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
Factor IXa crystals, related complexes and methods
Method and system for reciprocal mixing cancellation of wideband modulated blockers
Radio communication system, base station apparatus, terminal apparatus, and radio communication method for radio communication system
Power saving methods for wireless systems
Telephone relaying apparatus, telephone relaying method, and program
System and method for providing location and access network information support in a network environment
Process for producing dipeptides or dipeptide derivatives
  Randomly Featured Patents
Method of data transmission with iterative multi-user detection and apparatus using the same
Method for purifying methyl alkyl siloxane lubricants
Compressor
Warm air furnace
Partitioning the processors of a massively parallel single array processor into sub-arrays selectively controlled by host computers
Semiconductor device and method of fabricating the same
Dynamic mirroring of a network connection
Method and system for controlling radio controlled devices
Molding apparatus and method of forming undercuts
Air conditioner and method for controlling the same