Title:
TRANSCONDUCTANCE AMPLIFIER AND RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/225031
Kind Code:
A1
Abstract:
A transconductance amplifier, wherein the power consumption and noise are reduced. The transconductance amplifier is provided with a main amplifier, an auxiliary amplifier, a feedback capacitance, a gate capacitance, a load capacitance, and an impedance matching circuit. The main amplifier converts the voltage of an input signal into a current and outputs the current. The auxiliary amplifier is connected in parallel with the main amplifier. The feedback capacitance causes the output of the auxiliary amplifier to be fed back, with the phase thereof inverted, to the input side. The gate capacitance grounds the input of the auxiliary amplifier to earth. The load capacitance grounds the output of the auxiliary amplifier to earth. The impedance matching circuit causes the signal source impedance of the input signal to be matched with the input impedance of the auxiliary amplifier.
Inventors:
TAKANO HIDEYUKI (JP)
Application Number:
PCT/JP2021/009750
Publication Date:
November 11, 2021
Filing Date:
March 11, 2021
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H04B1/18; H03F1/02; H03F1/26; H03F3/34
Foreign References:
| JP2008295060A | 2008-12-04 | |||
| JP2001267853A | 2001-09-28 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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