Invention Grant
- Patent Title: Operational amplifier circuits
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Application No.: US14513387Application Date: 2014-10-14
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Publication No.: US09628035B2Publication Date: 2017-04-18
- Inventor: Hung-Chieh Tsai , Chi-Lun Lo , Chen-Yen Ho , Yu-Hsin Lin
- Applicant: MediaTek Inc.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03F3/193 ; H03F1/14 ; H03F1/32 ; H03F3/30 ; H03F1/48

Abstract:
An implementation of an operational amplifier circuit includes a first stage amplifier circuit, a second stage amplifier circuit and a first feedforward circuit. The first stage amplifier circuit is coupled to a first input node for receiving a first input signal and amplifying the first input signal to generate a first amplified signal. The second stage amplifier circuit is coupled to the first stage amplifier circuit for receiving the first amplified signal and amplifying the first amplified signal to generate a first output signal at a first output node. The first feedforward circuit is coupled between the first input node and the second stage amplifier circuit for feeding the first input signal forward to the second stage amplifier circuit.
Public/Granted literature
- US20150028951A1 OPERATIONAL AMPLIFIER CIRCUITS Public/Granted day:2015-01-29
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