Patents Represented by Attorney James I. Comfort
  • Patent number: 4890052
    Abstract: A temperature constant Gm current reference circuit which is also independent of voltage across the circuit which includes a circuit for applying a substantially identical voltage to a semiconductor diode as well as to a branch circuit comprising a polysilicon resistor of predetermined doping level in series with plural unidirectional current carrying devices connected in parallel, preferably in the form of a multi-electrode transistor. From eight to twelve such unidirectional current carrying devices are required in the preferred embodiment.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: December 26, 1989
    Assignee: Texas Instruments Incorporated
    Inventor: James R. Hellums