Invention Grant
- Patent Title: Operational amplifier and method for amplifying a signal with shared compensation components
- Patent Title (中): 运算放大器和用共享补偿元件放大信号的方法
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Application No.: US11592075Application Date: 2006-11-01
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Publication No.: US07884672B1Publication Date: 2011-02-08
- Inventor: Joseph A. Cetin , Matthew D. Sienko
- Applicant: Joseph A. Cetin , Matthew D. Sienko
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
An operational amplifier and a method for amplifying a signal. Embodiments provide a convenient and effective mechanism for reducing die area, design time and design verification time by sharing compensation components between the common-mode and differential feedback networks of the operational amplifier. As such, fewer compensation components are required, thereby reducing component die area. Additionally, given that the compensation components are shared between the common-mode and differential feedback networks, the feedback networks can be stabilized together with fewer compensation components to specify and verify, thereby reducing design and design verification time. Further, embodiments provide a compensation component coupling which does not couple directly to virtual ground, thereby reducing the noise of the operational amplifier.
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