Invention Application
- Patent Title: GAIN ENHANCEMENT USING ADVANCED CORRELATED LEVEL SHIFTING
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Application No.: US14930186Application Date: 2015-11-02
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Publication No.: US20170126189A1Publication Date: 2017-05-04
- Inventor: Zhichao Tan , Khiem Quang Nguyen , Xiao Hong Du
- Applicant: Analog Devices, Inc.
- Main IPC: H03G1/00
- IPC: H03G1/00 ; H03F3/45 ; H03F3/00

Abstract:
Systems and methods disclosed herein provide for enhancing the low frequency (DC) gain of an operational amplifier with multiple correlated level shifting capacitors. In an embodiment, the operational amplifier is level shifted with a first correlated level shifting capacitor in a first phase and, then, is level shifted again with at least a second correlated level shifting capacitor in at least a second, non-overlapping, consecutive phase. In an embodiment, the multiple correlated level capacitors are controlled by a switching circuit network.
Public/Granted literature
- US09813035B2 Gain enhancement using advanced correlated level shifting Public/Granted day:2017-11-07
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