Title:
CURRENT-TO-VOLTAGE CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/145093
Kind Code:
A1
Abstract:
The present invention discloses a current-to-voltage conversion device that runs with low noise and a wide band. In addition to a power source terminal for supplying a common power source voltage to five HEMTs (H1 to H5), the invention is provided with a dedicated second power source terminal for an initial-stage source common circuit of an initial-stage HEMT (H1). Feedback from H4 to H1 in a current-to-voltage conversion unit is composed of a feedback circuit made up of a plurality of resistance elements connected in series. The feedback circuit is composed of parallel connection of feedback resistance elements having resistance value RFBk and feedback capacitors having capacitance value CFBk (k=1, 2, 3,...n). Parasitic capacitance of the resistance elements is used as the necessary capacitance in the feedback circuit to achieve a low feedback capacitance CFB of 1pF or below. The present invention improves the time resolution of the current-voltage conversion device.
Inventors:
HASHISAKA MASAYUKI (JP)
AKIHO TAKAFUMI (JP)
MURAKI KOJI (JP)
KUMADA NORIO (JP)
AKIHO TAKAFUMI (JP)
MURAKI KOJI (JP)
KUMADA NORIO (JP)
Application Number:
PCT/JP2022/003687
Publication Date:
August 03, 2023
Filing Date:
January 31, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H03F1/34; H03F1/26; H03F3/193; H03F3/34
Domestic Patent References:
| WO2021186651A1 | 2021-09-23 |
Foreign References:
| JPS611104A | 1986-01-07 | |||
| JPS575410A | 1982-01-12 |
Other References:
TRACY L. A.; LUHMAN D. R.; CARR S. M.; BISHOP N. C.; TEN EYCK G. A.; PLUYM T.; WENDT J. R.; LILLY M. P.; CARROLL M. S.: "Single shot spin readout using a cryogenic high-electron-mobility transistor amplifier at sub-Kelvin temperatures", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 108, no. 6, 8 February 2016 (2016-02-08), 2 Huntington Quadrangle, Melville, NY 11747, XP012204957, ISSN: 0003-6951, DOI: 10.1063/1.4941421
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
Download PDF:
Previous Patent: HIGH-VOLTAGE POWER SUPPLY
Next Patent: WIRELESS COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM
Next Patent: WIRELESS COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM