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. 19, 1986
Filed:
May. 08, 1985
Jimmy R Naylor, Tucson, AZ (US);
Frederick J Highton, Tucson, AZ (US);
Burr-Brown Corporation, Tucson, AZ (US);
Abstract
A low voltage sixteen bit digital-to-analog converter operable between +5 and -5 volt power supplies and capable of providing output voltage levels to within about 1.4 volts of +V.sub.CC and -V.sub.CC includes a circuit for external adjustment of the bit current of a particular bit of the digital-to-analog converter, which circuit produces a constant adjustment current that is summed with that bit current over a wide range of processing parameters and temperature, and requires only a single terminal for connection of an external potentiometer by means of which the bit current is adjusted and a small value filter capacitor for filtering out noise generated by an internal zener diode voltage reference circuit.