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6 records (took 0.022 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE602006009476D1

    公开(公告)日：2009-11-12

    申请号：DE602006009476

    申请日：2006-02-28

    Applicant: ST MICROELECTRONICS SRL

    Inventor： VIMERCATI DANIELE ,  BOLANDRINA EFREM ,  GAROFALO PIERGUIDO

    IPC: G11C5/14 ,  G05F3/20

    Abstract: A method is described for generating a controlled current by means of a Band Gap circuitry (10) comprising the steps of: - supplying on a Band Gap node (BGAP), a Band Gap voltage signal that is stable in temperature and power supply; - driving a controlled current generator (2) by means of this Band Gap voltage signal; and mirroring the controlled current signal generated on an output terminal of the Band Gap circuitry; Advantageously according to the invention, the method further comprises, after the driving step, a step of locally suppressing a disturb of the controlled current signal generated by the controlled current generator (2) by means of a disturb suppression circuit (11) connected to said Band Gap node acting on said Band Gap voltage signal. A disturb suppression circuit and a Band Gap circuitry for the generation of a controlled current signal are also described.

    2.
    发明专利
    未知

    公开(公告)号：DE60307606D1

    公开(公告)日：2006-09-28

    申请号：DE60307606

    申请日：2003-06-04

    Applicant: ST MICROELECTRONICS SRL

    Inventor： SCHIPPERS STEFAN ,  VIMERCATI DANIELE ,  BOLANDRINA EFREM

    IPC: G11C7/14 ,  G11C16/28

    Abstract: A method is described for generating a reference current (Iref) for sense amplifiers (11) connected to cells (12) of a memory matrix (1) comprising the steps of: generating a first reference current analogue signal (REF) through a reference cell (14). Advantageously according to the invention, the method further comprises the steps of: performing an Analog-to-Digital conversion of the first analogue signal (REF) into a reference current digital signal (REF_BITÄ3:0Ü); sending the digital signal (REF_BITÄ3:0Ü) on a connection line (43) to the sense amplifiers (11); and performing a Digital-to-Analog conversion of the digital signal (REF_BITÄ3:0Ü) into a second reference current analogue signal (REF1) to be applied as reference current (Iref) to the sense amplifiers (11). The invention also relates to a reference current generator effective to implement this method.

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