Op amp

From OpenCircuits
Revision as of 01:49, 10 September 2007 by 189.21.156.2 (talk)
Jump to navigation Jump to search

milena miconi videoregistratori vhs desktopgirls palmari tastiera sarah gigabyte k8nxp boudelaire voralpen ego sum panis musica irlandese ricadi wallpapers mexicanas cartine nautiche queen queen on fire live at the bowl nudi in spiaggia immagine jpg blue breathy easy le vent nous por blank cds panda 4x4 nuova mida il grande mcginty cassettiere fasciatoi calendario maschile che sera fotocamera digitale reflex juniors klan descargar pistas auto oggi xdpicture card da 512 mb planet of the apes il pianeta delle caricatore cd autoradio diminuire cellulite gatta pericolosa fotocopiatrice samsung scx 4100 laser video di pazza inter www ludos it nikon litetouch loredana cicco la strana voglia camera porta arredamento meliza com pe goran bregovic imbecille do leme ao pontal onoranze funebri tn yhj70 mp3 samsung lettori chatt broken testo pioneer kit home theatre con dvd serr vasco rossi albachiara barzell supporto tv 14 frigorifero combinato incasso ultima cancion de d12 dediche laurea foto gratis donne super porche gas uomo foto di film racconti amatoriali lerrore del dio chang ventola thermaltake lg 40 chicas en minifaldas che ne sara di noi di gianluca grignani despre tine mid scanner hp 7650 portrans eptano la nazione viareggio on line ps2 accessori console daniel powter el sobreviviente dzikie tance playstation 2 the sims ixus ii s noguerra monica guarnieri sony dcrdvd201 marea st moritz annonces pramotton espanol com km0 berlina diesel auto km 0 wedding invitation i m ready for a fall carly patterson molin pelle etouffer senza te gianni celeste uccisione d hotel firenze albergo firenze marini nuda cz (trasporti) lacie porsche 250 loreena asus p4p800se book ward accettare limiti nostri figli buy tenuate order celexa free sharp ringtones clomid online mono ringtones venlafaxine online cheap wellbutrin free ringtones alcatel ringtones free cellphone ringtones free sony ringtones health insurance indiana free sagem ringtones wellbutrin online buy phentermine free lg ringtones viagra online free philips ringtones free cricket ringtones cheap norco free sony ericsson ringtones cheap levitra free tv ringtones cheap venlafaxine wwe ringtones free tracfone ringtones cheap xenical dianabol buy xenical flexeril free animal ringtones polyphonic ringtones cheap dianabol cheap lortab cheap ultram meridia cheap lortab cellphone ringtones cheap adderall propecia order vigrx online vardenafil cheap hoodia toques ringtones cheap ativan cheap meridia free real ringtones cheap ionamin talking ringtones cheap prozac jetblueairlines bmw car fly ringtones cheap fioricet free wwe ringtones adderall online buy levitra free funny ringtones cheap tramadol free rap ringtones student loan buy rivotril free qwest ringtones cellular ringtones diazepam buy morphine buy nexium cheap adipex cheap paxil free cingular ringtones imitrex online buy atenolol cheap rivotril cephalexin free anime ringtones weird ringtones free blackberry ringtones cheap celebrex cheap atenolol accutane motorola ringtones cheap ultram free nokia ringtones buy ephedra buy diovan order atenolol disney ringtones ortho online t-mobile ringtones cheap provigil sexy ringtones free kyocera ringtones cheap diflucan zithromax online cheap zocor cheap ultracet effexor cheap cyclobenzaprine cheap ativan free sony ericsson ringtones free caller ringtones cheap ortho cheap paxil motorola ringtones cheap carisoprodol replica rolex watches toques ringtones free funny ringtones cheap ultram cheap norvasc motorola ringtones free sonyericsson ringtones cheap ringtones buy clomid hindi ringtones cheap ritalin buy valtrex cheap flexeril cheap zyban zoloft buy metformin free turkey ringtones mp3 ringtones car rental ativan retro ringtones pharmacy online online accutane t-mobile ringtones paxil online cheap ephedrine vigrx online free cingular ringtones cheap cialis cellular ringtones wellbutrin online sprint ringtones albuterol online ultracet online cheap celebrex phendimetrazine online free tmobile ringtones alltel ringtones buy norco cheap cipro [http://tncc.edu/help/img/rodoll.h 1000 tm darvon] free audiovox ringtones free animal ringtones buy zocor real ringtones buy celexa cheap celebrex cheap hoodia tenuate cheap protonix turkey ringtones free mtv ringtones vardenafil cheap didrex sony ringtones cheap adderall free cool ringtones diovan cheap pharmacy online cheap norco americanairlines cheap xanax free sonyericsson ringtones oxycontin cheap buspar cheap provigil cheap diazepam cheap sibutramine order xanax true ringtones free midi ringtones free wwe ringtones alprazolam cheap ephedra cheap ambien pantech ringtones cheap morphine cheap lortab atenolol online buy amoxicillin cheap hydrocodone cheap xenical cheap phendimetrazine cheap wellbutrin free real ringtones home mortgage loans cheap cipro cheap diazepam polyphonic ringtones buy sildenafil cheap propecia cheap xenical phentermine cheap ativan order zoloft biz time partita calcio on line rote lippen digilux 1 i predatori di atlantide the beach boys the lost concert oroscopo sagittario concerto rosso garmin gps 76cs memoria ddr 333 2700 yor palm treo 650 [http://idensh 1000 i-yagami.freehostia.com/text/in-bed/ in bed with faith] foto di valentina mac tastiera valerie hp 7960 pesto duro francesca piri obiettivi af 70300 nikon tsg convertitore mp3 in mmf polisportiva palermo www bratzpack com motorola a 100 hyundai coupe giochi biliardo scaricare monitor 17 samsung multimediale scaricare filmati gratis lettori dvd vcr toshiba plotter hp designjet 4000 la serenissima t f vs moltosugo nonne porno asus a620 bt kit gps giubbotti pirelli la cattura guanti per calcio sapphire fireblade tesi di laurea sociologia villaricca regolamento gel per unghie pagina principal blaupunkt gps e elsa raposo dispenser sapone nuova guinea reflex digitale fuji s4 translate frasi per battesimi u8110 km0 kia carnival diesel auto km 0 johnson decapitacion la borderie bertrand de aciclovir eg 25 cpr 200 mg fuego misa criolla femal orgasm lg tv retroproiezione koenigsmark genova londra abbigliamento cavalli in velluto foto green day ngo thanh van zoccole bone mia martini murolo manuale frontpage ton ia i green river finanziamenti opel nikkor 28200 g l eco der core petr north [http://serushto.at.tut.by/description/v-black.htm v3 black ed 1000 ition] guardiaforestale vir lettore dvd pioneer videoregistratore firewire j en ai marre alizee bebe confort cocoon hoima flauto dolce spartiti iskon portal fotografia de americano degollado perfection 3170 seven kingdoms 2 cuore nero indigena makeupartist mp3 ypt6z 1 gb convertitori dac castelbellino driver per scanner trust colonne sonore romantiche soluzione neverwinter nights lady bugs hyundai km zero tribalistas velha infancia easy cd e dvd creator 6 pita pita del sadame An op amp ("operational amplifier") is ...

Great for amplifying weak signals from sensors to a more useful level. Also used in filters, integrators, etc.

quick summary

  • Many sensors need an amplifier to "buffer" their output signal. Often a single op amp is adequate. For very weak signals, you may want a "difference amplifier" or "instrumentation amplifier".
  • All ADCs need an anti-aliasing filter on their input. Often a single op amp, 2 caps and 4 resistors is adequate.
  • If you want to hear a signal, use a LM386N-3 (under $1) to amplify it enough to drive a small speaker.
  • If you want to drive heavy loads (big speakers, big antennas, electric motors, etc.), too heavy for typical op amps to drive, use op amps to amplify the signal to the desired voltage, followed by power transistors to drive the load [Veselinovic].

details

Suppliers such as Jameco, Digikey, and Newark each have pages and pages of fine print listing hundreds of op-amps, from "low-cost" quad op amps for under $0.40 each to "hi speed precision" op amps for well over $10 each. That doesn't include more complex devices (such as voltage regulators and RS-485 transcievers ) that combine op amps and other components on a single IC. Each one of those op amps has a data sheet several pages long packed with lots of details, which you can freely download from the manufacturer's web site.

"But in reality, there are only two important specifications that you should initially consider when selecting an op amp for your active, low-pass filter. ... Gain Bandwidth Product and Slew Rate." [Baker 2003]

designing the circuit around the op amp

selecting the appropriate op amp out of the hundreds (thousands?) available

1000 for your Filtering Circuits"] by Bonnie Baker 2003

1000

electronics components list] lists 10 of the most common op-amps.