Exhibit 12.1

Analog Devices, Inc.
Ratio of Earnings to Fixed Charges

	Fiscal Year Ended
	October 30,		October 29,		October 28,		November 3,		November 1,		October 31,
(In thousands, except ratios)	2004		2005		2006		2007		2008		2009
Determination of earnings:
Income from continuing operations before provision for taxes on income	$	633,707	$	537,201	$	636,792	$	661,457	$	666,102	$	297,444
Amortization of Capitalized interest		982		982		982		982		982		982
Fixed charges		1,725		1,542		2,093		1,834		1,607		5,457
Total earnings as defined		636,414		539,725		639,867		664,273		668,691		303,883
Fixed Charges:
Interest and amortization expense		240		43		16		7		81		4,067
Interest portion of rent expense		1,485		1,499		2,077		1,827		1,526		1,390
Fixed charges		1,725		1,542		2,093		1,834		1,607		5,457
Capitalized interest		—		—		—		—		—
Total fixed charges	$	1,725	$	1,542	$	2,093	$	1,834	$	1,607	$	5,457
Ratio of earnings to fixed charges		368.9		350.0		305.7		362.2		416.1		55.7