SGM8// SGM8/, Rail-to-Rail Output PRODUCT DESCRIPTION Th SGM8/(singl), SGM8/(dual), SGM8 (quad) ar rail-to-rail output voltag fdback amplifirs offring as of us and low cost. Thy hav bandwidth and slw rat typically found in currnt fdback amplifirs. All hav a wid input common-mod voltag rang and output voltag swing, making thm asy to us on singl supplis as low as.v. Dspit bing low cost, th SGM8 sris provid xcllnt ovrall prformanc. Thy offr wid bandwidth to (G = +) along with.db flatnss out to 7 (G = +) and offr a typical low powr of.ma/amplifir. Th SGM8 sris is low distortion and fast sttling mak it idal for buffring high spd A/D or D/A convrtrs. Th SGM8/ has a powr-down disabl fatur that rducs th supply currnt to 7µA. Ths faturs mak th SGM8/ idal for portabl and battry-powrd applications whr siz and powr ar critical. All ar spcifid ovr th xtndd to + tmpratur rang. PIN CONFIGURATIONS (Top Viw) NC -IN +IN -VS OUT A -IN A +IN A +VS +IN B -IN B OUT B OUT -VS +IN 7 SGM8/8 NC = NO CONNECT SO-8 SGM8 SOT- SGM8 NC = NO CONNECT TSSOP- / SO- 8 DISABLE OUT A (SGM8 ONLY) 7 +VS -IN 9 8 +VS OUT NC OUT D -IN D +IN D -VS +IN C -IN C OUT C -IN A +IN A -VS OUT A -IN A +IN A -VS DISABLE OUT -VS +IN SGM8 SO-8 / MSOP-8 SGM8 8 SOT- SGM8 MSOP- 8 7 9 8 7 +VS +VS OUT B -IN B +IN B DISABLE -IN +VS OUT B -IN B +IN B DISABLE FEATURES Low Cost Rail-to-Rail Output mv Typical V OS High Spd, -db Bandwidth (G = +) V/µs, Slw Rat 8ns Sttling Tim to.% with V Stp Oprats on.v to.v Supplis Input Voltag Rang = -.V to +.8V with V S = V Excllnt Vido Spcs (R L = Ω, G = +) Gain Flatnss.dB to 7 Diff Gain:.%, Diff Phas:.8 dgr Low Powr.mA/Amplifir Typical Supply Currnt 7µA/Amplifir whn Disabld (SGM8/ Only) Small Packaging SGM8 Availabl in SOT- and SO-8 SGM8 Availabl in MSOP-8 and SO-8 SGM8 Availabl in SOT- and SO-8 SGM8 Availabl in TSSOP- and SO- SGM8 Availabl in MSOP- APPLICATIONS Imaging Photodiod Pramp Profssional Vido and Camras Hand Sts DVD/CD Bas Stations Filtrs A-to-D Drivr Normalizd Gain (db) - - -9 - - Small Signal Frquncy Rspons V o =.V P-P G = + R L = KΩ R F = Ω G = + R L = Ω R F = 887Ω REV. D.
SGM8// SGM8/ PACKAGE/ORDERING INFORMATION, Rail-to-Rail Output MODEL CHANNEL ORDER NUMBER SGM8 SGM8 SGM8 SGM8 SGM8 Singl Dual PACKAGE DESCRIPTION PACKAGE OPTION MARKING INFORMATION SGM8XN/TR SOT- Tap and Rl, 8 SGM8XS/TR SO-8 Tap and Rl, SGM8XS SGM8XMS/TR MSOP-8 Tap and Rl, SGM8XMS SGM8XS/TR SO-8 Tap and Rl, SGM8XS Singl SGM8XN/TR SOT- Tap and Rl, 8 With shutdown SGM8XS/TR SO-8 Tap and Rl, SGM8XS Quad Dual with shutdown SGM8XS/TR SO- Tap and Rl, SGM8XS SGM8XTS/TR TSSOP- Tap and Rl, SGM8XTS SGM8XMS/TR MSOP- Tap and Rl, SGM8XMS ABSOLUTE MAXIMUM RATINGS Supply Voltag, V+ to V-...7.V Common-Mod Input Voltag...(-V S ) -.V to (+V S ) +.V Storag Tmpratur Rang... to + Junction Tmpratur... Oprating Tmpratur Rang... to + Packag Thrmal Rsistanc @ T A = SOT-, θ JA... 9 /W SOT-, θ JA... 9 /W SO-8, θ JA... /W MSOP-8, θ JA... /W MSOP-, θ JA... /W Lad Tmpratur Rang (Soldring sc)... ESD Suscptibility HBM...V MM...V NOTES: Strsss abov thos listd undr Absolut Maximum Ratings may caus prmannt damag to th dvic. This is a strss rating only; functional opration of th dvic at ths or any othr conditions abov thos indicatd in th oprational sction of this spcification is not implid. Exposur to absolut maximum rating conditions for xtndd priods may affct dvic rliability. CAUTION This intgratd circuit can b damagd by ESD if you don t pay attntion to ESD protction. SGMICRO rcommnds that all intgratd circuits b handld with appropriat prcautions. Failur to obsrv propr handling and installation procdurs can caus damag. ESD damag can rang from subtl prformanc dgradation to complt dvic failur. Prcision intgratd circuits may b mor suscptibl to damag bcaus vry small paramtric changs could caus th dvic not to mt its publishd spcifications.
SGM8// SGM8/, Rail-to-Rail Output ELECTRICAL CHARACTERISTICS: V S = +V (G = +, R F = 887Ω, R L = Ω, unlss othrwis notd.) PARAMETER DYNAMIC PERFORMANCE -db Small Signal Bandwidth Gain-Bandwidth Product Bandwidth for.db Flatnss Slw Rat Ris-and-Fall Tim Sttling Tim to.% Ovrload Rcovry Tim NOISE/DISTORTION PERFORMANCE Input Voltag Nois Diffrntial Gain Error (NTSC) Diffrntial Phas Error (NTSC) DC PERFORMANCE Input Offst Voltag (V OS) Input Offst Voltag Drift Input Bias Currnt(I B ) Input offst Currnt(I OS ) Opn-Loop Gain (A OL ) CONDITIONS G = +, Vo =.V p-p, R F = Ω, R L = Ω G = +, Vo =.V p-p, R F = Ω, R L = KΩ G = +, Vo =.V p-p, R L = Ω G = +, Vo =.V p-p, R L = Ω G = +, Vo =.V p-p, R L = KΩ G = +, Vo =.V p-p, R L = KΩ G = +, R L =Ω G = +, R L =KΩ G = +, Vo =. V p-p, R L =Ω, R F =887Ω G = +, V Output Stp G = +, V Output Stp G = +, V Output Stp G = +, Vo =.V p-p, % to 9% G = +, Vo = Vp-p, % to 9% G = +, V Output Stp V IN G = +V S f = G = +, RL = Ω G = +, RL = Ω V O =.V to.7v, R L = Ω V O =.V to.8v, R L = KΩ INPUT CHARACTERISTICS Input Common-Mod Voltag Rang (V CM ) Common-Mod Rjction Ratio (CMRR) V CM = -.V to +.V OUTPUT CHARACTERISTICS Output Voltag Swing from Rail Output Currnt Closd-Loop Output Impdanc POWER-DOWN DISABLE (SGM8/ only) Turn-On Tim Turn-Off Tim DISABLE Voltag-Off DISABLE Voltag-On POWER SUPPLY Oprating Voltag Rang R L = Ω R L = KΩ f<khz Quiscnt Currnt (pr amplifir) Supply Currnt whn Disabld pr amplifir (SGM8/ only) Powr Supply Rjction Ratio (PSRR) V S = +.7V to +.V, V CM = (-V S ) +. + + 8 8 9 7 9/-8 /- /- 8 8 8...8 ±. 8 ±8 7 9 to7 ±8.9 7 9 SGM8//// MIN/MAX OVER TEMPERATURE - to 8 ±9. 7 9 - to ±9.8 7 8 -. to +.8 8...8. 7 8 9 9 8.8... 7.7.. 7 7.7..8.7. 7 UNITS V/µs V/µs V/µs ns ns ns ns nv/ Hz % dgr mv µv/ PA PA db db V db V V ma Ω ns ns V V V V ma µa db MIN/ MAX MAX MIN MIN MIN MIN MAX MIN MIN MAX MAX MAX MIN Spcifications subjct to changs without notic.
SGM8// SGM8/ ICAL PERFORMANCE CHARACTERISTICS, Rail-to-Rail Output At T A = +, V S = +V, G = +, R F = 887Ω, R G = 887Ω, and R L = Ω connctd to Vs/, unlss othrwis notd. Normalizd Gain (db) - - -9 - Non-Invrting Small Signal Frquncy Rspons V O =.V P-P G = + G = + G = + G = + R F = Ω Normalizd Gain (db) - - -9 - Invrting Small Signal Frquncy Rspons V O =.V P-P G = - G=- G=- G=- - -. Normalizd Gain (db) - - -9 - - Frquncy Rspons For Various R L C L = pf V O =.V P-P R L = Ω R L = Ω R L = KΩ R L = KΩ Normalizd Gain (db)..... -. -. -. -. -..db Gain Flatnss For Various R F V O =.V P-P C L = pf R F = 9Ω R F = 887Ω R F = KΩ Normalizd Gain (db) 9 - - -9 - - Frquncy Rspons For Various C L R S = Ω V O =.V P-P C L = pf C L = pf C L = 7pF Normalizd Gain (db) - - -9 - - Frquncy Rspons vs. Capacitiv Load V O =.V P-P C L = pf R S = 7.Ω C L = pf R S = Ω C L = 7pF R S =.Ω
SGM8// SGM8/, Rail-to-Rail Output ICAL PERFORMANCE CHARACTERISTICS At T A= +, V S = +V, G = +, R F = 887Ω, R G = 887Ω, and R L = Ω connctd to Vs/, unlss othrwis notd. Larg-Signal Disabl/Enabl Rspons Maximum Output Voltag vs. Frquncy Output Voltag (V/div) Disabld Enabld V OUT = V V S = V G = + f IN = Disabl Voltag (V) Output Voltag (V p-p ) V S =.V V S =.7V Maximum Output Voltag Without Slw-Rat Inducd Distortion Tim (ns/div) - Non-Invrting Small Signal Stp Rspons Non-Invrting Larg Signal Stp Rspons Output Voltag (mv/div) Output Voltag (mv/div) Tim (ns/div) Tim (ns/div) Rail-To-Rail Disabld Output Isolation Frquncy Rspons.88V V G = +, R F = 887Ω, R L = KΩ Disabld Isolation (db) - - - - - - -7-8 V O =.V P-P V DISABLE = V R L = KΩ -9 Tim (ns/div)
SGM8// SGM8/, Rail-to-Rail Output ICAL PERFORMANCE CHARACTERISTICS At T A = +, V S = +V, G = +, R F = 887Ω, R G = 887Ω, and R L = Ω connctd to Vs/, unlss othrwis notd. Output Impdanc (Ω) Closd-Loop Output Impdanc vs. Frquncy.... Output Erro r(%)..... -. -. -. -. -. Output Sttling Tim To.% V O = V P-P 8 Tim (ns) Voltag Nois (nv/ Hz) Input Voltag Nois Spctral Dnsity vs. Frquncy.. Frquncy (khz) PSRR (db) - - - - - - -7-8 -9 Powr-Supply Rjction Ratio vs. Frquncy -PSRR +PSRR -.. CMRR (db) - - - - - - -7-8 -9 Common-Mod Rjction Ratio vs. Frquncy -...V.8V V Ovrload Rcovry Tim Tim(ns/div) Vs = ±.V V IN =.8V G = +
SGM8// SGM8/, Rail-to-Rail Output ICAL PERFORMANCE CHARACTERISTICS At T A= +, V S = +V, G = +, R F = 887Ω, R G = 887Ω, and R L = Ω connctd to Vs/, unlss othrwis notd. Opn-Loop Gain vs. Tmpratur CMRR and PSRR vs. Tmpratur Opn Loop Gain (db) 9 8 R L =Ω R L =KΩ CMRR,PSRR (db) 9 8 7 PSRR CMRR R L =Ω 7 - - - 7 9 Tmpratur ( ) - - - 7 9 Tmpratur ( ) Shutdown Currnt (µa) Shudown Currnt vs. Tmpratur 8 7 V S = V 7 V S = V V S =.7V - - - 7 9 Tmpratur ( ) Supply Currnt (ma).8....8.. Supply Currnt vs. Tmpratur V S = V V S =.7V V S = V. - - - 7 9 Tmpratur ( ) Output Voltag Swing vs.output Currnt Output Voltag Swing vs. Output Currnt Sourcing Currnt Output Voltag (V) - Sourcing Currnt V S = V - Sinking Currnt 7 Output Currnt (ma) Output Voltag (V) - V S = V - Sinking Currnt 8 Output Currnt (ma) 7
SGM8// SGM8/, Rail-to-Rail Output ICAL PERFORMANCE CHARACTERISTICS At T A= +, V S = +V, G = +, R F = 887Ω, R G = 887Ω, and R L = Ω connctd to Vs/, unlss othrwis notd. Channl Sparation (db) - - - - - -7-8 -9 - - - Channl Sparation vs. Frquncy. Prcnt of Amplifirs (%) 8 9 Offst Voltag Production Distribution Typical production distribution of packagd units. -8-7 - - - - - - 7 8 Offst Voltag (mv) 8
SGM8// SGM8/ APPLICATION NOTES Driving Capacitiv Loads Th SGM8x family is optimizd for bandwidth and spd, not for driving capacitiv loads. Output capacitanc will crat a pol in th amplifir s fdback path, lading to xcssiv paking and potntial oscillation. If daling with load capacitanc is a rquirmnt of th application, th two stratgis to considr ar () using a small rsistor in sris with th amplifir s output and th load capacitanc and () rducing th bandwidth of th amplifir s fdback loop by incrasing th ovrall nois gain., Rail-to-Rail Output For th high spd oprational amplifir, soldring th part to th board dirctly is strongly rcommndd. Try to kp th high frquncy big currnt loop ara small to minimiz th EMI (lctromagntic intrfacing). V DD μf V DD μf.μf Figur shows a unity gain followr using th sris rsistor stratgy. Th rsistor isolats th output from th capacitanc and, mor importantly, crats a zro in th fdback path that compnsats for th pol cratd by th output capacitanc. Vn Vp SGM8.μF V OUT Vn Vp SGM8 μf V OUT R ISO V IN SGM8 C LOAD V OUT V SS(GND).μF Figur. Sris Rsistor Isolating Capacitiv Load Powr-Supply Bypassing and Layout Th SGM8x family oprats from ithr a singl +.7V to +.V supply or dual ±.V to ±.7V supplis. For singl-supply opration, bypass th powr supply V DD with a.µf cramic capacitor which should b placd clos to th V DD pin. For dual-supply opration, both th V DD and th V SS supplis should b bypassd to ground with sparat.µf cramic capacitors..µf tantalum capacitor can b addd for bttr prformanc. Good PC board layout tchniqus optimiz prformanc by dcrasing th amount of stray capacitanc at th op amp s inputs and output. To dcras stray capacitanc, minimiz trac lngths and widths by placing xtrnal componnts as clos to th dvic as possibl. Us surfac-mount componnts whnvr possibl. V SS Figur. Amplifir with Bypass Capacitors Grounding A ground plan layr is important for high spd circuit dsign. Th lngth of th currnt path spd currnts in an inductiv ground rturn will crat an unwantd voltag nois. Broad ground plan aras will rduc th parasitic inductanc. Input-to-Output Coupling To minimiz capacitiv coupling, th input and output signal tracs should not b paralll. This hlps rduc unwantd positiv fdback. 9
SGM8// SGM8/, Rail-to-Rail Output ICAL APPLICATION CIRCUITS Diffrntial Amplifir Th circuit shown in Figur prforms th diffrnc function. If th rsistors ratios ar qual (R / R = R / R ), thn V OUT = ( Vp - Vn ) R / R + V REF. R Driving Vido Th SGM8x can b usd in vido applications lik in Figur. V IN SGM8 7Ω Vn R 7Ω CABLE Vp SGM8 V OUT R G R F 7Ω V OUT R R G = + R F / R G V REF Figur. Typical Vido Driving Figur. Diffrntial Amplifir Low Pass Activ Filtr Th low pass filtr shown in Figur has a DC gain of (-R /R ) and th db cornr frquncy is /πr C. Mak sur th filtr is within th bandwidth of th amplifir. Th Larg valus of fdback rsistors can coupl with parasitic capacitanc and caus undsird ffcts such as ringing or oscillation in high-spd amplifirs. Kp rsistors valu as low as possibl and consistnt with output loading considration. C R R V IN SGM8 V OUT R = R //R Figur. Low Pass Activ Filtr
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS SOT- D b L θ. Symbol In Millimtrs In Inchs Min Max Min Max A....9 A.... E A E L C A.... b.... c....8 D.8...9 E..7.9.7 E..9...9.7.8..7.79 A A L.7REF.8REF L.... θ 8 8
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS SOT- D θ. In Millimtrs In Inchs Symbol Min Max Min Max A....9 L A.... A.... b.... E E c....8 D.8...9 E..7.9.7 b A L C E..9...9.7.8..7.79 L.7REF.8REF A A L.... θ 8 8
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS SO-8 C L θ E E B D A A A Symbol In Millimtrs In Inchs Min Max Min Max A..7..9 A.... A.... B.... C.9..7. D.78..88.97 E.8...7 E.8..8.8.7. L..7.. θ 8 8
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS MSOP-8 b C L Symbol In Millimtrs In Inchs E E Min Max Min Max A.8...7 A....8 A.7.97..8 b.. C.. A θ A A D.9..... E.9... E.7..8. L.... θ D
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS MSOP- b C Symbol In Millimtrs In Inchs L Min Max Min Max A.8...7 A....8 E E θ A A.7.97..8 b.. C.. D.9..... E.9... A A E.7..8. L.... θ D
SGM8// SGM8/, Rail-to-Rail Output PACKAGE OUTLINE DIMENSIONS SO- E E A A A BASE METAL θ θ c c INDEX Φ.8±. DEP.±. b D b b Φ.±. BTM E-MARK DEP.±.. M. A WITH PLATING L R R h θ h θ B B L L θ Symbol In Millimtrs MIN NOM MAX A...7 A... A... A...7 b..9 b... c.. c... D 8. 8. 8.7 E.8.. E.8.9..7 BSC L...8 L. REF L. BSC R.7 R.7 h... θ 8 θ 8 θ 8 θ 7 9 θ 7 9 SECTION B-B
SGM8// SGM8/ PACKAGE OUTLINE DIMENSIONS, Rail-to-Rail Output TSSOP- E # PIN D + INDEX Φ.±.. -. DEP A E A A A c B c B L BASE METAL θ S R R L L b b θ θ Symbol In Millimtrs MIN NOM MAX A. A.. A.9.. A... b..8 b... c..9 c... D.8.9. E... E.... BSC L...7 L. REF L. BSC R.9. SECTION B-B R.9 S. θ 8 θ θ / REV. D. SGMICRO is ddicatd to provid high quality and high prformanc analog IC products to customrs. All SGMICRO products mt th highst industry standards with strict and comprhnsiv tst and quality control systms to achiv world-class consistncy and rliability. For information rgarding SGMICRO Corporation and its products, s 7