SGM8621/2/3/4 250µA, 3MHz, Rail-to-Rail I/O CMOS Operational Amplifiers

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1 PRODUCT DESCRIPTION Th SGM86(singl), SGM86(dual), SGM86(singl with shutdown) and SGM864(quad) ar low nois, low voltag, and low powr oprational amplifirs, that can b dsignd into a wid rang of applications. Th SGM86///4 hav a high gain-bandwidth product of MHz, a slw rat of.7v/µs, and a quiscnt currnt of 5µA/amplifir at 5V. Th SGM86 has a powr-down disabl fatur that rducs th supply currnt to 5nA. Th SGM86///4 ar dsignd to provid optimal prformanc in low voltag and low nois systms. Thy provid rail-to-rail output swing into havy loads. Th input common-mod voltag rang includs ground, and th maximum input offst voltag is mv for SGM86///4. Thy ar spcifid ovr th xtndd industrial tmpratur rang ( 4 to +5 ). Th oprating rang is from.5v to 5.5V. Th singl vrsion, SGM86/86, is availabl in SC7-5, SO-8 and SOT-5(6) packags. Th dual vrsion SGM86 is availabl in SO-8 and MSOP-8 packags. Th quad vrsion SGM864 is availabl in SO-4 and TSSOP-4 packags. APPLICATIONS Snsors Audio Activ Filtrs A/D Convrtrs Communications Tst Equipmnt Cllular and Cordlss Phons Laptops and PDAs Photodiod Amplification Battry-Powrd Instrumntation FEATURES Low Cost Rail-to-Rail Input and Output.7mV Typical V OS High Gain-Bandwidth Product: MHz High Slw Rat:.7V/µs Sttling Tim to.% with V Stp:.µs Ovrload Rcovry Tim: µs Low Nois : nv/ Hz Oprats on.5v to 5.5V Supplis Input Voltag Rang = -.V to +5.6V with V S = 5.5V Low Powr 5µA/Amplifir Typical Supply Currnt SGM86 5nA whn Disabld Small Packaging SGM86 Availabl in SC7-5, SOT-5 and SO-8 SGM86 Availabl in MSOP-8 and SO-8 SGM86 Availabl in SOT-6 and SO-8 SGM864 Availabl in TSSOP-4 and SO-4 PIN CONFIGURATIONS (Top Viw) -IN A +IN A -VS OUT -VS SGM86 +IN 4 4 SOT-5 /SC7-5 SGM VS -IN 7 OUT B OUT B 7 -IN B +IN B NC -IN +IN -VS OUT 6 +VS -VS 5 DISABLE OUT A -IN A +IN 4 -IN +IN A SOT-6 +VS 4 SGM86 +INB 5 OUT A 8 +VS -INB 6 4 SGM86/86 NC = NO CONNECT SO-8 SGM864 TSSOP-4 / SO-4 8 DISABLE (SGM86 ONLY) 7 +VS 6 OUT 5 4 NC OUT D -IND +IND -VS +INC 9 -INC 8 OUT C SO-8 / MSOP-8 REV. B.

2 PACKAGE/ORDERING INFORMATION MODEL ORDER NUMBER PACKAGE DESCRIPTION PACKAGE OPTION MARKING INFORMATION SGM86 SGM86 SGM86 SGM864 SGM86XC5/TR SC7-5 Tap and Rl, 86 SGM86XN5/TR SOT-5 Tap and Rl, 86 SGM86XS/TR SO-8 Tap and Rl, 5 SGM86XS SGM86XMS/TR MSOP-8 Tap and Rl, SGM86XMS SGM86XS/TR SO-8 Tap and Rl, 5 SGM86XS SGM86XN6/TR SOT-6 Tap and Rl, 86 SGM86XS/TR SO-8 Tap and Rl, 5 SGM86XS SGM864XS4/TR SO-4 Tap and Rl, 5 SGM864XS4 SGM864XTS4/TR TSSOP-4 Tap and Rl, SGM864XTS4 Not: SC7-5 packag is sam as SOT-5 packag. ABSOLUTE MAXIMUM RATINGS Supply Voltag, V+ to V V Common-Mod Input Voltag... (-V S ) -.5V to (+V S ) +.5V Storag Tmpratur Rang to +5 Junction Tmpratur...6 Oprating Tmpratur Rang to +5 Packag Thrmal T A = 5 SC7-5, θ JA... /W SOT-5, θ JA... 9 /W SOT-6, θ JA... 9 /W SO-8, θ JA...5 /W MSOP-8, θ JA... 6 /W Lad Tmpratur Rang (Soldring sc)....6 ESD Suscptibility HBM...5V MM...4V 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.

3 ELECTRICAL CHARACTERISTICS: V S = +5V (At T A = +5, V CM = Vs/, R L = 6Ω, unlss othrwis notd.) SGM86///4 PARAMETER CONDITIONS MIN/MAX OVER TEMPERATURE to -4-4 to UNITS 7 to 85 5 MIN/ MAX INPUT CHARACTERISTICS Input Offst Voltag (V OS ) mv MAX Input Bias Currnt (I B ) pa Input Offst Currnt (I OS ) pa Common-Mod Voltag Rang (V CM ) V S = 5.5V -. to +5.6 V Common-Mod Rjction Ratio(CMRR) V S = 5.5V, V CM = -.V to 4V db MIN V S = 5.5V, V CM = -.V to 5.6V db MIN Opn-Loop Voltag Gain ( A OL) R L = 6Ω, Vo =.5V to 4.85V db MIN R L =KΩ, Vo =.5V to 4.95V db MIN Input Offst Voltag Drift ( V OS/ T).7 µv/ OUTPUT CHARACTERISTICS Output Voltag Swing from Rail R L = 6Ω. V R L = KΩ.5 V Output Currnt (I OUT) ma MIN Closd-Loop Output Impdanc F = khz, G = +.6 Ω POWER-DOWN DISABLE Turn-On Tim 6. ns Turn-Off Tim.4 ns DISABLE Voltag-Off.8 V MAX DISABLE Voltag-On V MIN POWER SUPPLY Oprating Voltag Rang V MIN V MAX Powr Supply Rjction Ratio (PSRR) V s = +.5V to +5.5V V CM = (-V S ) +.5V db MIN Quiscnt Currnt/ Amplifir (I Q ) I OUT = µa MAX Supply Currnt whn Disabld (SGM86 only) 5 na MAX DYNAMIC PERFORMANCE Gain-Bandwidth Product (GBP) R L = KΩ MHz Phas Margin (φ O) 67 Dgrs Full Powr Bandwidth (BW P) <% distortion, R L = 6Ω 5 khz Slw Rat (SR) G = +, V Stp, R L = KΩ.7 V/µs Sttling Tim to.%( t S) G = +, V Stp, R L = 6Ω. µs Ovrload Rcovry Tim V IN Gain = Vs, R L = 6Ω µs NOISE PERFORMANCE Voltag Nois Dnsity ( n) f = khz nv/ Hz Currnt Nois Dnsity( i n) f = khz fa/ Hz Spcifications subjct to changs without notic.

4 ICAL PERFORMANCE CHARACTERISTICS (At T A = +5, V CM = Vs/, R L = 6Ω, unlss othrwis notd.) Output Voltag (V p-p ) Closd-Loop Output Voltag Swing V IN = 4.9V P-P T A = 5 R L = kω G = Output Impdanc (Ω) Output Impdanc vs. Frquncy G = G = G = Frquncy (khz). Frquncy (khz) V S = ±.5V V IN = 5mV R L = 6Ω G = Positiv Ovrload Rcovry Ngativ Ovrload Rcovry V S = ±.5V V IN = 5mV R L = 6Ω G = V.5V V.5V V V -5mV -5mV Tim (5µs/div) Tim (µs/div) Larg-Signal Stp Rspons G = + C L = pf R L = 6Ω Small-Signal Stp Rspons G = + C L = pf R L = 6Ω Voltag (V/div) Voltag (5mV/div) Tim (µs/div) Tim (µs/div) 4

5 ICAL PERFORMANCE CHARACTERISTICS (At T A = +5, V CM = Vs/, R L = 6Ω, unlss othrwis notd.) PSRR (db) PSRR vs. Frquncy Frquncy (khz) CMRR (db) CMRR vs. Frquncy.. Frquncy (khz) Small-Signal Ovrshoot vs. Load Capacitanc Channl Sparation vs. Frquncy Small-Signal Ovrshoot (%) R L = kω T A = 5 G = +OS -OS Channl Sparation (db) 4 9 R L = 6Ω T A = 5 G = Load Capacitanc (pf) 8. Frquncy (khz) CMRR vs. Tmpratur PSRR vs. Tmpratur V S = 5.5V V CM = -.V to 4V V S =.5V to 5.5V CMRR (db) 9 8 V CM = -.V to 5.6V PSRR (db) Tmpratur ( ) Tmpratur ( ) 5

6 ICAL PERFORMANCE CHARACTERISTICS (At T A = +5,V CM = Vs/, R L = 6Ω, unlss othrwis notd.) Opn Loop Gain (db) Opn-Loop Gain vs. Tmpratur R L = KΩ R L = 6Ω Tmpratur ( ) Supply Currnt (µa) Supply Currnt vs. Tmpratur V S = V V S =.5V Tmpratur ( ) Shutdown Currnt (na) Shutdown Currnt vs. Tmpratur 8 V 5 S = 5V V S = V 9 6 V S =.5V Tmpratur ( ) Output Voltag (V) 5 4 Output Voltag Swing vs. Output Currnt Sourcing Currnt -5 Sinking Currnt Output Currnt (ma) Output Voltag Swing vs. Output Currnt Sourcing Currnt.5 Closd-Loop Output Voltag Swing Output Voltag (V) V S = V Sinking Currnt 4 5 Output Currnt (ma) Output Voltag (V p-p ).5.5 V S =.7V V IN =.6V P-P T A = 5 R L = KΩ G = Frquncy (khz) 6

7 ICAL PERFORMANCE CHARACTERISTICS (At T A = +5, V CM = Vs/, R L = 6Ω, unlss othrwis notd.) Output Impdanc (Ω) Output Impdanc vs. Frquncy 4 V S =.7V 8 G = 6 4 G = G =. Frquncy (khz) Small-Signal Ovrshoot (%) Small-Signal Ovrshoot vs. Load Capacitanc 7 V S =.7V 6 R L = kω 5 T A = 5 G = 4 +OS -OS Load Capacitanc (pf) Channl Sparation (db) 4 9 Channl Sparation vs. Frquncy V S =.7V R L = 6Ω T A = 5 G = Voltag Nois (nv/ Hz) Input Voltag Nois Spctral Dnsity vs. Frquncy 8. Frquncy (khz) Frquncy (Hz) Larg-Signal Stp Rspons Small-Signal Stp Rspons Voltag ( 5mV/div) V S =.7V G = + C L = pf R L = 6Ω Voltag (5mV/div) V S =.7V G = + C L = pf R L = 6Ω Tim (µs/div) Tim (µs/div) 7

8 ICAL PERFORMANCE CHARACTERISTICS (At T A = +5, V CM = Vs/, R L = 6Ω, unlss othrwis notd.) Prcnt of Amplifirs (%) Offst Voltag Production Distribution Typical production distribution of packagd units Offst Voltag (mv).5 8

9 APPLICATION NOTES Driving Capacitiv Loads Th SGM86x can dirctly driv pf in unity-gain without oscillation. Th unity-gain followr (buffr) is th most snsitiv configuration to capacitiv loading. Dirct capacitiv loading rducs th phas margin of amplifirs and this rsults in ringing or vn oscillation. Applications that rquir gratr capacitiv driv capability should us an isolation rsistor btwn th output and th capacitiv load lik th circuit in Figur. Th isolation rsistor R ISO and th load capacitor C L form a zro to incras stability. Th biggr th R ISO rsistor valu, th mor stabl V OUT will b. Not that this mthod rsults in a loss of gain accuracy bcaus R ISO forms a voltag dividr with th R LOAD. V IN SGM86 R ISO C L V OUT Figur. Indirctly Driving Havy Capacitiv Load An improvmnt circuit is shown in Figur. It provids DC accuracy as wll as AC stability. R F provids th DC accuracy by conncting th invrting signal with th output. C F and R Iso srv to countract th loss of phas margin by fding th high frquncy componnt of th output signal back to th amplifir s invrting input, thrby prsrving phas margin in th ovrall fdback loop. C F Powr-Supply Bypassing and Layout Th SGM86x family oprats from ithr a singl +.5V to +5.5V supply or dual ±.5V to ±.75V 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. For th 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 Vn Vp V DD SGM86 µf.µf V OUT Vn Vp SGM86.µF µf V OUT SGM86 R ISO R F V OUT V SS (GND).µF V IN C L Figur. Indirctly Driving Havy Capacitiv Load with DC Accuracy For no-buffr configuration, thr ar two othrs ways to incras th phas margin: (a) by incrasing th amplifir s gain or (b) by placing a capacitor in paralll with th fdback rsistor to countract th parasitic capacitanc associatd with invrting nod. R L V SS Figur. Amplifir with Bypass Capacitors Grounding A ground plan layr is important for SGM86x 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

10 ICAL APPLICATION CIRCUITS Diffrntial Amplifir Th circuit shown in Figur 4 prforms th diffrnc function. If th rsistors ratios ar qual (R 4 / R = R / R ), thn V OUT = ( Vp Vn ) R / R + V REF. Vn Vp R R R 4 R SGM86 V OUT Low Pass Activ Filtr Th low pass filtr shown in Figur 6 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. V IN R R C V REF SGM86 V OUT Figur 4. Diffrntial Amplifir Instrumntation Amplifir Th circuit in Figur 5 prforms th sam function as that in Figur 4 but with th high input impdanc. R =R //R Figur 6. Low Pass Activ Filtr Vn SGM86 R R SGM86 V OUT Vp SGM86 R R 4 V REF Figur 5. Instrumntation Amplifir

11 PACKAGE OUTLINE DIMENSIONS SC7-5 / SOT-5 b D A E A A L L C θ. E Symbol In Millimtrs In Inchs Min Max Min Max A A....4 A b C D E E L.55REF.REF L θ 8 8

12 PACKAGE OUTLINE DIMENSIONS SOT-5 D b L θ. Symbol In Millimtrs In Inchs Min Max Min Max A A....4 A b E E C D A A E A L C E L.7REF.8REF L θ 8 8

13 PACKAGE OUTLINE DIMENSIONS SOT-6 D L θ. In Millimtrs In Inchs Symbol Min Max Min Max A A....4 A E E b C D b L C E E A A A L.7REF.8REF L θ 8 8

14 PACKAGE OUTLINE DIMENSIONS SO-8 D C Symbol In Millimtrs In Inchs L Min Max Min Max A A θ E E B A A A A B..5.. C D E E L θ 8 8 4

15 PACKAGE OUTLINE DIMENSIONS MSOP-8 b C L Symbol In Millimtrs In Inchs E E Min Max Min Max A A....8 A b.. C.5.6 A θ A A D E E L θ 6 6 D 5

16 PACKAGE OUTLINE DIMENSIONS SO-4 E E A A A BASE METAL θ θ4 INDEX Φ.8±. DEP.±. b D b b Φ.±. BTM E-MARK DEP.±.5.5 M. A WITH PLATING L R R θ B B L L θ c c h θ h Symbol In Millimtrs MIN NOM MAX A A..5.5 A A b.6.49 b c.6.5 c.5..5 D E E BSC L L.4 REF L.5 BSC R.7 R.7 h..4.5 θ 8 θ 6 8 θ 6 8 θ θ SECTION B-B 6

17 PACKAGE OUTLINE DIMENSIONS TSSOP-4 E # PIN D + INDEX Φ.± DEP A E A A A B B L BASE METAL c c θ S R R L L b b θ θ Symbol In Millimtrs MIN NOM MAX A. A.5.5 A.9..5 A b..8 b...4 c..9 c...5 D E E BSC L L L. REF.5 BSC R.9. SECTION B-B R.9 S. θ 8 θ 4 θ 4 4/9 REV. B. 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

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