Analog Devices (ADI) S-3ASR Automatic shelf registration

Exhibit 12.1

Analog Devices, Inc.

Ratio of Earnings to Fixed Charges

	Fiscal Year Ended										Nine Months Ended
	Oct. 30,		Oct. 29,		Nov. 3,		Nov. 2,		Nov. 1,		Aug. 1,
(In thousands, except ratios)	2010		2011		2012		2013		2014		2015
Determination of earnings:
Income from continuing operations before provision for taxes on income	$	901,665	$	1,061,447	$	813,533	$	815,323	$	729,345	$	705,437
Amortization of Capitalized interest		440		54		54		54		54		45
Fixed charges		11,388		19,892		32,529		32,223		35,973		21,229
Total earnings as defined		913,493		1,081,393		846,116		847,600		765,372		726,711
Fixed Charges:
Interest and amortization expense		10,226		18,892		31,525		31,585		35,055		20,593
Interest portion of rent expense		1,162		1,000		1,004		638		918		636
Fixed charges		11,388		19,892		32,529		32,223		35,973		21,229
Capitalized interest		—		—		—		—		—		—
Total fixed charges	$	11,388	$	19,892	$	32,529	$	32,223	$	35,973	$	21,229
Ratio of earnings to fixed charges		80.2		54.4		26.0		26.3		21.3		34.2