I am looking for this classic paper. Your help will be greatly appreciated ...
-----------------------
One bit higher order sigma-delta A/D converters Ferguson, P.F., Jr. ; Ganesan, A. ; Adams, R.W. This paper appears in:Circuits and Systems, 1990., IEEE International Symposium on Issue Date : 1-3 May 1990 On page(s): 890 - 893 vol.2 Meeting Date : 01 May 1990-03 May 1990 Cited by :4 INSPEC Accession Number: 3853451 Digital Object Identifier : 10.1109/ISCAS.1990.112231 Date of Current Version : 06 August 2002