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:
Mar. 16, 1993
Filed:
Jan. 23, 1992
Jack C Wu, Tempe, AZ (US);
David G England, Phoenix, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A unity gain amplifier based on CMOS technology designed to drive a large capacitive load such as a piezoelectric speaker with a 5V power supply. The invention utilizes a rail-to-rail voltage range (i.e., ground to power supply voltage) at its input as well as at its output and is capable of entering into a power down mode, In this manner, it is possible to produce as a single application specific integrated circuit (ASIC), a circuit for converting a digital signal to an analog signal and amplifying the analog signal so as to be capable of driving a large capacitive load with a rail-to-rail dynamic range and which operates at low noise.