1
Roy A Hastings, Todd M Neale, Brad Whitney: Programmable mixed-mode integrated circuit architecture. Texas Instruments Incorporated, W Daniel Swayze Jr, W James Brady III, Richard L Donaldson, October 8, 1996: US05563526 (267 worldwide citation)

A programmable mixed-mode circuit (180) has both digital (215,217) and analog (120,120',120") circuit portions. The digital portion (215,217) is provided by programmable digital logic. The analog portion (120,120',120") has a variety of analog circuits, including voltage references (218), high-speed ...


2
Joseph Nodar, Todd M Neale, Douglas R Johnson: Single supply operational amplifier and charge pump device. Texas Instruments Incorporated, Wade James Brady III, Richard L Donaldson, February 22, 1994: US05289137 (71 worldwide citation)

An integrated circuit device (10) has an operational amplifier (12) and a charge pump (14) for creating a negative voltage level -Vcc. The operational amplifier (12) preferably has various sub-components. In particular, a bias generator (36) is included and connected to a neutral voltage level (31) ...


3
Frank L Thiel, Todd M Neale, Baoson Nguyen, Fernando D Carvajal: Ultra-low drop-out monolithic voltage regulator. Texas Instruments Incorporated, Alan K Stewart, Richard L Donaldson, William E Hiller, April 29, 1997: US05625278 (28 worldwide citation)

The voltage regulator circuit contains a MOS transistor 12 connected between a voltage supply line 22 and an output line 30. The MOS transistor 12 provides a stable voltage on the output line 30 independent of voltage transients on the voltage supply line 22 and independent of current transients on ...


4
Dean A Wallace, Brad P Whitney, Todd M Neale, Mark E Granahan: Method and apparatus for non-linear transmission line termination. Texas Instruments Incorporated, W James Brady III, Richard L Donaldson, October 3, 1995: US05455523 (10 worldwide citation)

A non-linear transmission line terminator (10) is provided in which voltages appearing on a transmission line are sensed. If the voltage level sensed is equal to a predetermined voltage, the non-linear transmission line terminator (10) couples a reference voltage to the transmission line. If the sen ...


5
Todd M Neale, Brad P Whitney, Mark E Granahan: Fixed voltage virtual ground generator for single supply analog systems. Texas Instruments Incorporated, Mark E Courtney, Richard L Donaldson, January 18, 1994: US05280235 (9 worldwide citation)

A method and apparatus for a circuit physically realizing a virtual ground function and having improved accuracy and stability is described. A stable bias current source is coupled to a bandgap reference generator and resistances to produce a virtual ground voltage of a precise value, this voltage i ...


6
Todd M Neale, Brad P Whitney, Mark E Granahan: Rail splitting virtual ground generator for single supply systems. Texas Instruments Incorporated, Mark E Courtney, Richard L Donaldson, March 1, 1994: US05291121 (6 worldwide citation)

A method and apparatus for a circuit physically realizing a virtual ground function producing a virtual ground voltage halfway between the supply and common voltages and having improved accuracy and stability is described. A stable bias current source is coupled to a precision resistor voltage divid ...