发明公开
- 专利标题： Transistor circuit
- 专利标题（中）： Transistorschaltung。
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申请号： EP90200067.8申请日： 1990-01-11
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公开(公告)号： EP0380152A1公开(公告)日： 1990-08-01
- 发明人: Seevinck, Evert , Dikken, Jan , Schumacher, Hans-Jürgen Otto
- 申请人： Philips Electronics N.V.
- 申请人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 专利权人： Philips Electronics N.V.
- 当前专利权人： Philips Electronics N.V.
- 当前专利权人地址： Groenewoudseweg 1 5621 BA Eindhoven NL
- 代理机构： Strijland, Wilfred
- 优先权： NL8900095 19890117
- 主分类号： H03F3/45
- IPC分类号： H03F3/45 ; H03K5/02
摘要：
A transistor circuit (1), comprising a first differential amplifier (N₁, N₂) which is composed of a differential pair (N₁, N₂) and a current mirror (P₂, P₃). The transistor circuit in accordance with the invention comprises a second differential amplifier (10) which measures a differential offset voltage and reduces this offset voltage by means of common mode current feedback. The transistor circuit thus offers a stable amplifier having a high speed and a low offset voltage. Such a transistor circuit can be advantageously used in a logic output buffer so that, for example an ECL output buffer can be realized in CMOS.
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