会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • LOW NOISE AND LOW OFFSET BIPOLAR INPUT AMPLIFIERS
    • 低噪声和低偏移双极输入放大器
    • WO02009275A1
    • 2002-01-31
    • PCT/US2001/023251
    • 2001-07-23
    • G05F3/30H03F3/45
    • H03F3/45179G05F3/30H03F3/45282H03F2203/45352H03F2203/45664H03F2203/45674
    • The present invention has an input amplifier circuit (20) that provides a low input offset voltage amplified output signal. Input amplifiers of the present invention include a differential pair of transistors (QL1, QL2) that may be fabricated using standard CMOS process steps. Each transistor in the differential pair includes a parasitic transistor that reduces the current through the associated differential pair transistor. The differential pair has a single ended output coupled to the input of a second amplifier such as a MOSFET (M3). The current through the second amplifier determines the output signal VOUT. The second amplifier is coupled to a third transistor which also includes a parasitic transistor. The third transistor provides a bias current to the second amplifier that is proportional to the current through the differential pair transistors.
    • 本发明具有提供低输入失调电压放大输出信号的输入放大器电路(20)。 本发明的输入放大器包括可以使用标准CMOS工艺步骤制造的差分对晶体管(QL1,QL2)。 差分对中的每个晶体管包括一个寄生晶体管,其减小了通过相关联的差分对晶体管的电流。 差分对具有耦合到诸如MOSFET(M3)的第二放大器的输入的单端输出。 通过第二放大器的电流决定输出信号VOUT。 第二放大器耦合到还包括寄生晶体管的第三晶体管。 第三晶体管提供与通过差分对晶体管的电流成比例的第二放大器的偏置电流。