公开(公告)号：US09093962B2

公开(公告)日：2015-07-28

申请号：US14402003

申请日：2013-05-24

Applicant: ST-Ericsson SA

Inventor： Andrea Barbieri ,  Germano Nicollini

IPC: H03F3/45 ,  H03F3/21 ,  H03M1/18

CPC classification number: H03F3/45071 ,  H03F1/0261 ,  H03F3/21 ,  H03F3/3023 ,  H03F3/45183 ,  H03F2200/153 ,  H03F2200/411 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/513 ,  H03F2203/45134 ,  H03F2203/45192 ,  H03F2203/45644 ,  H03F2203/45658 ,  H03M1/183

Abstract: The invention relates to a two-stage operational amplifier (400) in class AB for driving a load (RLB, RLA) comprising: an input stage (401) comprising differential input terminals (IN, 1P) and a first differential output terminal (O1P) and a second differential output terminal (O1N) for providing a first differential driving signal (Out1P) and a second differential driving signal (Out1N), respectively; an output stage (402) comprising a first output branch (403) having a first differential input terminal (I1P) operatively connected to the first differential output terminal (O1P) of the input stage (401) to receive the first differential driving signal (OUT1P) and a second output branch (404) having a second differential input terminal (I1N) operatively connected to the second differential output terminal (O1N) of the output stage (401) to receive the second differential driving signal (Out1N), —a control circuit (405) configured to control the output stage (402).

Abstract translation: 本发明涉及用于驱动负载（RLB，RLA）的AB类中的两级运算放大器（400），包括：输入级（401），包括差分输入端（IN，1P）和第一差分输出端（O1P ）和用于分别提供第一差分驱动信号（Out1P）和第二差分驱动信号（Out1N）的第二差分输出端子（O1N） 输出级（402），包括具有可操作地连接到输入级（401）的第一差分输出端（O1P）的第一差分输入端（I1P）的第一输出分支（403），以接收第一差分驱动信号（OUT1P ）和第二输出分支（404），其具有可操作地连接到输出级（401）的第二差分输出端（O1N）的第二差分输入端（I1N），以接收第二差分驱动信号（Out1N）， - 控制 电路（405）被配置为控制输出级（402）。

公开(公告)号：US09292029B2

公开(公告)日：2016-03-22

申请号：US14379399

申请日：2013-02-26

Applicant: ST-Ericsson SA

Inventor： Germano Nicollini ,  Andrea Barbieri

IPC: G05F1/10 ,  G05F3/26 ,  G05F1/56 ,  H03H7/01

CPC classification number: G05F3/262 ,  G05F1/56 ,  G05F1/561 ,  G05F3/26 ,  H03H7/0161

Abstract: A low-noise reference voltages distribution circuit has a multi-output voltage-to-current converter configured to receive an input reference voltage and to provide a plurality of output reference currents to be converted into a plurality of local reference voltages by corresponding receiving circuits. The converter includes an input section, an output section and a low-pass filter. The input section generates a reference current based on the input reference voltage, and has a current mirror input transistor having a voltage controlled input terminal. The output section includes a plurality of current mirror output transistors outputting reference currents to the plurality of reference currents, respectively, and having a voltage controlled input terminal connected to a common input node. The low-pass filter has an input node connected to the voltage controlled input terminal of the current mirror input transistor and an output node connected to the common input node.

Abstract translation: 低噪声参考电压分配电路具有被配置为接收输入参考电压并且通过相应的接收电路提供多个输出参考电流以被转换成多个局部参考电压的多输出电压 - 电流转换器。 转换器包括输入部分，输出部分和低通滤波器。 输入部分基于输入参考电压生成参考电流，并且具有电压反射镜输入晶体管，其具有电压控制的输入端子。 输出部分包括分别向多个参考电流输出参考电流并且具有连接到公共输入节点的电压控制输入端的多个电流镜输出晶体管。 低通滤波器具有连接到电流镜输入晶体管的电压控制输入端的输入节点和连接到公共输入节点的输出节点。

公开(公告)号：US20150155841A1

公开(公告)日：2015-06-04

申请号：US14402003

申请日：2013-05-24

Applicant: ST-Ericsson SA

Inventor： Andrea Barbieri ,  Germano Nicollini

IPC: H03F3/45 ,  H03M1/18 ,  H03F3/21

CPC classification number: H03F3/45071 ,  H03F1/0261 ,  H03F3/21 ,  H03F3/3023 ,  H03F3/45183 ,  H03F2200/153 ,  H03F2200/411 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/513 ,  H03F2203/45134 ,  H03F2203/45192 ,  H03F2203/45644 ,  H03F2203/45658 ,  H03M1/183

Abstract: The invention relates to a two-stage operational amplifier (400) in class AB for driving a load (RLB, RLA) comprising: an input stage (401) comprising differential input terminals (IN, lp) and a first differential output terminal (O1P) and a second differential output terminal (O1N) for providing a first differential driving signal (Out1P) and a second differential driving signal (Out1N), respectively; an output stage (402) comprising a first output branch (403) having a first differential input terminal (I1P) operatively connected to the first differential output terminal (O1P) of the input stage (401) to receive the first differential driving signal (OUT1P) and a second output branch (404) having a second differential input terminal (I1N) operatively connected to the second differential output terminal (O1N) of the output stage (401) to receive the second differential driving signal (Out1N), a control circuit (405) configured to control the output stage (402).

Abstract translation: 本发明涉及用于驱动负载（RLB，RLA）的AB类中的两级运算放大器（400），包括：输入级（401），包括差分输入端（IN，lp）和第一差分输出端（O1P ）和用于分别提供第一差分驱动信号（Out1P）和第二差分驱动信号（Out1N）的第二差分输出端子（O1N） 输出级（402），包括具有可操作地连接到输入级（401）的第一差分输出端（O1P）的第一差分输入端（I1P）的第一输出分支（403），以接收第一差分驱动信号（OUT1P ）和具有与输出级（401）的第二差分输出端子（O1N）可操作地连接以接收第二差分驱动信号（Out1N）的第二差分输入端子（I1N）的第二输出分支（404），控制电路 （405），被配置为控制所述输出级（402）。

公开(公告)号：US20150035591A1

公开(公告)日：2015-02-05

申请号：US14379399

申请日：2013-02-26

Applicant: ST-Ericsson SA

Inventor： Germano Nicollini ,  Andrea Barbieri

IPC: G05F3/26 ,  H03H7/01

CPC classification number: G05F3/262 ,  G05F1/56 ,  G05F1/561 ,  G05F3/26 ,  H03H7/0161

Abstract: A low-noise reference voltages distribution circuit (10) is disclosed, comprising a multi-output voltage to current converter (V/I_Conv) adapted to receive an input reference voltage (VR) for providing a plurality of output reference currents (I1, . . . , IN) to be converted into a plurality of local reference voltages (V01, V0N) at corresponding receiving circuits (LCR1, LCRN) adapted to be connected to said reference voltages distribution circuit (10). The multi-output voltage to current converter (V/I_Conv) comprises: -an input section (20) adapted to generate on the basis of said input reference voltage (VR) a reference current (I0), the input section (20) comprising a current mirror input transistor (M0E) having a voltage controlled input terminal (g0E); -an output section (50) comprising a plurality of current mirror output transistors (M01, M0N) each adapted to provide a corresponding output reference current of said plurality of reference currents (I1, . . . , IN), each of said current mirror output transistors (M01, M0N) comprising a voltage controlled input terminal (g01, . . . , g0N), the output section (50) comprising a common input node (51) to which voltage controlled input terminals (g01, g0N) of said current mirror output transistors (M01, M0N) are connected. The voltage to current converter (V/I_Conv) comprises a low-pass filter (30) having an input node (31) connected to said voltage controlled input terminal (g0E) of the current mirror input transistor (M0E) and an output node (33) connected to said common input node (51).

Abstract translation: 公开了一种低噪声参考电压分配电路（10），其包括适于接收用于提供多个输出参考电流（I1，...）的输入参考电压（VR）的多输出电压 - 电流转换器（V / I_Conv）。 ...，IN）在适于连接到所述参考电压分配电路（10）的相应接收电路（LCR1，LCRN）处被转换成多个局部参考电压（V01，V0N）。 多输出电压到电流转换器（V / I_Conv）包括： - 适于基于所述输入参考电压（VR）产生参考电流（I0）的输入部分（20），所述输入部分（20）包括 具有电压控制输入端（g0E）的电流镜输入晶体管（M0E）; - 输出部分（50），包括多个电流镜输出晶体管（M01，M0N），每个电流镜输出晶体管适于提供所述多个参考电流（I1，...，IN）的相应的输出参考电流，每个所述电流镜 输出晶体管（M01，M0N），包括电压控制输入端（g01，...，g0N），输出部分（50）包括公共输入节点（51），所述输入端 电流镜输出晶体管（M01，M0N）连接。 电压 - 电流转换器（V / I_Conv）包括具有连接到电流镜输入晶体管（M0E）的所述电压控制输入端子（g0E）的输入节点（31）的低通滤波器（30）和输出节点 33）连接到所述公共输入节点（51）。