. Two additional resistors (R5, R6) cross-couple the output terminals (ZOUT1, ZOUT2) of the arrangement (DOA) to the negative polarity type input terminals (INN2, INN1) of the cross-coupled operational amplifiers (OA2, OA1).

Abstract translation: 差分输出放大器装置（DOA）包括每个具有反馈电阻器（R2，R4）的两个运算放大器（OA1，OA2）。 一对输出电阻器（R1，R3）将运算放大器（OA1，OA2）的输出端子（OUT1，OUT2）耦合到配置（DOA）的各个输出端子（ZOUT1，ZOUT2）和一对输入端子 （R7，R8）将布置（DOA）的输入端子（IN1，IN2）耦合到各个运算放大器（OA1，OA2）的负极型输入端子（INN1，INN2）。 运算放大器（OA1，OA2）的正极性输入端子（INP1，INP2）接地。 两个附加电阻器（R5，R6）将布置（DOA）的输出端子（ZOUT1，ZOUT2）交叉耦合到交叉耦合运算放大器（OA2，OA1）的负极型输入端子（INN2，INN1）。