Exhibit 12.1

Analog Devices, Inc.

Ratio of Earnings to Fixed Charges

	Fiscal Year Ended										Nine Months Ended
	Nov. 2,		Nov. 1,		Oct. 31,		Oct. 29,		Oct. 28,		Aug 4,
(In thousands, except ratios)	2013		2014		2015		2016		2017		2018
Determination of earnings:
Income from continuing operations   before provision for taxes on income	$	815,323	$	729,345	$	810,114	$	956,921	$	828,485	$	1,180,995
Amortization of Capitalized interest	54		54		54		54		54		41
Fixed charges	32,223		35,973		28,191		86,921		250,182		191,778
Total earnings as defined	847,600		765,372		838,359		1,043,896		1,078,721		1,372,814
Fixed Charges:
Interest and amortization expense	31,585		35,055		27,368		85,808		248,554		190,371
Interest portion of rent expense	638		918		823		1,113		1,628		1,407
Fixed charges	32,223		35,973		28,191		86,921		250,182		191,778
Capitalized interest	—		—		—		—		—		—
Total fixed charges	$	32,223	$	35,973	$	28,191	$	86,921	$	250,182	$	191,778
Ratio of earnings to fixed charges	26.3		21.3		29.7		12.0		4.3		7.2