Patent application number | Description | Published |
20080258826 | Low Voltage Operational Transconductance Amplifier Circuits - Circuits (FIG. | 10-23-2008 |
20090015329 | Low Voltage Track and Hold Circuits - Circuits that operate with power supplies of less than 1 Volt are presented. More particularly, circuits that operate with supply voltages near or lower than the threshold voltage of the transistors in those circuits are presented. Various circuits and embodiments such as operational transconductance amplifiers, biasing circuits, integrators, continuous-time sigma delta modulators, track-and-hold circuits, and others are presented. The techniques and circuits can be used in a wide range of applications and various transistors from metal-oxide-semiconductor to bipolar junction transistors may implement the techniques presented herein. | 01-15-2009 |
20090303094 | LOW VOLTAGE DIGITAL TO ANALOG CONVERTER, COMPARATOR AND SIGMA-DELTA MODULATOR CIRCUITS - Circuits that operate with power supplies of less than 1 Volt are presented. More particularly, circuits that operate with supply voltages near or lower than the threshold voltage of the transistors in those circuits are presented. Various circuits embodiments such as operational transconductance amplifiers ( | 12-10-2009 |
20100019300 | MULTILAYER INTEGRATED CIRCUIT HAVING AN INDUCTOR IN STACKED ARRANGEMENT WITH A DISTRIBUTED CAPACITOR - Some embodiments provide a multilayer integrated circuit, including: a semiconductor substrate including a plurality of channels extending into the substrate from a surface of the substrate; a distributed capacitor including a plurality of gates formed on the surface of the substrate over the channels, and further including an insulator between the gates and the channels, the gates being spaced apart along the surface of the substrate; an interconnect layer formed over the distributed capacitor, the interconnect layer including a plurality of conductors, at least a first conductor being connected to at least some of the gates and at least a second conductor being connected to at least some of the channels; and an inductor formed over the interconnect layer, the inductor including at least conductor arranged on a layer. | 01-28-2010 |
20130088262 | LOW VOLTAGE COMPARATOR CIRCUITS - Circuits that operate with power supplies of less than 1 Volt are presented. More particularly, circuits that operate with supply voltages near or lower than the threshold voltage of the transistors in those circuits are presented. Various circuits and embodiments such as operational transconductance amplifiers, biasing circuits, integrators, continuous-time sigma delta modulators, track-and-bold circuits, and others are presented. The techniques and circuits can be used in a wide range of applications and various transistors from metal-oxide-semiconductor to bipolar junction transistors may implement the techniques presented herein. | 04-11-2013 |
20130156076 | Circuits and Methods for a Combined Phase Detector - Circuits and methods for a combined phase detector are provided. In some embodiments, circuits for a combined phase detector are provided, the circuits comprising: a tri-state phase frequency detector and charge pump that receives a reference signal and a first input signal, and that produces a first output signal; and a sub-sampling phase detector that receives the reference signal and a second input signal, and that outputs a second output signal, wherein the first output signal and the second output signal are coupled together. | 06-20-2013 |
20150043616 | Circuits and Methods for Pulse Radio Receivers - Circuits and methods comprising: a radio frequency amplifier that powers off in response to an enable signal; a demodulator that outputs an RZ signal; an all-digital clock and data recovery circuit comprising: a phase detector that includes a tri-state phase frequency detector for use when in an acquisition mode and a Hogge phase detector for use when in a communication mode, that receives the RZ signal, and that outputs a phase detector output from the tri-state phase frequency detector when in the acquisition mode and from the Hogge phase detector when in the communication mode, a loop filter that receives the phase detector output from the phase detector and produces a loop filter output that is the sum of a proportional path of the loop filter and an integral path of the loop filter, and a numerical controlled oscillator that receives the loop filter output and produces the enable signal. | 02-12-2015 |
20150180521 | CIRCUITS AND METHODS FOR PERFORMING HARMONIC REJECTION MIXING - Circuits and methods for performing harmonic rejection mixing are provided. In some embodiments, the circuit comprises: a first amplifier that amplifies a received signal at a first gain; a second amplifier that amplifies the received signal at a fraction of the first gain; a mixer that receives a local oscillator signal having a first fundamental frequency and the first amplifier output, and outputs a first mixed signal; a second mixer that receives a second local oscillator signal having a fundamental frequency that is a multiple of the first fundamental frequency and the second amplifier output, and outputs a second mixed signal; and an output stage that receives the first and second mixed signals and outputs a sum of the first and second mixed signals. | 06-25-2015 |