公开(公告)号：FR2295646A1

公开(公告)日：1976-07-16

申请号：FR7533886

申请日：1975-10-31

Applicant: IBM

Inventor： BUCKLEY FREDERICK III ,  CREAMER MALCOLM K JR ,  MILLER GERALD A ,  SCOTTO VINCENT A

IPC: H03K19/0185 ,  H03K5/02 ,  H03K17/687 ,  H03K19/017 ,  H03K19/08 ,  H03K19/0948

公开(公告)号：CA1047608A

公开(公告)日：1979-01-30

申请号：CA237242

申请日：1975-10-08

Applicant: IBM

Inventor： BUCKLEY FREDERICK III ,  CREAMER MALCOM K JR ,  MILLER GERALD A

IPC: H03K19/0185 ,  H03K5/02 ,  H03K17/687 ,  H03K19/017 ,  H03K19/08 ,  H03K19/0948 ,  H03K19/32

Abstract: CMOS DIGITAL CIRCUITS WITH RESISTIVE SHUNT FEEDBACK AMPLIFIER A negative shunt feedback amplifier is disclosed for connection to the output node of a complex complementary metal oxide semiconductor logic circuit to increase the performance and reduce the FET device size. A CMOS inverter is coupled to the amplifier to restore the logic levels and to form the logic output. A first embodiment of the invention uses a resistor feedback and a second embodiment of the invention uses parallel N-channel and P-channel FETs to form the feedback impedance. The circuit has application in environments where a logic function requires a large number of FET devices resulting in a large output node capacitance and, thereby slowing the logic speed, as for example in a large DOT-OR circuit or at each output of a FET memory array.