Patent ID: 6353357
Filing Date: 2002-03-05
Classification: H03K

Abstract:
An integrated circuit, comprising:first transistors of a first conductivity type having a first threshold potential and substrate terminals for receiving a first substrate potential; second transistors of a second conductivity type having a second threshold potential and substrate terminals for receiving a second substrate potential; a first control unit connected to said first transistors for controlling the first threshold potential, said first control unit having a first input for a required value of the first threshold potential, a second input for an actual value of the first threshold potential, and an output connected to said substrate terminals of said first transistors; and a second control unit connected to said second transistors for controlling the second threshold potential, said second control unit having a first input receiving a required value of the second threshold potential, a second input receiving an actual value of the second threshold potential, and an output connected to said substrate terminals of said second transistors, and the required value of the second threshold potential is proportional to the actual value of the first threshold potential of said first transistors.