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:
Jun. 13, 1995
Filed:
May. 14, 1993
Hiroshi Matsushita, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A full differential type analog circuit includes a full differential type operational amplifier, a first network, a second network, and a third network. The full differential type operational amplifier has inverting and non-inverting input terminals and inverting and non-inverting output terminals. The first network is connected between the inverting input terminal and the non-inverting output terminal and has a first input terminal for inputting a signal to the inverting input terminal and a first output terminal connected to the non-inverting output terminal. The second network is connected between the non-inverting input terminal and the inverting output terminal and has a second input terminal for inputting a signal to the non-inverting input terminal and a second output terminal connected to the inverting output terminal. The third network is connected between the first and second networks and includes two capacitors having the same arrangements, each formed by parallelly connecting an upper capacitor electrode and a lower capacitor electrode formed on a semiconductor substrate in opposite directions.