Title:
PHOTODETECTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2000/033038
Kind Code:
A1
Abstract:
An integrator circuit (10) receiving a current signal from the anode terminal of a photodiode (PD) includes a two-input, two-output full-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:
MIZUNO SEIICHIRO (JP)
Application Number:
PCT/JP1999/006757
Publication Date:
June 08, 2000
Filing Date:
December 02, 1999
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
MIZUNO SEIICHIRO (JP)
MIZUNO SEIICHIRO (JP)
International Classes:
G01J1/44; G06G7/186; H01L31/10; H04N5/32; H03F3/30; H03F3/45; (IPC1-7): G01J1/44; H01L31/10; G01T1/20
Foreign References:
| JPH08107317A | 1996-04-23 | |||
| JPH0563272A | 1993-03-12 | |||
| JPH104520A | 1998-01-06 | |||
| JPH09270961A | 1997-10-14 | |||
| JPH0951476A | 1997-02-18 | |||
| JPH08330560A | 1996-12-13 | |||
| US5448056A | 1995-09-05 | |||
| JPH09270961A | 1997-10-14 | |||
| JPH104520A | 1998-01-06 | |||
| US5793230A | 1998-08-11 |
Other References:
See also references of EP 1136798A4
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Ginza 2-chome Chuo-ku Tokyo, JP)
Download PDF: