Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Highly linear high-speed transconductance amplifier for Gm-C filters










Image Number 2 for United States Patent #6566949.

A transconductance amplifier and method for improving the phase response and linearity. A differential amplifier circuit receives differential signals for amplification on respective bases of input bipolar transistors. The transistors amplify a small signal received on the based connections to produce an amplified output current. The differential amplifier circuit is connected to load impedances which form a cascode transconductance amplifier output stage. Feedback transistors provide a feedback voltage from the emitters of each of the different bipolar transistors to the base, improving the linearity of the differential amplifier. Phase compensation is provided by cross coupling through first and second capacitors a portion of each individual differential signal component to the base connections of the differential amplifier input transistor.








 
 
  Recently Added Patents
Methods and apparatus for ultrasonic cleaning
Imidazo[1,2-B]pyridazine and pyrazolo[1 .5-A]pyrimidine derivatives and their use as protein kinase inhibitors
Identification wristband
Liquid crystal display device and driving method thereof
Thermochromic microparticles, dispersions thereof, and manufacturing method thereof, as well as light-modulating coatings, light-modulating films and light-modulating inks
Sub-LUN input/output profiling for SSD devices
Compound semiconductor device and manufacturing method therefor
  Randomly Featured Patents
Distamycin derivatives and process for their preparation
Bottle handle
Oxindoles as sleep-inducers
System for controlling a hydrostatic-mechanical transmission at the time of vehicle acceleration or deceleration
Cobalt-based heat-resisting composition
Self-supported apparatus for the propagation of ultrahigh frequency waves
6-Amido-1-carba-2-penem-3-carboxylic acid
Communications system
Imaging method and imaging apparatus
Direct-type back light module, diffuser plate and method of fabricating the same