Exhibit 12.1

Analog Devices, Inc.

Ratio of Earnings to Fixed Charges

	Fiscal Year Ended										Six Months Ended
	Nov. 2,		Nov. 1,		Oct. 31,		Oct. 29,		Oct. 28,		May 5,
(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	$	740,401
Amortization of Capitalized interest	54		54		54		54		54		27
Fixed charges	32,223		35,973		28,191		86,921		250,182		132,055
Total earnings as defined	847,600		765,372		838,359		1,043,896		1,078,721		872,483
Fixed Charges:
Interest and amortization expense	31,585		35,055		27,368		85,808		248,554		130,574
Interest portion of rent expense	638		918		823		1,113		1,628		1,481
Fixed charges	32,223		35,973		28,191		86,921		250,182		132,055
Capitalized interest	—		—		—		—		—		—
Total fixed charges	$	32,223	$	35,973	$	28,191	$	86,921	$	250,182	$	132,055
Ratio of earnings to fixed charges	26.3		21.3		29.7		12.0		4.3		6.6