Voltage generator circuit having compensation for process and temperature variation
 An on-chip voltage generator circuit is disclosed having an output voltage which is reduced by a predetermined amount from a supply voltage. The output voltage is proportional to the gate-to-source voltages of two complementary transistors and varies with temperature and processing in a similar manner with digital circuitry on the chip for which the output voltage may be used to operate. A current source is used to provide a known current to the two complementary transistors and a buffer is used to provide a low impedance output. 
Motorola, Inc.
G
G05F
inventional
Richard W. Roger A.
Ulmer Whatley