Title:
光検出装置
Document Type and Number:
Japanese Patent JP4390881
Kind Code:
B2
Abstract:
An integrator circuit (10) receiving a current signal from the anode terminal of a photodiode (PD) includes a two-input, two-output fall-differential amplifier (A0), capacitors (C01, C02), switches (S01, S02, S11, S12), and an additional capacitor (Ca). The capacitor (C01) and the switch (S01) are connected in parallel between the negative and positive input terminals of the full-differential amplifier (A0). The negative input terminal of the full-differential amplifier (A0) is connected with the anode terminal of the photodiode (PD). The capacitor (C02) and the switch (S02) are connected in parallel between the positive and negative input terminals of the full-differential amplifier (A0). The positive input terminal of the full-differential amplifier (A0) is connected with the additional capacitor (Ca) whose capacitance is substantially equal to the junction capacitance of the photodiode (PD).
Inventors:
Seiichiro Mizuno
Application Number:
JP34310398A
Publication Date:
December 24, 2009
Filing Date:
December 02, 1998
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
G01J1/44; H04N5/32; G06G7/186; H01L31/10; H03F3/30; H03F3/45
Domestic Patent References:
| JP58222631A | ||||
| JP6097830A | ||||
| JP1187467A | ||||
| JP9229769A | ||||
| JP5181556A |
Other References:
IEEE Journal of Solid-State Circuits,1995年 5月,Vol.30 No.5,p.533~541
Attorney, Agent or Firm:
Yoshiki Hasegawa
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata