1 Exhibit 11-1 Analog Devices, Inc. Computation of Earnings Per Share (Unaudited) (in thousands, except per share data) Three Months Ended -------------------------------- August 2, 1997 August 3, 1996 -------------- -------------- PRIMARY EARNINGS PER SHARE Weighted average common and common equivalent shares: Weighted average common shares outstanding 159,649 152,950 Assumed exercise of common stock equivalents (1) 7,139 8,986 Assumed conversion of subordinated notes 10,985 10,985 -------- -------- Weighted average common and common equivalent shares 177,773 172,921 ======== ======== Net income $ 45,969 $ 43,796 Interest related to convertible subordinated notes, net of tax 1,425 1,455 -------- -------- Earnings available for common stock $ 47,394 $ 45,251 ======== ======== PRIMARY EARNINGS PER SHARE $ 0.27 $ 0.26 ======== ======== FULLY DILUTED EARNINGS PER SHARE Weighted average common and common equivalent shares: Weighted average common shares outstanding 159,649 152,950 Assumed exercise of common stock equivalents (1) 7,835 9,046 Assumed conversion of subordinated notes 10,985 10,985 -------- -------- Weighted average common and common equivalent shares 178,469 172,981 ======== ======== Net income $ 45,969 $ 43,796 Interest related to convertible subordinated notes, net of tax 1,425 1,455 -------- -------- Earnings available for common stock $ 47,394 $ 45,251 ======== ======== FULLY DILUTED EARNINGS PER SHARE $ 0.27 $ 0.26 ======== ======== (1) Computed based on the treasury stock method. 17 2 Exhibit 11-1(Continued) Analog Devices, Inc. Computation of Earnings Per Share (Unaudited) (in thousands, except per share data) Nine Months Ended -------------------------------- August 2, 1997 August 3, 1996 -------------- -------------- PRIMARY EARNINGS PER SHARE Weighted average common and common equivalent shares: Weighted average common shares outstanding 158,837 152,016 Assumed exercise of common stock equivalents (1) 6,993 9,266 Assumed conversion of subordinated notes 10,985 9,079 -------- -------- Weighted average common and common equivalent shares 176,815 170,361 ======== ======== Net income $127,267 $127,881 Interest related to convertible subordinated notes, net of tax 4,275 3,575 -------- -------- Earnings available for common stock $131,542 $131,456 ======== ======== PRIMARY EARNINGS PER SHARE $ 0.75 $ 0.77 ======== ======== FULLY DILUTED EARNINGS PER SHARE Weighted average common and common equivalent shares: Weighted average common shares outstanding 158,837 152,016 Assumed exercise of common stock equivalents (1) 7,421 9,435 Assumed conversion of subordinated notes 10,985 9,079 -------- -------- Weighted average common and common equivalent shares 177,243 170,530 ======== ======== Net income $127,267 $127,881 Interest related to convertible subordinated notes, net of tax 4,275 3,575 -------- -------- Earnings available for common stock $131,542 $131,456 ======== ======== FULLY DILUTED EARNINGS PER SHARE $ 0.75 $ 0.77 ======== ======== (1) Computed based on the treasury stock method. 18