Title:
CHARGE AMOUNT DETECTION CIRCUIT
Document Type and Number:
Japanese Patent JP3942793
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To compress the increase of a chip size due to the provision of a low-pass filter circuit as much as possible and to suppress the increase of a chip cost as much as possible in a charge amount detection circuit provided with the low-pass filter circuit in the post stage of a charge detection amplifier and provided with a voltage amplifier circuit in the post stage further.
SOLUTION: A part of elements for constituting the low-pass filter circuit is made to serve also as a part of the elements for constituting the voltage amplifier circuit.
Inventors:
Masayuki Takahashi
Hisao Okada
Hisao Okada
Application Number:
JP2000095508A
Publication Date:
July 11, 2007
Filing Date:
March 30, 2000
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G01R29/24; H01L27/12; H01L27/14; H01L27/146; H04N5/32; H04N5/335; H04N5/357; H04N5/363; H04N5/369; H04N5/3745; H04N5/378; H01L31/0272; (IPC1-7): H04N5/335; G01R29/24; H01L27/14; H04N5/32
Domestic Patent References:
| JP58015317A | ||||
| JP59080233A | ||||
| JP62198720U |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
Kenzo Hara
Kenzo Hara
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