219315 ⎘
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Dc amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only with field-effect devices
AMPLIFIER
#2INSTRUMENTATION AMPLIFIER AND SIGNAL DETECTION SYSTEM
#3SAMPLED-DATA RECEIVER WITH CHOPPER STABILIZATION
#4CHOPPER-STABILIZED AMPLIFIER
#5ENVELOPE TRACKING INTEGRATED CIRCUIT OPERABLE ACROSS WIDE MODULATION BANDWIDTH
#6Voltage Generation Circuitry with Reduced Settling Time
#7Amplifier circuits and method for operating amplifier circuits
#8CHOPPER STABILIZED AMPLIFIER
#9RATIOMETRIC SENSOR CIRCUIT
#10REGULATED SUPPLY FOR IMPROVED SINGLE-ENDED CHOPPING PERFORMANCE
#11Input current trim for chopper operational amplifier
#12HIGH-EFFICIENCY AMPLIFIER ARCHITECTURE WITH DE-GAIN STAGE
#13Fast start up control circuit
#14Amplifier circuits and method for operating amplifier circuits
#15Differential operational transconductance amplifier for chopper-stabilized amplification
#16Amplification interface, and corresponding measurement system and method for calibrating an amplification interface
#17Sensing circuit and a source driver of a display device
#18Amplifier circuit
#19Amplification interface, and corresponding measurement system and method for calibrating an amplification interface
#20Bias switch circuit for compensating frontend offset of high accuracy measurement circuit
#21Audio amplifier having multiple sigma-delta modulators to drive an output load
#22AC-coupled chopper signal for a high-impedance buffer
#23Variable output resistance in a playback path with open-loop pulse-width modulation driver
#24Magnetic operational amplifier
#25Amplifier flicker noise and offset mitigating systems and methods
#26Bidirectional current sense amplifier
#27Differential amplifier with modified common mode rejection, and to a circuit with an improved common mode rejection ratio
#28Reducing offset from an amplifier output without a low pass filter
#29Power supplying apparatus for neural activity recorder reducing common-mode signal applied to electrodes connected to the neural activity recorder
#30Single-ended amplifier circuit with improved chopper configuration
#31Fast settling capacitive gain amplifier circuit
#32Fast settling capacitive gain amplifier circuit
#33Amplifiers
#34Active electrode having a closed-loop unit-gain amplifier with chopper modulation
#35Low noise amplifier circuit
#36Switched-capacitor bandgap reference circuit using chopping technique
#37Chopper stabilized amplifier
#38Chopper stabilized amplifier with synchronous switched capacitor noise filtering
#39Pseudo-random chopper amplifier
#40Zero drift, limitless and adjustable reference voltage generation
#41Apparatus and methods for chopping ripple reduction in amplifiers
#42Semiconductor integrated circuit device
#43Amplifier circuit
#44Hot-swap current-sensing system
#45Fixed gain amplifier circuit
#46Detecting device and electronic apparatus
#47Differential amplifier and display driver including the same
#48Power-efficient chopper amplifier
#49Fully capacitive coupled input choppers
#50Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier
#51Operational amplifier
#52Biosignal amplifying circuit
#53Apparatus and methods for chopper amplifiers
#54Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier
#55Chopper amplifier
#56Chopper mixer telemetry circuit
#57Chopper amplifier
#58High side current sense amplifier
#59Fully capacitive coupled input choppers
#60Sensor device
#61ADC chopping transconductor having two pairs of cascode transistors
#62Differential chopper comparator and A/D converter including the same
#63Front end and high frequency receiver having quadrature low noise amplifier
#64Chopping technique for continuous time sigma-delta ADCs without Q-noise folding
#65Method for processing sensor signals subject to an offset and sensor arrangement designed to carry out the method
#66Chopper stabilized amplifier
#67Current generator
#68System and method for generating a reference voltage
#69High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection
#70Method and system for transitioning between operation states in an output system
#71Simultaneous filtering and compensation circuitry and method in chopping amplifier
#72BIAS SWITCHING CIRCUIT
#73Chopper mixer telemetry circuit
#74Digital isolator with communication across an isolation barrier
#75Chopper-stabilized instrumentation amplifier for wireless telemetry
#76Noise reduction system and method for audio switching amplifier
#77Low noise, low dropout regulators
#78Fully differential sensing apparatus and input common-mode feedback circuit thereof
#79Operational amplifier and related noise separation method thereof
#80Operational amplifier with zero offset
#81Differential amplifier circuit and semiconductor device
#82Chopper amplifier circuit apparatus operable at low voltage utilizing switched operational amplifier
#83Current-mode instrumentation amplifier
#84Current-mode instrumentation amplifier gain error correction circuitry
#85Precision chopper-stabilized current mirror
#86High common mode rejection ratio (CMRR) current monitoring circuit using floating supplies
#87Signal process circuit capable of being externally coupled to multiple types of amplifier circuits
#88Cross-fading in dual-path pulse width modulation system
#89Peak detector and operational amplifier circuit therein
#90Filter-less chopping for offset cancellation
#91Chopper stabilized amplifier with synchronous switched capacitor noise filtering