Invention Grant
- Patent Title: Input circuit and semiconductor integrated circuit including the same
- Patent Title (中): 输入电路和半导体集成电路包括相同
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Application No.: US12382542Application Date: 2009-03-18
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Publication No.: US07834670B2Publication Date: 2010-11-16
- Inventor: Yuji Nakajima
- Applicant: Yuji Nakajima
- Applicant Address: JP Kawasaki, Kanagawa
- Assignee: NEC Electronics Corporation
- Current Assignee: NEC Electronics Corporation
- Current Assignee Address: JP Kawasaki, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2008-075424 20080324
- Main IPC: H01B1/00
- IPC: H01B1/00
Abstract:
An input circuit, includes a first buffer circuit having an output signal terminal connected to an output; a capacitor having one end connected to an input signal terminal, and the other end connected to an input of the first buffer circuit; a first differential amplification circuit receiving a voltage of a first external power source terminal and an output of a second buffer circuit; a second differential amplification circuit receiving a voltage of a second external power source terminal and an output of a third buffer circuit; a first resistance having one end connected to an output of the first differential amplification circuit, and the other end connected between the capacitor and the first buffer circuit; and a second resistance having one end connected to an output of the second differential amplification circuit, and the other end connected between the capacitor and the first buffer circuit.
Public/Granted literature
- US20090237124A1 Input circuit and semiconductor integrated circuit including the same Public/Granted day:2009-09-24
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