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1. 发明公开

KR1020000052589A 연산 증폭기 失效
标题翻译：操作放大器
公开(公告)号：KR1020000052589A
公开(公告)日：2000-08-25
申请号：KR1019990063163
申请日：1999-12-28
申请人： 닛본 덴끼 가부시끼가이샤
发明人： 가또후미히꼬
IPC分类号： H03F3/343
CPC分类号： H03F3/345 , H03F3/3023 , H03F3/4521 , H03F2203/45674
摘要： PURPOSE: An operational amplifier is provided to minimize overshoot or undershoot and to perform stable operation. CONSTITUTION: An operational amplifier comprises an input block(K1), a driving block(K2) and an output block(K3). The input block consists of P-channel FETs(M51, M52), N-channel FETs(M55, M56), a P-channel FET(M91) for a constant current source, an N-channel FET(M92) for a constant current source, N-channel FETs(M53, M59), N-channel FETs(M54, M60) and P-channel FETs(M57, M58). The input block has a wide input range by connecting the pair of differential transistors(M51, M52) and the pair of differential transistors(M55, M56) to each other in parallel. The driving block consists of P-channel FETs(M61, M62, M63, M64), and N-channel FETs(M67, M68, M69) for the constant current source. The output block consists of a P-channel FET(M65), an N-channel FET(M66) and an N-channel FET(M70) for the constant current source. The output block performs push-pull operation in response to a plurality of specific signals generated on the basis of an input signal. The output block has the transistors(M65, M66) for generating an output signal as a result of the push-pull operation. The plurality of specific signals have the same delay time before entering the transistors(M65, M66).
摘要翻译：目的：提供运算放大器以最小化过冲或下冲并执行稳定运行。构成：运算放大器包括输入块（K1），驱动块（K2）和输出块（K3）。输入块由P沟道FET（M51，M52），N沟道FET（M55，M56），用于恒流源的P沟道FET（M91），用于恒定电流源的N沟道FET（M92）电流源，N沟道FET（M53，M59），N沟道FET（M54，M60）和P沟道FET（M57，M58）。通过将一对差分晶体管（M51，M52）和一对差分晶体管（M55，M56）并联连接，输入块具有宽的输入范围。驱动块由用于恒流源的P沟道FET（M61，M62，M63，M64）和N沟道FET（M67，M68，M69）组成。输出模块由用于恒流源的P沟道FET（M65），N沟道FET（M66）和N沟道FET（M70）组成。响应于基于输入信号产生的多个特定信号，输出块执行推挽操作。输出块具有作为推挽操作的结果产生输出信号的晶体管（M65，M66）。多个特定信号在进入晶体管（M65，M66）之前具有相同的延迟时间。

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