Results of the Development of a Series of Analog-to-Digital Computers,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 04, 1970
- Accession Number
- AD0714766
Entities
People
- A. S. Melnikov
- E. G. Pronin
- N. P. Ermilov
Organizations
- National Air and Space Intelligence Center