发明授权
US5457418A Track and hold circuit with an input transistor held on during hold mode
失效
在保持模式期间，保持输入晶体管的保持电路
- 专利标题： Track and hold circuit with an input transistor held on during hold mode
- 专利标题（中）： 在保持模式期间，保持输入晶体管的保持电路
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申请号： US349240申请日： 1994-12-05
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公开(公告)号： US5457418A公开(公告)日： 1995-10-10
- 发明人: Ronald Chang
- 申请人： Ronald Chang
- 申请人地址： CA Santa Clara
- 专利权人： National Semiconductor Corporation
- 当前专利权人： National Semiconductor Corporation
- 当前专利权人地址： CA Santa Clara
- 主分类号： G11C27/02
- IPC分类号： G11C27/02 ; H03K17/0416 ; H03K17/04 ; H03K5/00
摘要：
A track and hold circuit is disclosed which may be used in high speed analog to digital conversions. The circuit includes a control transistor which keeps the circuit's input transistor in a conductive state even when the circuit is in hold mode. As a result, the track and hold circuit achieves a high switching speed while minimizing input voltage spikes.