公开(公告)号：FR2910168B1

公开(公告)日：2009-03-20

申请号：FR0610939

申请日：2006-12-14

Applicant: ST MICROELECTRONICS SA

Inventor： BARASINSKI SEBASTIEN ,  JACQUET FRANCOIS ,  SABUT MARC

IPC: G11C11/41 ,  G11C7/12

Abstract: A memory device of SRAM type has a memory plan constituted by base memory cells organized in lines and in columns. Each cell of a column is connected between two bit lines which are precharged during a reading operation. Circuitry is provided for generating a precharge voltage of the bit lines which is less than a nominal supply voltage of the device.

公开(公告)号：FR2832579A1

公开(公告)日：2003-05-23

申请号：FR0114921

申请日：2001-11-19

Applicant: ST MICROELECTRONICS SA

Inventor： VAN ZANTEN FRANCOIS ,  SABUT MARC ,  RIBAS RAYMOND

IPC: H04N5/18 ,  H04N5/44

Abstract: A video input stage calibration circuit has a differential output stage with variable gain (206) and inverter (106) operational amplifiers creating out of phase voltages about the common level as input to the analogue to digital converter (207) and digital control (260). Includes an Independent claim for the use of Miller gain stages in CMOS (Complementary Metal Oxide Silicon) and PMOS (P Metal Oxide Silicon) technology in the differential converter.

公开(公告)号：FR2818466B1

公开(公告)日：2003-04-04

申请号：FR0016400

申请日：2000-12-15

Applicant: ST MICROELECTRONICS SA

Inventor： MOURET MICHEL ,  SABUT MARC ,  VAN ZANTEN FRANCOIS

IPC: H03G7/08 ,  H03G7/06 ,  H03G3/00 ,  H03F1/42 ,  H03F1/32

Abstract: A variable-gain amplifier with a differential input and differential output, including an attenuator block, receiving an input voltage and providing, on several outputs, voltages, each of which is equal to the attenuated input voltage; differential transconductor elements, each having a first input connected to a respective output of the attenuator block, and generating first and second positive currents and first and second negative currents; a current source assembly adapted to controlling the transconductance of each differential transconductor element according to an analog control signal; and an output block converting first and second input currents into a differential output voltage and providing a second input of each differential transconductor element with a feedback voltage depending on the output voltage.

公开(公告)号：DE602007004370D1

公开(公告)日：2010-03-11

申请号：DE602007004370

申请日：2007-03-14

Applicant: ST MICROELECTRONICS SA

Inventor： GICQUEL HUGO ,  MORO JEAN-LUC ,  SABUT MARC

IPC: G05F1/56 ,  G05F3/26 ,  H03F3/345 ,  H03F3/347

公开(公告)号：FR2868626B1

公开(公告)日：2006-06-23

申请号：FR0450641

申请日：2004-03-31

Applicant: ST MICROELECTRONICS SA

Inventor： GATTI PAOLO ,  SABUT MARC

IPC: H03F3/45

Abstract: A differential amplifier having a first and second output terminals and receiving an input signal at an input terminal. The amplifier comprises a first amplifier having a first input connected to the input terminal, a second input and a first output connected together to the first output terminal, and a second output connected to the second output terminal, the first amplifier reproducing the input signal on the first output. The amplifier comprises a second amplifier having a first input receiving a reference signal and a second input connected to the output terminals by resistive elements and controlling the provision by the first amplifier on the second output of a signal such that the signals received at the first and second inputs of the second amplifier are equal.

公开(公告)号：FR2832519B1

公开(公告)日：2004-02-20

申请号：FR0114926

申请日：2001-11-19

Applicant: ST MICROELECTRONICS SA

Inventor： VAN ZANTEN FRANCOIS ,  SABUT MARC ,  RIBAS RAYMOND

IPC: G05F3/26 ,  H03F3/189 ,  H03F1/42

Abstract: A mirroring circuit operating at high frequencies is provided. The mirroring circuit includes a first branch having a first transistor in series with a first resistor, a second branch having a second transistor in series with a second resistor, and a servo circuit for controlling current flowing in the first branch and the second branch. The servo circuit includes a third transistor configured as a diode, a source of the third transistor coupled to a source of the first transistor, a fourth transistor configured as a shift lever, a source of the fourth transistor coupled to ground via a third resistor, a fifth transistor configured as a diode, a source of the fifth transistor coupled to a source of the second transistor, and a sixth transistor configured as a shift lever, a source of the sixth transistor coupled to ground via the third resistor.

公开(公告)号：FR2817408B1

公开(公告)日：2003-03-21

申请号：FR0015522

申请日：2000-11-30

Applicant: ST MICROELECTRONICS SA

Inventor： MOURET MICHEL ,  SABUT MARC ,  VAN ZANTEN FRANCOIS

IPC: H03G7/06 ,  H03F3/45 ,  H03G3/30

Abstract: A controllable assembly of current sources includes several first output terminals, with a first transistor associated with each first output terminal, the current on each first output terminal depending on the current flowing through the first transistor, and a circuit configured, in response to a predetermined variation of a control voltage, to successively progressively turn on, then progressively turn off, each first transistor. The first transistors are MOS transistors, and each first output terminal is associated with a current mirror formed of MOS transistors, the current mirror providing to the first output terminal a current depending on the current flowing through the first transistor.

公开(公告)号：DE60134495D1

公开(公告)日：2008-07-31

申请号：DE60134495

申请日：2001-11-29

Applicant: ST MICROELECTRONICS SA

Inventor： MOURET MICHEL ,  SABUT MARC ,  VAN ZANTEN FRANCOIS

IPC: H03G7/06

Abstract: A controllable assembly of current sources includes several first output terminals, with a first transistor associated with each first output terminal, the current on each first output terminal depending on the current flowing through the first transistor, and a circuit configured, in response to a predetermined variation of a control voltage, to successively progressively turn on, then progressively turn off, each first transistor. The first transistors are MOS transistors, and each first output terminal is associated with a current mirror formed of MOS transistors, the current mirror providing to the first output terminal a current depending on the current flowing through the first transistor.

公开(公告)号：DE60127724D1

公开(公告)日：2007-05-16

申请号：DE60127724

申请日：2001-12-14

Applicant: ST MICROELECTRONICS SA

Inventor： MOURET MICHEL ,  SABUT MARC ,  VAN ZANTEN FRANCOIS

IPC: H03G1/00 ,  H03G7/08

Abstract: A variable-gain amplifier with a differential input and differential output, including an attenuator block, receiving an input voltage and providing, on several outputs, voltages, each of which is equal to the attenuated input voltage; differential transconductor elements, each having a first input connected to a respective output of the attenuator block, and generating first and second positive currents and first and second negative currents; a current source assembly adapted to controlling the transconductance of each differential transconductor element according to an analog control signal; and an output block converting first and second input currents into a differential output voltage and providing a second input of each differential transconductor element with a feedback voltage depending on the output voltage.

公开(公告)号：FR2881236B1

公开(公告)日：2007-04-06

申请号：FR0550227

申请日：2005-01-26

Applicant: ST MICROELECTRONICS SA

Inventor： SABUT MARC ,  MORO JEAN LUC

IPC: G05F3/26

Abstract: The circuit has a current source (31) that connects a gate of a P-channel metal oxide semiconductor (MOS) transistor (MP0) to a voltage application terminal (2). A current source (22) connects a drain of a P-channel MOS transistor (MP1) to the ground (3). The transistor (MP0) connects the source of the transistor (MP1) to the terminal and has its gate connected to drain of the transistor (MP1) by an N-channel MOS transistor (MN0).