Accession Number:

ADD019399

Title:

Amplification of Signals from high Impedance Sources

Descriptive Note:

Patent, Filed 24 Mar 97, patented 2 Mar 99

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1999-03-02

Pagination or Media Count:

17.0

Abstract:

An analog signal conditioner for signals from high impedance sources adapted for ready implementation as an integrated circuit. The signal conditioner includes a preamplifier, a step gain amplifier and a low-pass filter. A calibration generator can inject a calibration signal into the system. The step gain amplifier includes analog switches that control paths through a voltage divider network to provide negative feedback on both sides of a fully differential operational amplifier. The design of the feedback networks minimizes the total resistance on the integrated circuit.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE