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公开(公告)号:DE3881948T2
公开(公告)日:1994-01-20
申请号:DE3881948
申请日:1988-03-08
Applicant: IBM
Inventor: LOBB KENNETH GEORGE , SCHUELKE BRIAN ANDREW , SCHMERBECK TIMOTHY JOSEPH , SUTTON MANNING OLSEN
IPC: H03F1/30 , H03F3/34 , H03F3/343 , H03K19/0175
Abstract: A circuit (100) translates an input signal (EIN) about an input reference voltage (E1) to an output signal (EOUT) referenced to a different voltage (2). The input signal may be scaled, and multiple inputs may be scaled independently and summed. Shift networks transfer the input signal across a resistor (R1) on the input of a current mirror; the the output signal appears across a resistor (R3) in an output of the mirror.
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公开(公告)号:DE3881948D1
公开(公告)日:1993-07-29
申请号:DE3881948
申请日:1988-03-08
Applicant: IBM
Inventor: LOBB KENNETH GEORGE , SCHUELKE BRIAN ANDREW , SCHMERBECK TIMOTHY JOSEPH , SUTTON MANNING OLSEN
IPC: H03F1/30 , H03F3/34 , H03F3/343 , H03K19/0175
Abstract: A circuit (100) translates an input signal (EIN) about an input reference voltage (E1) to an output signal (EOUT) referenced to a different voltage (2). The input signal may be scaled, and multiple inputs may be scaled independently and summed. Shift networks transfer the input signal across a resistor (R1) on the input of a current mirror; the the output signal appears across a resistor (R3) in an output of the mirror.
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公开(公告)号:DE69026857T2
公开(公告)日:1996-11-21
申请号:DE69026857
申请日:1990-03-12
Applicant: IBM
Inventor: BUCHHOLTZ TIMOTHY CLYDE , GRUVER MICHAEL ROBERT , RICHETTA RAYMOND ALAN , SCHMERBECK TIMOTHY JOSEPH
Abstract: A differential analog input signal 101 is level-shifted and converted to single-ended form 131. Its average value is compared to the midpoint of a set of reference voltages. A control signal proportional to the average value forces the average of the single-ended signal toward the midpoint voltage. The single-ended signal is converted to uncoded digital form by a parallel comparator bank 170, and is then converted to coded digital form.
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公开(公告)号:DE69026857D1
公开(公告)日:1996-06-13
申请号:DE69026857
申请日:1990-03-12
Applicant: IBM
Inventor: BUCHHOLTZ TIMOTHY CLYDE , GRUVER MICHAEL ROBERT , RICHETTA RAYMOND ALAN , SCHMERBECK TIMOTHY JOSEPH
Abstract: A differential analog input signal 101 is level-shifted and converted to single-ended form 131. Its average value is compared to the midpoint of a set of reference voltages. A control signal proportional to the average value forces the average of the single-ended signal toward the midpoint voltage. The single-ended signal is converted to uncoded digital form by a parallel comparator bank 170, and is then converted to coded digital form.
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