发明申请
- 专利标题: Exponential transconductance amplifier
- 专利标题(中): 指数跨导放大器
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申请号: US10016962申请日: 2001-12-14
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公开(公告)号: US20030112069A1公开(公告)日: 2003-06-19
- 发明人: Jong K. Kim , Elangovan Nainar , Michael P. Straub
- 主分类号: H03F003/45
- IPC分类号: H03F003/45
摘要:
A non-linear transconductance amplifier includes a differential input stage and a non-linear transconductance stage operatively coupled to the differential input stage. The differential input stage includes first and second inputs forming a non-inverting input and an inverting input, respectively, of the amplifier for receiving an input differential signal. The non-linear transconductance stage generates an output of the amplifier having a linear transconductance that is substantially zero when the input differential signal is within a predetermined range and a non-linear large transconductance when the input differential signal is outside the predetermined range. The amplifier provides improved response time to widely varying load conditions while possessing a low loop bandwidth. A threshold region where the output of the amplifier is substantially zero can be operatively adjusted and tightly controlled. Furthermore, the amplifier accomplishes these advantages without employing timing circuitry and without the necessary overhead and/or noise often associated with such timing circuitry.
公开/授权文献
- US06650182B2 Exponential transconductance amplifier 公开/授权日:2003-11-18