公开(公告)号：EP2630728B1

公开(公告)日：2017-02-22

申请号：EP10858527.4

申请日：2010-10-21

申请人： Atmel Corporation

发明人： WEI, Changming ,  ZHANG, Yu ,  JIANG, Lixin ,  CHEN, Jinfu ,  BARROW, Jeffrey G.

IPC分类号： H03G3/20 ,  H02M1/08 ,  H03K17/06 ,  H03K17/687

CPC分类号： H03F3/45475 ,  H03F2203/45534 ,  H03F2203/45536 ,  H03G1/0088 ,  H03K17/063 ,  H03K17/6872 ,  H03K17/6877 ,  H03K2017/066 ,  H03K2217/0054

公开(公告)号：EP2630728A1

公开(公告)日：2013-08-28

申请号：EP10858527.4

申请日：2010-10-21

申请人： Atmel Corporation

发明人： WEI, Changming ,  ZHANG, Yu ,  JIANG, Lixin ,  CHEN, Jinfu ,  BARROW, Jeffrey G.

IPC分类号： H03G3/20 ,  H02M1/08

CPC分类号： H03F3/45475 ,  H03F2203/45534 ,  H03F2203/45536 ,  H03G1/0088 ,  H03K17/063 ,  H03K17/6872 ,  H03K17/6877 ,  H03K2017/066 ,  H03K2217/0054

摘要： A programmable gain amplifier (PGA) (170) and a switch circuit (300, 400) used in the PGA. The switch circuit includes a first transistor (350-1, 350-2, 350-n) having a source terminal (130-1, 130-2, 130-n) to accept an input signal (171), a drain terminal (140-1, 140-2, 140-n) to provide an output signal, and a gate (120-1, 120-2, 120-n). A power supply provides a gate voltage for the first transistor. The switch circuit can also include a circuit to couple a switch signal (100-1, 100-2, 100-n) to the gate. The circuit turns the first transistor "off" for all values of the input signal when the switch signal is "low". The PGA includes an input stage having an input node to couple the input signal, an output node to provide a gate signal, and at least a first gain stage including a resistor and the switch circuit. A differential gain amplifier (160) can be included to provide an output voltage signal from the gain signal.

公开(公告)号：EP3174201A1

公开(公告)日：2017-05-31

申请号：EP16207064.3

申请日：2010-10-21

申请人： Atmel Corporation

发明人： WEI, Changming ,  ZHANG, Yu ,  JIANG, Lixin ,  CHEN, Jinfu ,  BARROW, Jeffrey G.

IPC分类号： H03G3/20 ,  H02M1/08 ,  H03K17/06 ,  H03K17/687

CPC分类号： H03F3/45475 ,  H03F2203/45534 ,  H03F2203/45536 ,  H03G1/0088 ,  H03K17/063 ,  H03K17/6872 ,  H03K17/6877 ,  H03K2017/066 ,  H03K2217/0054

摘要： A switch circuit is provided. The switch circuit may include a first transistor having a source terminal to accept an input signal, a drain terminal to provide an output signal, and a gate; a power supply providing a gate voltage. The switch circuit may also include a circuit to couple a switch signal to the gate, wherein the circuit turns the first transistor 'off' for all values of the input signal when the switch signal is 'low.' A programmable gain amplifier (PGA) is also provided. The PGA may include an input stage having an input node to couple an input signal, and an output node to provide a gate signal, at least a first gain stage including a resistor and a switch circuit as above. A differential gain amplifier may be included to provide an output signal from the gain signal.

摘要翻译： 本发明提供一种开关电路。 开关电路可以包括具有源极端接受输入信号，漏极端子，以提供输出信号，和一个栅极的第一晶体管; 一个电源提供的栅极电压。 因此，该开关电路可以包括电路耦合的开关信号到栅极，worin接通电路的输入信号。当开关信号是所有值的第一晶体管“关断”“低”。 因此，一个可编程增益放大器（PGA）设置。 该PGA可以包括在输入级具有输入节点耦合到输入信号，并且输出节点以提供栅极信号，至少包括电阻器和如上述的开关电路的第一增益级。 差动增益放大器可被包括以提供对从所述信号增益输出信号。