发明名称 |
Linear low noise transconductance cell |
摘要 |
A low noise transconductance cell includes a resistor and a differential circuit pair having two equivalent half-circuits. Each half-circuit includes a feedback loop coupled to the resistor. The feedback loop includes an input transistor coupled to an inverting gain stage. The inverting gain stage is coupled to an output transistor which in turn is coupled to the input transistor and the resistor. In a low noise transconductance cell, a bias current source is coupled to the center of series connected resistors. In a high swing transconductance cell, a first bias current source is coupled to the left terminal of a resistance stage and a second bias current source is coupled to the right terminal of the resistance stage. The resistance stage can include a single resistor or a plurality of resistors.
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申请公布号 |
US7002405(B2) |
申请公布日期 |
2006.02.21 |
申请号 |
US20040777629 |
申请日期 |
2004.02.13 |
申请人 |
BROADCOM CORPORATION |
发明人 |
BROOKS TODD;SONG JUNGWOO;TONG WYNSTAN |
分类号 |
G06G7/12;G06G7/26;H03F3/45;H03K5/22;H03K5/24 |
主分类号 |
G06G7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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