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Class Information
Number: 330/260
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having signal feedback means
Description: Subject matter wherein a portion of the electrical signal output energy is applied to the input of the amplifier.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6492871 |
Current feedback operational amplifier |
Dec. 10, 2002 |
| 6489847 |
Low distoration driving amplifier for integrated filters |
Dec. 3, 2002 |
| 6483384 |
High speed amplifier |
Nov. 19, 2002 |
| 6473253 |
Read channel with programmable bandwidth control |
Oct. 29, 2002 |
| 6437612 |
Inductor-less RF/IF CMOS buffer for 50.OMEGA. off-chip load driving |
Aug. 20, 2002 |
| 6433638 |
Fully balanced transimpedance amplifier for high speed and low voltage applications |
Aug. 13, 2002 |
| 6433635 |
Amplifier |
Aug. 13, 2002 |
| 6414548 |
Differential amplifier having two channels |
Jul. 2, 2002 |
| 6411163 |
Transconductance amplifier circuit |
Jun. 25, 2002 |
| 6411164 |
Precision low power operational amplifier with gain invariant bandwith |
Jun. 25, 2002 |
| 6400225 |
Differential difference amplifier for amplifying small signals close to zero volts |
Jun. 4, 2002 |
| 6369654 |
Semiconductor device |
Apr. 9, 2002 |
| 6366169 |
Fast rail-to-rail class AB output stage having stable output bias current and linear performance |
Apr. 2, 2002 |
| 6362682 |
Common-mode feedback circuit and method |
Mar. 26, 2002 |
| 6359510 |
Amplifier circuit |
Mar. 19, 2002 |
| 6346855 |
Amplifier arrangement |
Feb. 12, 2002 |
| 6337887 |
Burst receiving circuit and control method thereof |
Jan. 8, 2002 |
| 6320890 |
Laser driving circuit capable of stably controlling laser output |
Nov. 20, 2001 |
| 6304142 |
Variable transconductance amplifier |
Oct. 16, 2001 |
| 6300833 |
DC gain enhancement for operational amplifiers |
Oct. 9, 2001 |
| 6288604 |
CMOS amplifier providing automatic offset cancellation |
Sep. 11, 2001 |
| 6278321 |
Method and apparatus for an improved variable gain amplifier |
Aug. 21, 2001 |
| 6268734 |
Operational amplifier input offset voltage and input bias current test circuit |
Jul. 31, 2001 |
| 6259322 |
Current efficient, ultra low noise differential gain amplifier architecture |
Jul. 10, 2001 |
| 6222416 |
Signal amplifier circuit with symmetrical inputs and outputs |
Apr. 24, 2001 |
| 6215333 |
Comparator for a wide supply voltage range |
Apr. 10, 2001 |
| 6211730 |
Pre-amplifier circuit |
Apr. 3, 2001 |
| 6208199 |
Pulse amplifier with low duty cycle errors |
Mar. 27, 2001 |
| 6188282 |
Differential amplifier with reduced even order non-linearity and associated methods |
Feb. 13, 2001 |
| 6188280 |
Differential amplifier with gain linearization through transconductance compensation |
Feb. 13, 2001 |
| 6181207 |
Current amplifier having a low input impedance |
Jan. 30, 2001 |
| 6175276 |
Indirect emitter-coupling preamplifier for magneto-resistive heads with single-ended feedback |
Jan. 16, 2001 |
| 6169453 |
Error amplifier with a high common mode rejection |
Jan. 2, 2001 |
| 6163217 |
Operational amplifier |
Dec. 19, 2000 |
| 6160450 |
Self-biased, phantom-powered and feedback-stabilized amplifier for electret microphone |
Dec. 12, 2000 |
| 6150885 |
Transconductance amplifier with wideband noise filtering |
Nov. 21, 2000 |
| 6141169 |
System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier |
Oct. 31, 2000 |
| 6137359 |
Low-distortion high-frequency amplifier |
Oct. 24, 2000 |
| 6121818 |
Mixer using replica voltage-current converter |
Sep. 19, 2000 |
| 6118340 |
Low noise differential input, differential output amplifier and method |
Sep. 12, 2000 |
| 6114908 |
Bipolar impedance converter circuit |
Sep. 5, 2000 |
| 6107888 |
Method to equalize input currents to differential-to-single-ended amplifier configuration |
Aug. 22, 2000 |
| 6069523 |
Differential data driver |
May. 30, 2000 |
| 6052027 |
Wideband operational amplifier having a plurality of feedback loops |
Apr. 18, 2000 |
| 6052026 |
Linear gain controlled amplifier |
Apr. 18, 2000 |
| 6046875 |
Linear transconductance circuit having a large linear range |
Apr. 4, 2000 |
| 6037759 |
Voltage regulator capable of improving system response |
Mar. 14, 2000 |
| 6037834 |
Method and apparatus for automatic gain control with improved response time and stability |
Mar. 14, 2000 |
| 6031424 |
Differential amplifier with improved voltage gain using operational amplifiers to eliminate diode voltage drops |
Feb. 29, 2000 |
| 6014054 |
Differential amplifier circuit and load driving circuit incorporating the differential amplifier circuit |
Jan. 11, 2000 |
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