Performance of a single channel zero-crossing AD converter

Authors

Vincent Ricardo Daria ⋅ PH National Institute of Physics, University of the Philippines Diliman
Caesar Saloma ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The signal recovery capability of a newly-designed single channel AD converter is presented. The AD converter features a single bipolar comparator (LM311, differential input voltage = ±5V), synchronous 8-bit up/down counter and an 80KHz sinusoid base signal. An initial crossing location accuracy of 1 in 256 is achieved within the Nyquist interval. The converter is constructed using discrete TTL components. The measured signal is reconstructed by inverse transforming the Fourier coefficients from the measured zero crossings computed using Newton's formula.

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Issue

1992: Proceedings of the International Conference on Physics and Technology in the 1990's

Article ID

ICPT-1992-IP-05

Section

Instrumentation Physics

Published

1992-12-01

How to Cite

[1]

VR Daria and C Saloma, Performance of a single channel zero-crossing AD converter, Proceedings of the Samahang Pisika ng Pilipinas 10, ICPT-1992-IP-05 (1992). URL: https://proceedings.spp-online.org/article/view/ICPT-1992-IP-05.