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Class Information
Number: 330/259
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having d.c. feedback bias control for stabilization
Description: Subject matter including a feedback circuit for direct currents for the purpose of operating point stabilization.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7439804 |
Amplifier with level shifting feedback network |
Oct. 21, 2008 |
| 7436262 |
Highly linear variable gain amplifier |
Oct. 14, 2008 |
| 7425868 |
Apparatus and method for canceling DC output offset |
Sep. 16, 2008 |
| 7408410 |
Apparatus for biasing a complementary metal-oxide semiconductor differential amplifier |
Aug. 5, 2008 |
| 7400195 |
Variable-gain differential amplifier |
Jul. 15, 2008 |
| 7391264 |
Amplifier |
Jun. 24, 2008 |
| 7372331 |
Receiver circuit |
May. 13, 2008 |
| 7356317 |
Adaptive-biased mixer |
Apr. 8, 2008 |
| 7345544 |
Method and apparatus for common mode control |
Mar. 18, 2008 |
| 7330075 |
Output impedance control circuit and control method thereof |
Feb. 12, 2008 |
| 7312658 |
Differential amplifier with two outputs and a single input of improved linearity |
Dec. 25, 2007 |
| 7312598 |
Capacitor free low drop out regulator |
Dec. 25, 2007 |
| 7298210 |
Fast settling, low noise, low offset operational amplifier and method |
Nov. 20, 2007 |
| 7279976 |
Differential amplifier with controlled common mode output voltage |
Oct. 9, 2007 |
| 7262663 |
Ultra high linearity amplifier |
Aug. 28, 2007 |
| 7262662 |
Operational amplifier |
Aug. 28, 2007 |
| 7259626 |
Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit |
Aug. 21, 2007 |
| 7259627 |
True differential microphone amplifier |
Aug. 21, 2007 |
| 7259616 |
Method for single-ended offset compensation of an operational amplifier |
Aug. 21, 2007 |
| 7253686 |
Differential amplifiers with enhanced gain and dynamic range |
Aug. 7, 2007 |
| 7239199 |
Amplifier calibration |
Jul. 3, 2007 |
| 7233203 |
Differential amplifier |
Jun. 19, 2007 |
| 7233209 |
Integrated preamplifier circuit for detecting a signal current from a photodiode |
Jun. 19, 2007 |
| 7227410 |
Differential output circuit with reduced differential output variation |
Jun. 5, 2007 |
| 7221217 |
Self-bias and digitally tunable conduction angle circuits for a differential RF non-linear power amplifier employing low-voltage transistors |
May. 22, 2007 |
| 7215198 |
Fully differential current-feedback CMOS/bipolar operational amplifier |
May. 8, 2007 |
| 7215200 |
High-linearity differential amplifier with flexible common-mode range |
May. 8, 2007 |
| 7209006 |
Differential amplifier with increased common mode loop gain at low frequencies |
Apr. 24, 2007 |
| 7196581 |
Amplifier switching control circuit and method for current shunt instrumentation amplifier having extended position and negative input common mode range |
Mar. 27, 2007 |
| 7193467 |
Differential amplifiers and methods of using same |
Mar. 20, 2007 |
| 7157971 |
Low-distortion differential circuit |
Jan. 2, 2007 |
| 7154335 |
Variable gain amplifier with direct current offset correction |
Dec. 26, 2006 |
| 7142057 |
System to accelerate settling of an amplifier |
Nov. 28, 2006 |
| 7132882 |
Amplifier having multiple offset-compensation paths and related systems and methods |
Nov. 7, 2006 |
| 7113016 |
Device for DC offset cancellation |
Sep. 26, 2006 |
| 7109798 |
Method and system for common mode feedback circuitry for RF buffers |
Sep. 19, 2006 |
| 7102437 |
Integrated circuit device |
Sep. 5, 2006 |
| 7091789 |
Output circuit |
Aug. 15, 2006 |
| 7088181 |
Method and apparatus for common mode control |
Aug. 8, 2006 |
| 7075348 |
Differential charge pump with common-mode feedback compensation |
Jul. 11, 2006 |
| 7061321 |
Low impedance read amplifier for magnetoresistive head |
Jun. 13, 2006 |
| 7058360 |
Method and system for stabilizing the performance variation of a radio frequency device |
Jun. 6, 2006 |
| 7039124 |
Apparatus and method for compensating for analog quadrature modulation error |
May. 2, 2006 |
| 7012463 |
Switched capacitor circuit with reduced common-mode variations |
Mar. 14, 2006 |
| 7005921 |
Common-mode feedback circuit |
Feb. 28, 2006 |
| 6998917 |
Common-mode feedback circuit and differential operational amplifier circuit having stable operation and low power consumption |
Feb. 14, 2006 |
| 6992526 |
Apparatus and method for DC offset reduction |
Jan. 31, 2006 |
| 6963245 |
System and method to accelerate settling of an amplifier |
Nov. 8, 2005 |
| 6956439 |
Transimpedance amplifier with controllable noise reduction |
Oct. 18, 2005 |
| 6952133 |
Low-distortion differential circuit |
Oct. 4, 2005 |
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