Analog-to-digital converter using absolute-value conversion

Details Analog-to-digital converter using absolute-value conversion Analog-to-digital converter using absolute-value conversion

1983-02-22

1986-06-03

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

330100, 340347CC, 340347M, H03K 1302

Patent

active

045932689

ABSTRACT:
An absolute-value analog-to-digital converter containing a chain of matched main absolute-value differential amplifiers (A.sub.1 -A.sub.N) has a gain control for regulating the gain of each main amplifier utilizing an auxiliary absolute-value differential amplifier (A.sub.GC) matched to the main amplifiers. An offset control in the converter drives the offsets of the amplifiers toward zero by using a further absolute-value differential amplifier (A.sub.OC) matched to the other amplifiers. The gain and offset control are implemented with suitable feedback circuitry.

REFERENCES:
G. J. J. Vos "Een Snelle 8-bits Analoog/Digitaalomzetter", Polytechnisch Tijdschrift, E, 35, Feb. 1980, pp. 112-118.

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