Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for trimming high-resolution digital-to-analog converter










Image Number 8 for United States Patent #6664909.

A method and apparatus for trimming a high-resolution digital-to-analog converter (DAC) utilizes floating-gate synapse transistors to trim the current sources in the DAC by providing a trimmable current source. Fowler-Nordheim electron tunneling and hot electron injection are the mechanisms used to vary the amount of charge on the floating gate. Since floating gate devices store charge essentially indefinitely, no continuous trimming mechanism is required, although one could be implemented if desired. By trimming the current sources with high accuracy, a DAC can be built with a much higher resolution and with smaller size than that provided by intrinsic device matching.








 
 
  Recently Added Patents
Electromagnetic bandgap structure and printed circuit board
Methods and systems for optimizing data accesses
Switchable memory diodes based on ferroelectric/conjugated polymer heterostructures and/or their composites
Computer server capable of supporting CPU virtualization
Method for preparing a .beta.-SiAlON phosphor
Complete context search system
1,3-diiodohydantoin compound and production method thereof
  Randomly Featured Patents
Power transfer pump
Horseshoe
Automated banking machine that operates responsive to data bearing records
Substituted phenyl keto enols as pesticides and herbicides
Membrane assemblies and methods of making and using the same
Vibration damper assembly for a vehicle
Apparatus for reproducing recorded information with error detection and correction processing
Incremental provisioning of software
System and method for establishing and monitoring the relative location of group members
Disintegrating and grain-regulating device for granules