DESCRIPTION The LM111 series are voltage comparators that have input currents approximately a hundred times lower than devices like the A710. They are designed to operate over a wider range of supply voltages; from standard +15V op amp supplies down to the single 5V supply used for IC logic. Their output is compatible with RTL, DTL, and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching volt- ages up to 50V at currents as high as 50mA. Both the inputs and the outputs of the LM111 series can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire ORed. Although slower than the A710 (200ns response time vs 40ns) the devices are also much less prone to spurious oscillations. The LM111 series has the same pin configuration as the A710 series. The LH2111 series hybrids are 2LM111 type comparators in one hermetic package. They feature the same electrical parameters as the single devices. FEATURES Operates from single 5V supply e Maximum input bias current: 150nA (LM311 - 250nA) Maximum offset current: 20nA (LM311 - 50nA) Differential input voltage range: +30V Power consumption: 135mW at +15V ! High sensitivity200V/mV . Military qualification pending ' LH2111 offers close thermal tracking PIN CONFIGURATIONS LM111/211/311-F,N,N-14,T LH2111/2211/2311-F,N,N-14 F,N-14 PACKAGE NC Eq [is] we onp [2] [a] xc ineur [a] 72} Ne inpur [a] a} ve NC (| yo} NC ~ El [3] oureur eacance [5 | 7] BALANCE STROBE ORDER PART NO. UM111F/LM211F/LM211N-14 LM311F/LM311N-14 T PACKAGE outeut | eacancestrRose @ / BALANCE ORDER PART NO. UM1117/LM211T/LM311T N PACKAGE GNO 7] ouTPUT [ ] eaussTRope INPUT [=] [el fe) +1 F PACKAGE - me at Ip e INPUT ] <r Neu ve [a] sacance : A F ORDER PART NO. ORDER PART NO. LM21#N/LM311N LH2111F/LH2211F/LH2311F EQUIVALENT SCHEMATIC . de os a tbo aK OUTPUT at DY 2 Oo Enotes 257 ABSOLUTE MAXIMUM RATINGS LM111/211/311-F,N,N-14,7 LH2111/2211/2311-F,N,N-14 PARAMETER RATING UNIT Total supply voltage 36 v Output to negative supply voltage: LM111/LM211, LH2111/LH2211 50 Vv LM311, LH2311 40 Vv Ground to negative supply voltage 30 Vv Differential input voltage +30 Vv Input voitage! +15 Vv Power dissipation2 500 mW Output short circuit duration 10 sec Operating temperature range LM111, LH2111 ~55 to +125 C LM211, LH2211 -25 to +85 C LM311, LH2311 0 to +70 C Storage temperature range -65 to +150 C Lead temperature 300 C (soldering, 10sec) DC ELECTRICAL CHARACTERISTICS 1.23 LM111/LM211/LH2111/LH2211 LM311/LH2311 PARAMETER TEST CONDITIONS UNIT Min Typ Max Min Typ Max Input offset voltage Ta = 25C, Rs = 50K. o7 3.0 28 75 mV Input offset current4 Ta = 26C 4.0 10 6.0 50 nA Input bias current Ta = 25C 60 100 100 250 nA Voitage gain Ta = 25C 200 200 V/mV Response times Ta = 25C 200 200 ns Saturation voltage Vin = -5mV, lout = 50MA Ta = 25C 0.75 1.5 0.75 1.5 Vv Strobe on current Ta = 25C 3.0 3.0 mA Output leakage current Vin 2 5mV, Vout = 35V Ta = 26C, IstRoBE = 3MA 0.2 10 0.2 50 nA Input offset voltage4 Rs <= 50k0. 4.0 10 mV | input offset current4 20 70 nA Input bias current 150 300 nA Input voltage range +14 +14 Vv Saturation voltage V+ > 4.5V, V- =0 Vin = -6MV, Isink < 8MA 0.23 0.4 0.23 0.4 Vv Output leakage current Vin = 5mV, Vout = 35V 0.1 0.5 BA Positive supply current Ta = 25C 6.1 6.0 5.1 7.5 mA Negative supply current Ta = 25C 4.1 5.0 41 5.0 mA NOTES 1. 258 This rating applies for +15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. . The maximum junction temperature of the LM311,LH2311 is 110C. For operating at elevated temperatures, devices in the TO-5 package must be derated based on a thermal resistance of 150C/W, junction to ambient, in the N package, a thermal resistance of 162C/W, and C/W for the Ceramic package. The maximum junction temperature of the LM111, LH2111 is 150C, white that of the LM211, LH2111is 110C. For operating at elevated temperatures, devices in the TO-5 package must be derated based on a thermal resistance of 150C/W, junstion to ambient. The thermal resistance of the Cerdip package is 110C/W, junction to ambient. . These specifications apply for Vs = +15V and 0C < Ta < 70C unless otherwise specified. With the LM211, LH2111 however, all temperature specifications are limited to -25C < Ta < 85C and for the LM111 and LH2111 are limited to-55C <Ta< 126C. The offset voitage, offset current and bias current specifications apply for any supply voltage from a single 5V supply up to +15V supplies. . The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1mA load. Thus, these parameters define an efror band and take into account the worst case effects of voltage gain and input impedance. . The response time specified (see definitions) is for a 100mV input step with 5mV overdrive. Siqnetics TYPICAL APPLICATIONS ZERO CROSSING DETECTOR DRIVING MOS LOGIC R: 3K mO vt =5V 8 s--O | TOMos LOGIC R3 10K DETECTOR FOR MAGNETIC TRANSDUCER oO v* 5V MAGNETIC PICKUP TTL INTERFACE WITH HIGH LEVEL LOGIC RI 240K INFUT *O---AA-- *Values shown are for a 0 to 30V logic swing and a 15V threshold. +May be added to control speed and reduce susceptability to noise spikes. SiNOTES LM111/211/311-F,N,N-14,T LH2111/2211/2311-F,N,N-14 259