LM311 (KA311) SINGLE COMPARATOR VOLTAGE COMPARATOR The LM311 series is a monolithic, low input current voltage comparator. The device is also designed to operate from dual or single supplies voltage FEATURE Low input bias current : 250nA (Max) Low input offset current : 50nA (Max) Differential Input Voltage : +30V. Offset voltage null capability. Strobe capability. BLOCK DIAGRAM GND fF] 3] Voc Power supply voltage : single 5.0V supply to t15V. 8 DIP 8 SOP ORDERING IN FORMATION INCH [| 7] ouTPUT Device Package Operating Temperature IN (-)]3 6] BALANCE/STROBE LM311N 8 DIP [3| [8] 0 ~ +70C vee [4] fs] BALANCE LM311M 8 SOP SCHEMATIC DIAGRAM BALANCE 9 O Veco OUTPUT IN (+) Qi IN (-) OJ 7 4 OGND OVEE | Rev. B FAIRCHILD SEMICONDUCTOR -w 1999 Fairchild Semiconductor CorporationLM311 (KA311) SINGLE COMPARATOR ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value Unit Total Supply Voltage Veco 36 Vv Output to Negative Supply Voltage KA31 1 Vo - Vee 40 Vv Ground to Negative voltage Vee -30 Vv Differential Input Voltage VupiFr) 30 Vv Input Voltage Vi +15 Vv Output Short Circuit Duration 10 sec Power Dissipation Pp 500 mw Operating Temperature Range Topr 0~ +70 C Storage Temperature Range Tsta - 65 ~ +150 C ELECTRICAL CHARACTERISTICS (Vcc = 15V, Ta = 25C, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Unit Rg<50KQ 1.0 75 Input Offset Voltage p 9 Vio [NOTE 1 10 mv Input Offset Current lio 8 20 nA |NOTE 1 70 Input Bias C ' | 100 250 nA nput Bias Curren BIAS [NOTE 1 300 Voltage Gain Gy 40 200 VimV Response Time tres |NOTE 2 200 ns lo =50mA, Vi<-10mV 0.75 1.5 Saturation Voltage Vat Voc24.5V, Vee = OV 023 0.4 Vv Isink =8mA, Viz-10mV, NOTE 1 , . Strobe NO Current IstRron) 3 mA Ista =3mA, V\210mV Output Leakage Current | 0.2 50 nA p 9 SINK Voyp) =35V, Vee =Vanp =-5V -14.5 -14.7 Input Voltage Range Vur) NOTE 1 to 13.0 1013.8 Vv Positive Supply Current loc 3.0 75 mA Negative Supply Current lee -2.2 -5.0 mA Strobe Current Istr 3 mA NOTE 1.0<Ta$+70C 2. The response time specified is for a 100mV input step with 5mV over drive. ee FAIRCHILD SEMICONDUCTOR -wLM311 (KA311) SINGLE COMPARATOR TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1 INPUT BIAS CURRENT 20 l ~~] Veg= + 15V 500 ieee RAISED | = 400 i = 400 =z vy g 5 2 200 G < a 5 20 < 10 a INORMAL 9 bt -s0 = 25 50 75 100 TEMPERATURE (C) Fig. 3 OFFSET VOLTAGE VS INPUT RESISTANCE 100 Tr = 25C MAXIMUM EQUIVALENT (NPUT OFFSET VOLTAGE (mV) 3 Vio = Vio +A) bio 10K 100K 1M 10M INPUT RESISTANCE (0) Fig. 5 COMMON MODE LIMITS VS TEMPERATURE V+ -05 2 -10 = 5 3 Qo -15 = z 3 5 Zz 04 6 ~5 -3 -15 5 26 45 885 685 6105 125 TEMPERATURE (C) Fig. 2 INPUT OFFSET CURRENT ww Veo + 15V 40) z nN = 5 @ 30 NS s NG 1SED oO e w g DN & 20 Pa 5 J a < 10 Lnnn..NORMAL be, Se 0 ~~b. -50 ~25 o 23 50 75 100 TEMPERATURE (C) Fig. 4 INPUT BIAS CURRENT VS DIFFERENTIAL Veo = + 15V Ta, =25C INPUT BIAS CURRENT (nA) -16 +12 -8 4 0 4 8 2 6 DIFFERENTIAL INPUT VOLTAGE () Fig. 6 OUTPUT VOLTAGE VS DIFFERENTIAL OUTPUT RL=1KQ =40V & 8 OUTPUT VOLTAGE (Vv) -10 -05 o 05 10 OIFFERENTIAL INPUT VOLTAGE (mv) ee FAIRCHILD SEMICONDUCTOR -wLM311 (KA311) SINGLE COMPARATOR Fig. 7 SATURATION VOLTAGE VS CURRENT Fig. 8 SUPPLY CURRENT VS TEMPERATURE OB Vee = + o7 s 06 a =z E # os = s a z ec Oo 04 & 4 > os z 5 3 a2 0.1 0 o 10 20 2 40 50 OUTPUT CURRENT (mA) TEMPERATURE (C) Fig. 9 LEAKAGE CURRENTS VS TEMPERATURE Fig. 10 SUPPLY CURRENT VS SUPPLY VOLTAGE to-8 Ta = 25C Vee = oe z a e = a 7 cz Oo = u 3 oe > 3 z & - a 1o-" 23 35 45 55 6s % TEMPERATURE (C) SUPPLY VOLTAGE (V) Fig. 11 OUTPUT SATURATION VOLTAGE Fig. 12 OUTPUT LIMITING CHARACTERISTICS s z w e z 9 > > oO @ S & a The 8 4 = 85C 0 5 10 5 OUTPUT CURRENT (mA) OUTPUT VOLTAGE (V) Pe FAIRCHILD ee SEMICONDUCTOR -wTRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 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