Accession Number : AD0714766

Title :   Results of the Development of a Series of Analog-to-Digital Computers,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Ermilov,N. P. ; Melnikov,A. S. ; Pronin,E. G.

Report Date : 04 SEP 1970

Pagination or Media Count : 10

Abstract : Accuracy and speed characteristics of several analog-to-digital converters are reported. A multichannel voltage-to-number converter operates on the digitwise-encoding principle, uses dynamic triggers, AND and OR gates; it has 10 digits, 12 inputs; conversion time, 80 mu sec per signal per channel; frequency, not over 10 kHz; temperature range, minus 40 plus 60C. A modification of this converter has a 30 percent shorter conversion time. A high-reliability converter operates on the time-encoding principle and uses parallel-redundance circuits; maximum conversion time, 320 mu sec.; 5 digits; mean time to failure, 5000 hours; 1-MHz dynamic inverters are employed. A converter with an automatically controlled slant of its sawtooth voltage is a modification of the preceeding type; its block diagram is briefly explained. A high-speed current-to-number converter operates at 10-15 MHz and has 4 binary digits; input signal is applied to all digit amplitude discriminators in parallel (with different delays); a block diagram is shown. (Author)

Descriptors :   (*ANALOG-TO-DIGITAL CONVERTERS, DESIGN), GATES(CIRCUITS), DISCRIMINATORS, SPECIFICATIONS, USSR

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE