Accession Number:

ADD013065

Title:

High-Speed Bipolar Logarithmic Analog-to-Digital Converter.

Descriptive Note:

Patent, Filed 11 Oct 83, patented 16 Jul 85,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1985-07-16

Pagination or Media Count:

4.0

Abstract:

A high-speed bipolar logarithmic analog-to-digital AD converter outputs a signed binary number proportional to the logarithm of a bipolar analog input signal. A log converter is followed by a level shifting amplifier to center the output of the log converter on a temperature compensating reference. The reference voltage from the temperature compensating reference is used by a linear AD converter to set the end points of the converter range. A code converter follows the AD converter if a uniform abslute value coding is desired. Limiting the number of least significant bits LSB used to those representing the range of u sable converter operation completes the device. Patent

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE