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:
Jan. 21, 2003
Filed:
Oct. 24, 2000
Shigetoshi Nakao, Atsugi, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A digital-to-analog (D/A) converter with a required accuracy can be implemented in a smaller chip area and at a lower cost. The D/A converter comprises a decoder which receives a digital input signal comprised of a first number of bits, and divides the first number of bits into a second number of bit groups. Bit group converters equal in number to the second number, are provided for the second number of bit groups, and each selects and uses a form of weight for each of the bit groups associated therewith to convert the bit group into an analog form in response to the second number of bit groups, thereby generating the second number of bit group analog outputs. An adder adds the second number of the bit group analog outputs to form an analog signal output representative of the digital signal input.