NS LM111/LM211 voltage comparator general description The LM111 and LM211 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or {M710. They are also 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 voltages up to 50V at currents as high as 50mA. Out- standing characteristics include: @ Operates from single 5V supply @ Input current: 150 nA max. over temperature @ Offset current: 20 nA max. over temperature Voltage Comparators Differential input voltage range: +30V Power consumption: 135 mW at t15V Both the inputs and the outputs of the LM111 or the LM211 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 siower than the LM106 and LM710 (200 ns response time vs 40 ns) the devices are also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LMt06 and LM710. The LM211 is identical to the LM111, except that its performance is specified over a -25C to 85C temperature range instead of -65C to 125C. schematic diagram and auxiliary circuits ** BALANCE/STROSE BALANCE 5 5 as Ba 300 $ 300 5 bye > Ry ns og oe 2 ? 1.3K 13k , b , RO ass ano 5 600 4 nS val 1? azo $a $A a5 Sak D 12K 4 Yr 0" se we a3 aa R10 + fren Ne as lg >} output inputs Por ot - ang y 5V : 04 - a2 a2 ang n0$ za 015 > a2 on S Rig Rie 280 200 a6 b ass Increases typical cammon mode os slew from 7.0V/us to 18V/us. connection diagrams Metal Can Fiat Package crounn re raf v weut T Laan} DUTRUT wut Soh sf wc wees 7 gacancer ows 6) wacance Note: Pin 4 connected ta case. Note: Pin connected to bottam of package. Tor view Tar view Order Number LM177H of LM271H See Package 11 Order Number LM111F or LM211F See Package 3 **Pin connections shown are for metal can. BALANCE &M1117D or LM2T1D Dual-In-Line = GR typical applications UO b 14 Ineuts ONC pm 12 we ba ty vt i 18 Nc m, t$ GUTPUT outruy Lg BALANCE STAQSE Note: Pin 6 connected to bottom of package. Top view maGHETIC PICKUP Order Number Oetector for Magnetic Transducer See Package 1 Increasing Input Stage Current* LOWT/LiLWLM111/LM211 absolute maximum ratings Totai Supply Vottage (V3.4) 36V Output to Negative Supply Voltage (V74) 50V Ground ta Negative Supply Voltage (V, 4) 30V Differential Input Voltage +30V Input Voltage (Note 1) +15V Power Dissipation (Note 2) 500 mw Output Short Circuit Duration 10 sec Operating Temperature Range LM111 LM211 Storage Temperature Range ~-55C to 125C -25C to 85C -65C to 150C Lead Temperature (soldering, 10 sec) 300C electrical characteristics (note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS input Offset Voltage (Note 4) Ta = 25C, Rg < 50k 0.7 3.0 mV Input Offset Current (Note 4) Ty = 25C 4.0 10 nA Input Bias Current Ta = 25C 60 100 nA Voltage Gain Ta = 25C 200 VimvV Response Time (Note 5) T, = 26C 200 ns Saturation Voltage Vin <-S MV, lout =50mA Ta = 25C 0.75 15 Vv Strobe On Current Ta = 25C 3.0 mA Output Leakage Current Vin 2>5mV, Vout = 35V Ta = 25C 0.2 10 nA Input Offset Voltage (Note 4) Rg < 50k 4.0 mV Input Offset Current (Note 4) 20 nA Input Bias Current 150 nA Input Voitage Range +14 Vv Saturation Voltage vt > 4.5V, V7 =0 Vin S-6 MV, Ising <BMA 0.23 0.4 Vv Output Leakage Current Vin 25 MV, Vour =35V 0.1 0.5 BA Positive Supply Current Ta = 25C 5.1 6.0 mA Negative Supply Current Ta = 25C 41 5.0 mA Note 1: This rating applies for 15V supplies. The positive input voitage 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. Note 2: The maximum junction temperature of the (M111 is 150C, while that of the LM211 is 110C. For Operating at elevated temperatures, devices in the TO-5S package must be derated based on a thermal resistance of 150C/W, junction to ambient, or 45C/W, junction to case. For the flat package, the derating is based on a thermal resistance of 185C/W when mounted on a 1/16-inch-thick epoxy glass board with ten, 0.03-inch-wide, 2-ounce copper conductors. The thermal resistance of the dual-in-line package is 100C/W, junction to ambient. Note 3: These specifications apply for Vg = t15V and -55C <T, < 128C, unless otherwise stated. With the LM211, however, all temperature specifications are limited to -25C <Ta <85C. The off- set voltage, offset current and bias current specifications apply for any supply voltage from a single 5V supply up to 15V supplies. Note 4: The offset voltages arid offset currents given are the maximum values required to drive the output within a volt of either supply with a 1 mA load. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance. Note 5: The response time specified (see definitions) is for a 100 mV input step with mV overdrive.typical performance characteristics Input Bias Current Input Offset Current 20 INPUT BIAS CURRENT (nA) INPUT OFFSET CURRENT (nA) o ~-35-15 25 46 65 85 105 125 -5 -35 -15 5 25 45 65 &@5 105 125 TEMPERATURE (C) TEMPERATURE (C) Input Characteristics Common Mode Limits yt z Ts = = Es = =z = a & 8-18 3 = a @ Ss o os = 5 3 = o 02 -16 -12 -8 -4 0 4 8 12 16 ~5 ~-35 -15 5 25 45 65 85 105 125 OIFFERENTIAL INPUT VOLTAGE (Vv) TEMPERATURE (C) Response Time for Various Response Time for Various s Input Overdrives 5 Input Overdrives a w o o < < - - S a 4 > > 5 5 3 & & 2 omit = 2 oe 1 sv z $ soon z a ww bv, uw 0 3 our 8 5 cwit 5 50 = 215 = S -100 Ta = 25C 5 5 = 0 02 | ed 0 02 04 06 TIME (us) TIME (us) Response Time for Various Response Time for Various > Input Overdrives > lnput Overdrives wt w 2 20 @ Zz 5 $ S - 5 5 E & 3 ~ LM1tt Ss z z wu w s 2 = - 2 3 $ > - e > > = o 1 2 3 4 z TIME (us) TIME (us} SATURATION VOLTAGE (V) OUTPUT VOLTAGE {V)} EQUIVALENT INPUT OFFSET VOLTAGE imv) SHORT CIRCUIT CURRENT (mA} 0.1 50 30 20 10 o8 07 0.6 0s 04 03 02 a4 6 140 120 100 80 60 40 20 Offset Error Ta = 25C 10k 100k i 10M (INPUT RESISTANCE (52) Transfer Function A= 1K me = vw T, = 28C FOLLOWER OUTPUT R, = 8002 -1 -5 Q 4 1 DIFFERENTIAL INPUT VOLTAGE (m} Output Saturation Voltage Tar Tat 0 10 20 30 40 5D OUTPUT CURRENT (mA) Output Limiting Characteristics Ta = 25C a 10 at OUTPUT VOLTAGE (V) (0 NOILVAISSIG UIMOd LEZ T/LLLINNTLM111/LM211 typical applications (con't) typical performance characteristics (cont) Supply Current Supply Current Leakage Currents 6 10 10-7 Ta = 25C 5 = SUPPLY zit = i. = ourpuT = 5 4 = 6 POSITIVE SUPPLY 5 a OUTPUT LOW 5 z 3 AND = wy 10% s NEGATIVE SUPPLY-| 3 3 oe OUTPUT HIGH > ANO = z & SUPPLY- Sgro HIGH a4 2 6 Q we re ee er) 85-35-15 6 25 45 65 86 105 125 SUPPLY VOLTAGE (V) TEMPERATURE (C) TEMPERATURE (C) savant be wave auteur *TTL or OTL Fanout of two. 100 kHz Free Running Multivibrator a 00 9 ! a tt 180 pF a av we ? TRIANGULAR tov a sv 2 a rerernamaimnemnnae WAVE wor . OuTPUT Input polarity is reversed Saves when using pin 1 as output. a or sam_] none e ae l ms Rive Driving Ground-Referred Load as mK } | Oe Wits: a mr Bane = wy sauane wave vagy at oureur at$ * -ROM m9 uu * Adjust to symmetrical squart: 2 . me twoRK wave time when Viy = 5 mV. + tMinimum capacitance 20 pF. ue hn oan 2 oR xy Maximum frequency 50 kHz. " c * -18v ANALOG (NPUT 10 Hz to 10 kHz Voltage Controlled Oscillator Using Clamp Diodes to Improve Response We bY a vow Ra 10K 2 a on mou yo mtasic | a car an *Values shown are for ne b ourrur a a0 to 30V logic swing van . and a 15V threshold. tT TMay be added to con- + twol speed and reduce susceptability to naise spikes. ~ TTL tnterface with High Level Logic Crystal Oscitlator Comparator and Solenoid Driver 1-18typical applications (cont) a voy 1 34K o a ms 1" J Wen. 2187 a 1 or ae a: Th an itt rut 2 OTN ure o _ a mas *Solid tantalum e 2K . Low Valtage Adjustable Reference Supply Solid tantalum oh Tadjust to set clamp level Precision Squarer bourrut Zero Crossing Detector driving MOS logic *Solid tantalum ow L ~ FROM TTL cate opureur *Solid tantalum Negative Peak Dectector FROM D/A WETWORK a 21 tweut Digital Transmission Isolator ro] R outs mt auteur mu sTROME *Typical input current is 50 pA with inputs strobed off. = Strobing off Both Input* and Output Stages voK a 0K oat a ot 2w8P35 aa ne a a oe a a Switching Power Amplifier 2nztz2 *R2 sets the comparison level. At comparison, the photodiode has less than 5 mV across it, decreasing leakages by. an arder of magnitude. * Absorbs inductive kickback of relay and protects IC from severe voltage transients on V** tine, ion Photodiode Comparator Relay Driver with Strobe +, Tiaras " oo 1 furenence = wrUr Switching Power Amplifier 1-19 LLZWNT/LLLING