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
Data processing apparatus, activation control method, and computer-readable storage medium
System and method for dynamic quality-of-service-based billing in a peer-to-peer network
Spray drying vancomycin
Collaborative system for capture and reuse of software application knowledge and a method of realizing same
Radiation-curable ink composition, ink jet recording method, and recorded matter
Cantilevered probe detector with piezoelectric element
Resistor and manufacturing method thereof
  Randomly Featured Patents
Superplastic ultra high carbon steel
Composite joint infill system
Tape sheet pads and dispenser and method of dispensing individual tape sheets from such pads
Proteins, sensors, and methods of characterizing analytes using the same
Nitrogen-containing heterocyclyl-oxy and -thio compounds useful as pesticides
Method for manufacturing a multi-bit memory cell
Semiconductor device and manufacturing method thereof
Method for forming conductive structures
Apparatus for road path searching applicable to car navigation system and operation method thereof
Combined mailing streams