< https://www.edn.com/> NEWS < HTTPS://WWW.EDN.COM/CATEGORY/NEWS/> NEWS ARCHIVE < HTTPS://WWW.EDN.COM/CATEGORY/NEWS/NEWS-ARCHIVE/> The square root of the sum of the squares MARCH 1, 2006 < HTTPS://WWW.EDN.COM/THE-SQUARE-ROOT-OFTHE-SUM-OF-THE-SQUARES/> COMMENTS 0 < HTTPS://WWW.EDN.COM/THESQUARE-ROOT-OF-THE-SUM-OF-THE- BY BY MARIO PAZZINI, MICROSIGMA SRL, ITALY SQUARES/#RESPOND> If you have to generate an analog voltage proportional to the module of a vector whose components are also available in analog form, you can adopt a classic solution involving the use of analog multipliers. The approach this article presents has the great advantage of avoiding entering into the realm of the squares and therefore avoiding the need to come back from that troublesome realm with a square root extractor, which represents an even more difficult trip. For this solution, I am fully indebted to TE Stern and RM Lerner, who presented an article titled “A Circuit for the Square Root of the Sum of the Squares” in the IEEE Proceedings of April 1963. At the time of the paper's publication, operational amplifiers were bulky, expensive, and inaccurate— very far from the wonderful jewels that modern linear IC technology offers. Thus, it is very useful to revisit their idea by applying modern technology and circuit techniques. Read more In-Depth Technical Features PARTNER CONTENT < iSentek’s Cutting-Edge E- Special Report: GaN & SiC compass Sets New Worldwide < Standards with Dynamic https://www.eetimes.com/isenteksR B kth h < 10.24.2023 cuttingedge-e- Mastering Portability in AI’s Hardware Revolution < < https://www.eetimes.com/sp https://www.eetimes.com/ma https://www.eetimes.com/specialhttps://www.eetimes.com/masteringt i ld id /> t bilit i i h d 10.16.2023 10.13.2023 reportportability< gan-sic- compassworldwide/> Read the complete article, provided in a PDF file . sets-new- in-aishardwarerevolution/> standardswithdynamicrangebreakthrough/> 0 COMMENTS ON “THE SQUARE ROOT OF THE SUM OF THE SQUARES” L EAVE A REPLY You must Sign in < https://login.aspencore.com/d045a02d-767d-4f3f-80d7-695dce25d142/login/authorize? response_type=code&scope=profile%20email%20openid&client_id=cf5f876c-2b69-4672-892d1a3f9cd881ea&state=10b332d6d18ae1fb56150a0f79fed1dd&redirect_uri=https%3A%2F%2Fwww.edn.com%2Fopenid-connect-authorize> or Register < https://login.aspencore.com/d045a02d-767d-4f3f-80d7-695dce25d142/login/authorize? response_type=code&scope=profile%20email%20openid&client_id=cf5f876c-2b69-4672-892d1a3f9cd881ea&state=c44cec9e121432e53d039bf6cf92f655&redirect_uri=https%3A%2F%2Fwww.edn.com%2Fopenid-connect-authorize> to post a comment. 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