发明公开
EP1116324A4 DIFFERENTIAL AMPLIFIER WITH GAIN LINEARIZATION THROUGH TRANSCONDUCTANCE COMPENSATION
有权
带功放的线性化BY TRANSKONDUKTANZKOMPENSATION差动放大器
- 专利标题: DIFFERENTIAL AMPLIFIER WITH GAIN LINEARIZATION THROUGH TRANSCONDUCTANCE COMPENSATION
- 专利标题(中): 带功放的线性化BY TRANSKONDUKTANZKOMPENSATION差动放大器
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申请号: EP99946680申请日: 1999-08-25
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公开(公告)号: EP1116324A4公开(公告)日: 2005-01-26
- 发明人: FILIP JAN
- 申请人: MAXIM INTEGRATED PRODUCTS , HISYS GMBH
- 专利权人: MAXIM INTEGRATED PRODUCTS,HISYS GMBH
- 当前专利权人: MAXIM INTEGRATED PRODUCTS,HISYS GMBH
- 优先权: US14187498 1998-08-27
- 主分类号: H03F3/45
- IPC分类号: H03F3/45 ; H03F1/30 ; H03F1/32 ; H03F1/34
摘要:
Disclosed is a differential amplifier including an emitter follower pair (Q1, Q2), a first differential pair (Q3, Q4), and a main differential amplifier (Q5, Q6). The emitter follower pair is operative to receive an input differential voltage signal for shifting the input differential voltage signal to develop a shifted differential voltage signal. The first differential pair is configured to feed a first differential current inversely to the emitter follower pair so that a transconductance of the emitter follower pair changes inversely to compensate for a change in a transconductance of the first differential pair. The main differential amplifier is coupled to receive the shifted differential voltage signal and is configured to amplify the shifted differential voltage signal to generate an output voltage signal.
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