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:
Aug. 25, 2026
Filed:
May. 06, 2022
Nordic Semiconductor Asa, Trondheim, NO;
Dominik Przyborowski, Trondheim, NO;
Nordic Semiconductor ASA, Trondheim, NO;
Abstract
A signal processing device is configured to compensate for process and temperature variations deviating from a nominal process and temperature condition. A transconductance amplifier circuit produces a current output dependent on a voltage input and a transconductance gain. A transimpedance amplifier circuit produces a voltage output dependent on the current. A bias circuit comprises transistors (M, M) configured such that the gate and drain of the first transistor (M) are connected to the gate of the second transistor (M) and to a PTAT current source. The source of the first transistor (M) is connected to a node via a first resistor (R), and the source of the second transistor (M) is connected to that node via a second, trimmable resistor (R). A feedback circuit for the transimpedance amplifier comprises a third, trimmable resistor (R). The ratio between a resistance of the second and third resistors (R, R) is constant.