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. 09, 1999
Filed:
Dec. 26, 1996
Frank L Thiel, V, Austin, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A low-power op-amp circuit (70) having boosted bandwidth comprises a DC circuit block (72) which is coupled to first (V.sub.DC +, V.sub.DC +, V.sub.AC +) and second (V.sub.DC -, V.sub.AC) input nodes and to an output node (V.sub.OUT) of an output stage (90). The DC circuit block (72) amplifies a differential signal received from the first (V.sub.DC +, V.sub.AC +) and second (V.sub.DC -, V.sub.AC) input nodes, and provides an amplified signal to the output node (V.sub.OUT). An AC circuit block (74) is coupled to the output (NODE 3) of the DC circuit block (72). The AC circuit block (74) is operable to monitor a transient change between the first (V.sub.DC +, V.sub.AC +) and the second (V.sub.DC -, V.sub.AC -) input nodes. The AC circuit block (74) is further operable to transfer charge to the output node (V.sub.OUT) in response to the transient change, thereby providing boosted bandwidth beyond that of the DC circuit block (72) alone.