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Class Information
Number: 330/252
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier
Description: Subject matter including an amplifier having two similar input circuits so connected that they respond to the difference between two voltages or currents, but effectively suppress like voltages or currents.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459975 |
Baseband filter start-up circuit |
Dec. 2, 2008 |
| 7442913 |
Photocurrent amplifier circuit and optical pick-up device |
Oct. 28, 2008 |
| 7439776 |
Technique to increase the speed of a peak detector |
Oct. 21, 2008 |
| 7436261 |
Operational amplifier |
Oct. 14, 2008 |
| 7425865 |
Differential cascode amplifier |
Sep. 16, 2008 |
| 7423485 |
Differential circuit with improved linearity |
Sep. 9, 2008 |
| 7420497 |
Low offset flash analog-to-digital converter |
Sep. 2, 2008 |
| 7418213 |
Transimpedance amplifier with integrated filtering and reduced parasitic capacitance |
Aug. 26, 2008 |
| 7414441 |
Output buffer circuit |
Aug. 19, 2008 |
| 7414456 |
Constant ratio current source |
Aug. 19, 2008 |
| 7415286 |
Gain boosting for local oscillation distribution circuitry |
Aug. 19, 2008 |
| 7411451 |
Class AB folded cascode stage and method for low noise, low power, low-offset operational amplifier |
Aug. 12, 2008 |
| 7405625 |
Common-mode control structures and signal converter systems for use therewith |
Jul. 29, 2008 |
| 7389087 |
Adaptive radio transceiver with filtering |
Jun. 17, 2008 |
| 7385448 |
Circuitry for adaptively generating and using a reference voltage |
Jun. 10, 2008 |
| 7382198 |
Differential amplifier circuitry formed on semiconductor substrate with rewiring technique |
Jun. 3, 2008 |
| 7382196 |
UHF active antenna amplifier for digital video broadcast (DVB) receiver and related DVB device |
Jun. 3, 2008 |
| 7372328 |
Amplification circuit for driving a laser signal |
May. 13, 2008 |
| 7358777 |
Current feedback amplifiers |
Apr. 15, 2008 |
| 7358796 |
Input circuit for receiving a variable voltage input signal and method |
Apr. 15, 2008 |
| 7349681 |
Self-biased high-speed receiver |
Mar. 25, 2008 |
| 7345545 |
Enhancement mode transceiver and switched gain amplifier integrated circuit |
Mar. 18, 2008 |
| 7339432 |
Variable gain amplifier and differential amplifier |
Mar. 4, 2008 |
| 7339428 |
Dual op amp IC with single low noise op amp configuration |
Mar. 4, 2008 |
| 7339421 |
Differential circuit and receiver with same |
Mar. 4, 2008 |
| 7336126 |
Subtractor circuit and power detector arrangement having that subtractor circuit |
Feb. 26, 2008 |
| 7298182 |
Comparator using differential amplifier with reduced current consumption |
Nov. 20, 2007 |
| 7288990 |
Reference buffer with dynamic current control |
Oct. 30, 2007 |
| 7286013 |
Coupled-inductance differential amplifier |
Oct. 23, 2007 |
| 7283596 |
PAM-4 data slicer having symmetrical offset |
Oct. 16, 2007 |
| 7282993 |
Frequency characteristics-variable amplifying circuit and semiconductor integrated circuit device |
Oct. 16, 2007 |
| 7271652 |
Differential amplifier and operational amplifier |
Sep. 18, 2007 |
| 7259624 |
Low noise AC coupled amplifier with low band-pass corner and low power |
Aug. 21, 2007 |
| 7253391 |
Optical sensor device and electronic apparatus |
Aug. 7, 2007 |
| 7250791 |
Current feedback amplifiers |
Jul. 31, 2007 |
| 7233772 |
Adaptive radio transceiver with filtering |
Jun. 19, 2007 |
| 7233201 |
Single-ended pseudo-differential output driver |
Jun. 19, 2007 |
| 7230989 |
System and method for processing digital visual interface communication data signals and display data channel communication signals over a transmission line |
Jun. 12, 2007 |
| 7221224 |
Differential amplifier circuit |
May. 22, 2007 |
| 7218174 |
Delay circuit and method therefor |
May. 15, 2007 |
| 7215194 |
Extended bandwidth amplifier and oscillator using positive current feedback through inductive load |
May. 8, 2007 |
| 7212071 |
Techniques to lower drive impedance and provide reduced DC offset |
May. 1, 2007 |
| 7205836 |
SiGe differential cascode amplifier with miller effect resonator |
Apr. 17, 2007 |
| 7202738 |
Accurate voltage to current converters for rail-sensing current-feedback instrumentation amplifiers |
Apr. 10, 2007 |
| 7199659 |
Non-match power amplifier and method for increased output 1 dB compression point |
Apr. 3, 2007 |
| 7196585 |
Fast-response current limiting |
Mar. 27, 2007 |
| 7193463 |
Driver circuit |
Mar. 20, 2007 |
| 7183851 |
Differential dual port current conveyor circuit |
Feb. 27, 2007 |
| 7180371 |
Input amplifier with improved power supply rejection |
Feb. 20, 2007 |
| 7180369 |
Baseband filter start-up circuit |
Feb. 20, 2007 |
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