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公开(公告)号：JPH09167955A
公开(公告)日：1997-06-24
申请号：JP12966396
申请日：1996-05-24
Applicant: SGS THOMSON MICROELECTRONICS , CONS RIC MICROELETTRONICA
Inventor： GOLA ALBERTO , LEONE VIA TERRAZZANO , FUCILI GIONA , MILAZZO PATRIZIA
IPC: H03K17/00 , H03K17/082 , H03K19/00 , H03K19/003 , H03K19/0175 , H04L25/02
Abstract: PROBLEM TO BE SOLVED: To provide the detection and protection circuit for occurrence of a short-circuit for a digital output stage. SOLUTION: The detection and protection circuit for occurrence of a short- circuit for a digital output stage is provided and the circuit has an exclusive OR logic gate circuit EX1 with a 1st input terminal connecting to a signal input circuit (IN) and an output terminal connecting to an input terminal of a signal level shifter B. An exclusive OR 2nd logic gate circuit EX2 has a 1st input terminal connecting to the input node IN and a 2nd input terminal connecting to an output terminal OUT of the output stage B via an inverter circuit INI. A 2nd input terminal of the 1st logic gate circuit is connected to an output terminal of the 2nd logic gate circuit via a comparator circuit SCH1 and delay circuit means consisting of C, R, D.
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公开(公告)号：DE69522097T2
公开(公告)日：2002-04-18
申请号：DE69522097
申请日：1995-05-31
Applicant: ST MICROELECTRONICS SRL , CONS RIC MICROELETTRONICA
Inventor： GOLA ALBERTO , LEONE , FUCILI GIONA , MILAZZO PATRIZIA
IPC: H03K17/00 , H03K17/082 , H03K19/00 , H03K19/003 , H03K19/0175 , H04L25/02
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公开(公告)号：DE69522097D1
公开(公告)日：2001-09-13
申请号：DE69522097
申请日：1995-05-31
Applicant: ST MICROELECTRONICS SRL , CONS RIC MICROELETTRONICA
Inventor： GOLA ALBERTO , LEONE , FUCILI GIONA , MILAZZO PATRIZIA
IPC: H03K17/00 , H03K17/082 , H03K19/00 , H03K19/003 , H03K19/0175 , H04L25/02
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公开(公告)号：DE69320622T2
公开(公告)日：1999-01-14
申请号：DE69320622
申请日：1993-06-21
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： FUCILI GIONA
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公开(公告)号：DE69306764D1
公开(公告)日：1997-01-30
申请号：DE69306764
申请日：1993-05-31
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： NESSI MAURIZIO , FUCILI GIONA
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Patent Agency Ranking
公开(公告)号：ITVA960022D0
公开(公告)日：1996-10-24
申请号：ITVA960022
申请日：1996-10-24
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： NESSI MAURIZIO , CASTELLO RINALDO , FUCILI GIONA , LEONE MARCELLO , ROSSI ANNAMARIA
Abstract: A digital-to-analog converter includes a potentiometric string suitable for realizing a relatively high number of bits that significantly reduces the silicon area requirement and simplifies mismatch compensation. The structure includes a first resistance string to realize a first DAC to convert a first number of most significative bits, and a second potentiometric string functionally connected in cascade to the first, but realized with MOS transistors. The structure of the invention allows the coupling of the two DACs in cascade by exploiting the MOS transistors that form the second potentiometric string, that is, the second DAC, thus avoiding the use of operational switches or amplifiers which may provide error sources. Moreover, the structure of the invention lends itself to the implementation of efficient compensation circuits for integral and differential linearity errors.
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公开(公告)号：IT1289207B1
公开(公告)日：1998-09-29
申请号：ITVA960022
申请日：1996-10-24
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： NESSI MAURIZIO , CASTELLO RINALDO , FUCILI GIONA , LEONE MARCELLO , ROSSI ANNAMARIA
Abstract: A digital-to-analog converter includes a potentiometric string suitable for realizing a relatively high number of bits that significantly reduces the silicon area requirement and simplifies mismatch compensation. The structure includes a first resistance string to realize a first DAC to convert a first number of most significative bits, and a second potentiometric string functionally connected in cascade to the first, but realized with MOS transistors. The structure of the invention allows the coupling of the two DACs in cascade by exploiting the MOS transistors that form the second potentiometric string, that is, the second DAC, thus avoiding the use of operational switches or amplifiers which may provide error sources. Moreover, the structure of the invention lends itself to the implementation of efficient compensation circuits for integral and differential linearity errors.
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公开(公告)号：DE69306764T2
公开(公告)日：1997-04-10
申请号：DE69306764
申请日：1993-05-31
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： NESSI MAURIZIO , FUCILI GIONA
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公开(公告)号：DE69217209D1
公开(公告)日：1997-03-13
申请号：DE69217209
申请日：1992-06-26
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： GOLA ALBERTO , FUCILI GIONA
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公开(公告)号：DE69217209T2
公开(公告)日：1997-05-15
申请号：DE69217209
申请日：1992-06-26
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： GOLA ALBERTO , FUCILI GIONA
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