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
Polyhydroalkanoate composition exhibiting improved impact resistance
Device, system and method for dispensing a fixed dose of fluid
Light emitting device
Method of replacing an underground pipe section
Heterocyclic compounds, pharmaceutical compositions containing them, and their use in therapy
Soybean variety D2011905
Incremental memory refresh
  Randomly Featured Patents
Stepped piston and stepped piston engine
Processes and systems involving optical phase conjugators
Plastic outlet valve for transport and storage containers for liquids
Method and means for determining estimated relative exposure values from optical density values of photographic media
Toy car
Multicylinder internal combustion engine
Odor controlling composition and methods of making and using
Wiring structure using flexible printed circuit board and optical module using the same
Double-structured package of one-shot-push squeeze-out type for adhesive
Bicycle wheel quick-release apparatus