发明申请
- 专利标题: SAMPLE AND HOLD CIRCUIT
- 专利标题(中): 示例和保持电路
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申请号: US13455400申请日: 2012-04-25
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公开(公告)号: US20130285705A1公开(公告)日: 2013-10-31
- 发明人: Mohammad Nizam U. Kabir , Douglas A. Garrity , Rakesh Shiwale
- 申请人: Mohammad Nizam U. Kabir , Douglas A. Garrity , Rakesh Shiwale
- 申请人地址: US TX Austin
- 专利权人: FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人: FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人地址: US TX Austin
- 主分类号: G11C27/02
- IPC分类号: G11C27/02
摘要:
A sample and hold circuit is provided. The circuit includes a plurality of switches, a first capacitor, an operational amplifier having a first input selectively coupled to the first capacitor and an output, a second capacitor and a third capacitor both selectively coupled to the first capacitor and both selectively coupled between the first input of the operational amplifier and the output of the operational amplifier, wherein the plurality of switches are configured to receive a plurality of control signals such that the first capacitor is configured to sample an input signal in a sample phase and to transfer a charge to one of the second capacitor and the third capacitor in a hold phase, and the second capacitor and third capacitor are configured to alternate between holding the transferred charge and resetting in any back-to-back hold phases.
公开/授权文献
- US08610467B2 Sample and hold circuit 公开/授权日:2013-12-17
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