发明授权
- 专利标题： Operational transconductance amplifier track and hold system
- 专利标题（中）： 操作跨导放大器跟踪和保持系统
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申请号： US149592申请日： 1993-11-10
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公开(公告)号： US5483687A公开(公告)日： 1996-01-09
- 发明人: Raymond L. Barrett, Jr. , Barry Herold , Jeannie H. Kosiec
- 申请人： Raymond L. Barrett, Jr. , Barry Herold , Jeannie H. Kosiec
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H03J1/00
- IPC分类号： H03J1/00 ; H04B1/26 ; H04B1/18
摘要：
A voltage track and hold circuit operates to track a tuning voltage and holding the tuning voltage (404) as a reference voltage (408). In the track mode, the track and hold circuit includes a first operational transconductance amplifier (401) and a first charge storage device (402) coupled to a first input (403) of the first operational transconductance amplifier (401). The first charge storage device (402) accumulates a charge that corresponds with the tuning voltage (404). A second charge storage device (405) is coupled to a second input (406) and an output (407) of the first operational transconductance amplifier (401). The second charge storage device (405) accumulates a reference charge such that the reference voltage (408) present at the second charge storage device (405) is substantially equivalent to the tuning voltage (404).
公开/授权文献
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