发明授权
US08624653B2 Circuit and method for determining comparator offsets of electronic devices
有权
用于确定电子设备的比较器偏移的电路和方法
- 专利标题： Circuit and method for determining comparator offsets of electronic devices
- 专利标题（中）： 用于确定电子设备的比较器偏移的电路和方法
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申请号： US13160979申请日： 2011-06-15
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公开(公告)号： US08624653B2公开(公告)日： 2014-01-07
- 发明人: Miten H. Nagda , Dale J. McQuirk
- 申请人： Miten H. Nagda , Dale J. McQuirk
- 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： H03L5/00
- IPC分类号： H03L5/00
摘要：
A device includes a comparator, and a selection circuit coupled to the inputs of the comparator. The selection circuit receives reference voltages and a variable voltage. In a normal operation mode, the selection circuit provides the variable voltage and a selected reference voltage to the comparator and the comparator provides an indication based on the variable voltage. In a test mode, the selection circuit provides a first selected reference voltage and a second selected reference voltage to the comparator for determining a switching offset voltage of the comparator.
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