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.

Date of Patent:
Jul. 08, 2025

Filed:

May. 29, 2023
Applicant:

Mediatek Inc., Hsinchu, TW;

Inventors:

Chih-Hou Tsai, Hsinchu, TW;

Chien-Yuan Cheng, Hsinchu, TW;

Ting-Yu Ko, Hsinchu, TW;

Shu-Lin Chang, Hsinchu, TW;

Assignee:

MEDIATEK INC., Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/74 (2006.01);
U.S. Cl.
CPC ...
H03M 1/74 (2013.01);
Abstract

A complementary current-steering digital-to-analog converter (DAC) including a p-type DAC as well as an n-type DAC is shown. The p-type DAC has p-type current sources, and the n-type DAC has n-type current sources. The p-type and n-type current sources are coupled to a first input terminal or a second input terminal of a transimpedance amplifier (TIA) according to the digital input of the complementary current-steering DAC. In response to the digital input changing from a first value to a second value that is greater than the first value, one or more n-type current sources connected to the second input terminal of the TIA are switched so that they are connected to the first input terminal of the TIA.


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