Resources Contact Us Home
A-To-D converter of the successive-approximation type

Image Number 6 for United States Patent #4427973.

An integrated-circuit analog-to-digital converter of the successive-approximation type formed on a single monolithic chip. The converter is made by a diffusion process wherein certain portions of the chip are formed with normal-mode linear transistors, and other portions are formed with inverted mode I.sup.2 L transistors. The normal-mode transistors provide a switchable current-source DAC, a set of three-state output buffers, and a comparator. The inverted mode transistors provide an internal clock and successive-approximation control circuitry for the DAC. The chip also includes a voltage reference to provide for absolute analog-to-digital conversions.

  Recently Added Patents
PMI feedback with codebook interpolation
Method of fabricating solid electrolytic capacitor and solid electrolytic capacitor
Process cartridge and electrophotographic image forming apparatus
Water purification using energy from a steam-hydrocarbon reforming process
Encryption using alternate authentication key
Flat display panel and method for forming the same
Image sensing apparatus and method of controlling the image sensing apparatus
  Randomly Featured Patents
Method of performing an instantaneous moisture concentration measurement and for determining the drydown characteristics of an environment
Beverage maker
Radiation curable phase change inks containing curable epoxy-polyamide composite gellants
Adhering method
Offset-compensated self-biased differential amplifier
Sleeve-type carrier with improved handle
Electrochemical measuring device with an planar sensor substrate
Combined writing instrument and stamp
Colorimetric detection of delta-5-3-ketosteroid isomerase and immunoassay based thereon
Method and system for controlling thrust of watercraft during various steering conditions