Programmable gain amplifier capable of adjusting signals
A gain amplifier and adjustable technology, applied in the direction of amplifiers, DC-coupled DC amplifiers, differential amplifiers, etc., can solve the problems of increasing circuit complexity, increasing design difficulty, increasing power consumption, etc., to simplify circuit design and reduce design difficulty , the effect of reducing the area
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[0025] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be further described below in conjunction with the accompanying drawings. Of course, the present invention is not limited to this specific embodiment, and general replacements known to those skilled in the art are also covered within the protection scope of the present invention.
[0026] The following is attached Figure 5-7 The present invention will be described in further detail with specific examples. It should be noted that the drawings are all in a very simplified form, using imprecise scales, and are only used to facilitate and clearly achieve the purpose of assisting in describing the present embodiment.
[0027]In this embodiment, the signal-adjustable and programmable gain amplifier adopts a PGA circuit, including: an operational amplifier circuit, an input terminal, an output terminal, a first feedback capacitor, a second feedbac...
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