Title :
An inexpensive millivolt A/D converter
Author_Institution :
Bell Telephone Laboratories, Inc., Holmdel, NJ, USA
Abstract :
An A/D converter designed to modulate a pulsewidth using a capacitor charging technique will be described. It can measure, with less than 200 μV zero error, voltages of either polarity, to ground or floating.
Keywords :
Capacitors; Charge measurement; Charge transfer; Current measurement; Pulse amplifiers; Sampling methods; Space vector pulse width modulation; Switches; Telephony; Voltage;
Conference_Titel :
Solid-State Circuits Conference. Digest of Technical Papers. 1972 IEEE International
Conference_Location :
Philadelphia, PA, USA
DOI :
10.1109/ISSCC.1972.1155103
