Exhibit 12.1

Analog Devices, Inc.

Ratio of Earnings to Fixed Charges

(In thousands, except ratios)	Pro Forma Fiscal Year Ended October 31, 2015
Determination of earnings:
Income from continuing operations before provision for taxes on income	$	762,553
Amortization of Capitalized interest		54
Fixed charges		72,726
Total earnings as defined		835,333
Fixed Charges:
Interest and amortization expense		71,903
Interest portion of rent expense		823
Fixed charges		72,726
Capitalized interest
Total fixed charges	$	72,726
Ratio of earnings to fixed charges		11.5