NS Voltage Comparators LM319 high speed dual comparator general description The LM319 is a precision high speed dual com- s Minimum fan-out of 2 each side parator fabricated on a single monolithic chip. It is = Maximum input current of 1 uA designed to operate over a wide range of. supply . Inputs and outputs can be isolated from system ground High common mode slew rate voltages down to a single 5V logic supply and ground. Further, it has higher gain and lower input currents than devices like the LM710. The uncommitted collector of the output stage makes the LM319 compatible with RTL, DTL and TTL as well as capable of driving lamps. and relays at currents up to 25 mA. Although designed primarily for appfications requiring operation from digital logic supplies, the LM319 is fully specified for power supplies up to t15V. It features faster response than the LM111 at the expense of higher power dissipation. How- ever, the high speed, wide operating voltage range features and low package count make the LM319 much = Two independent comparators more versatile than older devices like the LM711. = Operates from a single 5V supply The LM319 has its performance specified over a = Typically 80 ns response time at +15V 0C to 70C temperature range. schematic and connection diagrams ah . Dual In-Line-Package Metal Can Package* mn gR : ? 3 U _ Law ro = auTeury Gwor Mo ee Ty " OUTPUT? 74 pi GNOZ tPin 5 connected to case. ns OP VE a u ror ven ms | on Order Number Order Number , c A LM319D LH319H me we See package 1 See Package 12 LM319N he w See Package 22 v A See 3 ' a sa Mae p TTL ouTPuT SOUARE WAVE OUTPUT be Cae Vour = SV for Co Vor <Vin < Vur rr Vour = 0 for + Vin < Vir or Vin > Yur " q L . " Frequency adjust. Relay Driver Window Detector . tMust be buffered for Ry < 10 Megohms. > vase + Lf tata Wide Range Variable Oscillator 1-27 6LEWT LM319 absolute maximum ratings Total Supply Voltage 36V Power Dissipation (Note 2) 500 mw Output to Negative Supply Voltage 36V Output Short Circuit Duration 10 sec Ground to Negative Supply Voltage 25V Operating Temperature Range LM319 0C to 70C Ground to Positive Supply Voltage 18V Storage Temperature Range -65C to 150C Differential Input Voltage +5V Lead Temperature (Soldering, 10 sec) 300C Input Voltage (Note 1) +15V electrical characteristics (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Input Offset Voltage (Note 4) Ta = 25C, Rg < 5k 2.0 8.0 mV Input Offset Current (Note 4) Ta = 26C 80 200 nA Input Bias Current Ta = 28C 250 1000 nA Voltage Gain Ta = 25C 8 40 Vien Response Time (Note 5) Ta= 25C Vg = +15V 80 ns Saturation Voltage Vin S-10 MV, lour = 25 mA Ta = 25C 0.75 15 Vv Output Leakage Current Vin 2 10 MV, Vout = 35V Ta = 28C 0.2 10 uA Input Offset Voltage (Note 4) Re < 5k 10 mV Input Offset Current (Note 4} 300 nA tnput Bias Current 1200 nA input Voitage Range Vs = t15V +13 v Vv" =5V,V>=0 1 3 Vv Saturation Voltage v*>4.5V, V7=0 0.3 0.4 Vin <-10 mV, Isink < 3.2 MA Differential tnput Voltage +5 Vv Positive Supply Current Ta = 25C, V* =5V,V=0 4.3 mA Positive Supply Current Ta = 25C Vg = +15V 8 12.5 mA Negative Supply Current Ta = 25C Vg = t15V 3 5 mA Note 1: For supply voltages less than +15 the absolute maximum input vottage is equal to the supply voltage. Note 2: The maximum junction temperature of the LM319 is 85C. 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, or 45 C/W, junction to case. The thermal resistance of the dual-in-line package is 100 C/W, junction to ambient. Note 3: These specifications apply for Vg = +15V and -0C <Ta < 70C, unless otherwise stated. The offset voltage, offset current and bias current specifications apply for any supply voltage from a single 5V supply up to +16V supplies. Note 4: The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either suppty 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 tirne specified is for a 1006 mV input step with 5 mV overdrive. typical performance characteristics Input Currents Supply Currents Response Time for Various Input Overdrives 300 J 12 Vs = 15 [ | = 4. 280 = 2" vee Sa 2.0 mv = ee < POSITIVE SUPPLY, Vs = +15V ae : BIAS = Log t 58 = 80 aa 200, a | $ 5.0 mV @ = 6.0 7 t 5 a POSITIVE SUPPLY, Vs* = 5.0V, Vs~ = 0 = Vs = 5.0V - | 2a 2 Ay = 500s: = 40 t = 1. = 00s? 5 3 jj jt Sy vitesov = 100 ~~ OFFSET [NEGATIVE SUPPLY, Vs = 215V _. 2 Ta = 25C 20 2 || 8 50 > 0 i 20 30 40 50 60 70 Q 10 20 30 40 50 60 670 0 50 100 150 200 250 300 350 TEMPERATURE (C) TEMPERATURE (*C) TIME (ns) 1-28