Chip-type electronic component
US-2024038754-A1 · Feb 1, 2024 · US
High resolution capacitor
US8933751B1 · US · B1
| Field | Value |
|---|---|
| Publication number | US-8933751-B1 |
| Application number | US-201213475678-A |
| Country | US |
| Kind code | B1 |
| Filing date | May 18, 2012 |
| Priority date | May 18, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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A first trimming capacitor having a first terminal and a second terminal is coupled in parallel between a first terminal and a second terminal of a first capacitor. The first trimming capacitor comprises a first plurality of switched capacitors having different capacitances coupled in parallel. Each of the switched capacitors comprises a switch capacitor and a switch coupled in series. In an illustrative application the first capacitor and the first trimming capacitor are coupled between an output terminal of an operational amplifier (op-amp) and an inverting input terminal of the op-amp. A second capacitor and a second trimming capacitor similar to the first capacitor and the first trimming capacitor are coupled between an input and the inverting input terminal of the op-amp.
First claim
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What is claimed is: 1. A circuit comprising: an operational amplifier (op-amp) having an inverting input, a non-inverting input, and an output; a first capacitor having a first terminal and a second terminal, the second terminal being coupled to the inverting input of the op-amp; a second capacitor having a first terminal and a second terminal, the first terminal being coupled to the output of the op-amp and the second terminal being coupled to the inverting input of the op-am…
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Frequently asked questions
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- What does patent US8933751B1 cover?
- A first trimming capacitor having a first terminal and a second terminal is coupled in parallel between a first terminal and a second terminal of a first capacitor. The first trimming capacitor comprises a first plurality of switched capacitors having different capacitances coupled in parallel. Each of the switched capacitors comprises a switch capacitor and a switch coupled in series. In an il…
- Who is the assignee on this patent?
- Wong Wilson, Ding Weiqi, Chen Shuxian, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H01G4/40. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).