The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2026
Filed:
Oct. 21, 2021
SG Micro Corp, Beijing, CN;
SG MICRO CORP, Beijing, CN;
Abstract
Disclosed is an operational amplifier, including: a loading input transistor pair; a differential input transistor pair, which is connected with the loading input transistor pair, has a non-inverting input terminal receiving a non-inverting input signal, and has an inverting input terminal receiving an inverting input signal; a controller unit, generating a first control signal according to the non-inverting input signal and a second control signal according to the inverting input signal; a regulator unit, connected between the differential input transistor pair and ground, controlled by the first control signal and the second control signal, and select an on/off state of the regulator unit itself according to a voltage difference between the non-inverting and inverting input signals, which is withstood by a MOS transistor with high withstand voltage, thus allowing a source-drain voltage of the input transistor pair to be within a voltage range accepted by process.