发明申请
US20080290940A1 DIFFERENTIAL LOW NOISE AMPLIFIER (LNA) WITH COMMON MODE FEEDBACK AND GAIN CONTROL
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基本信息:
- 专利标题： DIFFERENTIAL LOW NOISE AMPLIFIER (LNA) WITH COMMON MODE FEEDBACK AND GAIN CONTROL
- 专利标题（中）：具有通用模式反馈和增益控制的差分低噪声放大器（LNA）
- 申请号：US11751491 申请日：2007-05-21
- 公开(公告)号：US20080290940A1 公开(公告)日：2008-11-27
- 发明人： Jeremy Scuteri , Gregory Blum
- 申请人： Jeremy Scuteri , Gregory Blum
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
A method, algorithm, architecture, circuits, and/or systems for low noise amplification are disclosed. In one embodiment, an amplifier can include an input stage, including a first differential input configured to receive a differential signal, a first current source coupled to the first differential input, a first current load receiving a first bias voltage and coupling the input stage to a first power supply, and a first pair of common mode feedback transistors, coupled to an output of the first current load and configured to limit a current to the first current source. The input stage provides an amplified signal to an additional stage having a structure similar to the input stage, configured to further amplify the amplified signal.
摘要（中）：
公开了一种用于低噪声放大的方法，算法，架构，电路和/或系统。 在一个实施例中，放大器可以包括输入级，包括被配置为接收差分信号的第一差分输入，耦合到第一差分输入的第一电流源，接收第一偏置电压的第一电流负载并将输入级耦合到 第一电源和第一对共模反馈晶体管，耦合到第一电流负载的输出并被配置为限制电流到第一电流源。 输入级将放大的信号提供给具有类似于输入级的结构的附加级，被配置为进一步放大放大的信号。