LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators General Description The LM139 series consists of four independent precision voltage comparators with an offset voltage specification as low as 2 mV max for all four comparators. These were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage. Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM139 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, they will directly interface with MOS logic — where the low power drain of the LM339 is a distinct advantage over standard comparators. Advantages n n n n n Reduced VOS drift over temperature Eliminates need for dual supplies Allows sensing near GND Compatible with all forms of logic Power drain suitable for battery operation Features n Wide supply voltage range — LM139/139A Series 2 to 36 VDC or ± 1 to ± 18 VDC — LM2901: 2 to 36 VDC or ± 1 to ± 18 VDC — LM3302: 2 to 28 VDC or ± 1 to ± 14 VDC n Very low supply current drain (0.8 mA) — independent of supply voltage n Low input biasing current: 25 nA ± 5 nA n Low input offset current: ± 3 mV n Offset voltage: n Input common-mode voltage range includes GND n Differential input voltage range equal to the power supply voltage n Low output saturation voltage: 250 mV at 4 mA n Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems n High precision comparators Connection Diagrams DS005706-27 Order Number LM139AW/883 or LM139W/883 (Note 1) LM139AWRQML and LM139AWRQMLV(Note 3) See NS Package Number W14B LM139AWGRQML and LM139AWGRQMLV(Note 3) See NS Package Number WG14A © 1999 National Semiconductor Corporation DS005706 www.national.com LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators November 1999 LM139/LM239/LM339/LM2901/LM3302 Connection Diagrams (Continued) Dual-In-Line Package DS005706-2 Order Number LM139J, LM139J/883 (Note 1), LM139AJ, LM139AJ/883 (Note 2), LM239J, LM239AJ, LM339J, LM139AJRQML and LM139AJRQMLV(Note 3) See NS Package Number J14A Order Number LM339AM, LM339M or LM2901M See NS Package Number M14A Order Number LM339N, LM339AN, LM2901N or LM3302N See NS Package Number N14A Note 1: Available per JM38510/11201 Note 2: Available per SMD# 5962-8873901 Note 3: See STD Mil Dwg 5962R96738 for Radiation Tolerant Device www.national.com 2 LM139/LM239/LM339 LM139A/LM239A/LM339A LM2901 36 VDC or ± 18 VDC 36 VDC −0.3 VDC to +36 VDC LM3302 28 VDC or ± 14 VDC Supply Voltage, V+ Differential Input Voltage (Note 11) 28 VDC Input Voltage −0.3 VDC to +28 VDC Input Current (VIN < −0.3 VDC), (Note 6) 50 mA 50 mA Power Dissipation (Note 4) Molded DIP 1050 mW 1050 mW Cavity DIP 1190 mW Small Outline Package 760 mW Output Short-Circuit to GND, (Note 5) Continuous Continuous Storage Temperature Range −65˚C to +150˚C −65˚C to +150˚C Lead Temperature (Soldering, 10 seconds) 260˚C 260˚C Operating Temperature Range −40˚C to +85˚C LM339/LM339A 0˚C to +70˚C LM239/LM239A −25˚C to +85˚C LM2901 −40˚C to +85˚C LM139/LM139A −55˚C to +125˚C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260˚C 260˚C Small Outline Package Vapor Phase (60 seconds) 215˚C 215˚C Infrared (15 seconds) 220˚C 220˚C See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. ESD rating (1.5 kΩ in series with 100 pF) 600V 600V Electrical Characteristics (V+ = 5 VDC, TA = 25˚C, unless otherwise stated) Parameter Conditions LM139A Min Typ LM239A, LM339A Max Min Typ LM139 Max Min Typ Units Max Input Offset Voltage (Note 12) 1.0 2.0 1.0 2.0 2.0 5.0 mVDC Input Bias Current IIN(+) or IIN(−) with Output in 25 100 25 250 25 100 nADC Input Offset Current Linear Range, (Note 8), VCM = 0V IIN(+)−IIN(−), VCM = 0V Supply Current V+ = 30 VDC (LM3302, V+ = 28 VDC) (Note 9) RL = ∞ on all Comparators, Voltage Gain RL = ∞, V+ = 36V, (LM3302, V+ = 28 VDC) RL≥15 kΩ, V+ = 15 VDC Input Common-Mode Voltage Range Large Signal Response Time Response Time 3.0 0.8 50 200 Vo = 1 VDC to 11 VDC VIN = TTL Logic Swing, VREF = 1.4 VDC, VRL = 5 VDC, 300 RL = 5.1 kΩ VRL = 5 VDC, RL = 5.1 kΩ, 25 V+−1.5 0 1.3 5.0 2.0 50 50 V+−1.5 0 3.0 0 25 nADC V+−1.5 VDC 0.8 2.0 0.8 2.0 mADC 1.0 2.5 1.0 2.5 mADC 200 50 200 V/mV 300 300 ns 1.3 1.3 µs (Note 10) 3 www.national.com LM139/LM239/LM339/LM2901/LM3302 Absolute Maximum Ratings (Note 13) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. LM139/LM239/LM339/LM2901/LM3302 Electrical Characteristics (Continued) (V+ = 5 VDC, TA = 25˚C, unless otherwise stated) Parameter Conditions LM139A Min Typ Output Sink Current VIN(−) = 1 VDC, VIN(+) = 0, Saturation Voltage VO≤1.5 VDC VIN(−) = 1 VDC, VIN(+) = 0, 250 Output Leakage ISINK≤4 mA VIN(+) = 1 VDC,VIN(−) = 0, 0.1 Current 6.0 LM239A, LM339A Max 16 Min Typ 6.0 16 400 Max LM139 Min Typ 6.0 250 400 16 250 0.1 Units Max mADC 400 0.1 mVDC nADC VO = 5 VDC Electrical Characteristics (V+ = 5 VDC, TA = 25˚C, unless otherwise stated) Parameter Conditions LM239, LM339 Min Typ LM2901 Max Min Typ LM3302 Max Min Typ Units Max Input Offset Voltage (Note 12) 2.0 5.0 2.0 7.0 3 20 mVDC Input Bias Current IIN(+) or IIN(−) with Output in 25 250 25 250 25 500 nADC Input Offset Current Linear Range, (Note 8), VCM = 0V IIN(+)−IIN(−), VCM = 0V 100 nADC V+−1.5 VDC Supply Current V+ = 30 VDC (LM3302, V+ = 28 VDC) (Note 9) RL = ∞ on all Comparators, Voltage Gain RL = ∞, V+ = 36V, (LM3302, V+ = 28 VDC) RL≥15 kΩ, V+ = 15 VDC Input Common-Mode Voltage Range Large Signal Response Time 5.0 50 V+−1.5 0 50 Vo = 1 VDC to 11 VDC VIN = TTL Logic Swing, VREF = 1.4 VDC, VRL = 5 VDC, 5 50 V+−1.5 0 0.8 2.0 0.8 2.0 0.8 2.0 mADC 1.0 2.5 1.0 2.5 1.0 2.5 mADC 200 25 100 300 1.3 2 30 V/mV 300 300 ns 1.3 1.3 µs 16 mADC Response Time RL = 5.1 kΩ, VRL = 5 VDC, RL = 5.1 kΩ, Output Sink Current (Note 10) VIN(−) = 1 VDC, VIN(+) = 0, Saturation Voltage VO≤1.5 VDC VIN(−) = 1 VDC, VIN(+) = 0, 250 Output Leakage ISINK≤4 mA VIN(+) = 1 VDC,VIN(−) = 0, 0.1 0.1 LM139A LM239A, LM339A Current 6.0 3 0 16 6.0 400 16 250 6.0 400 250 500 0.1 mVDC nADC VO = 5 VDC Electrical Characteristics (V+ = 5.0 VDC, (Note 7)) Parameter Conditions Min Typ Max Min Typ LM139 Max Min Typ Units Max Input Offset Voltage (Note 12) 4.0 4.0 9.0 Input Offset Current IIN(+)−IIN(−), VCM = 0V 100 150 100 nADC Input Bias Current IIN(+) or IIN(−) with Output in Linear Range, VCM = 0V (Note 8) V+ = 30 VDC (LM3302, 300 400 300 nADC V+−2.0 VDC 700 mVDC Input Common-Mode Voltage Range Saturation Voltage 0 0 V+−2.0 0 += V 28 VDC) (Note 9) VIN(−) = 1 VDC, VIN(+) = 0, 700 ISINK≤4 mA www.national.com V+−2.0 mVDC 4 700 (Continued) Parameter LM139A Conditions Min Typ LM239A, LM339A Max Min Typ LM139 Max Min Typ Units Max Output Leakage Current VIN(+)= 1 VDC, VIN(−) = 0, VO = 30 VDC, (LM3302, VO = 28 VDC) 1.0 1.0 1.0 µADC Differential Input Voltage Keep all VIN’s≥0 VDC (or V−, 36 36 36 VDC if used), (Note 11) Electrical Characteristics (V+ = 5.0 VDC, (Note 7)) Parameter Conditions LM239, LM339 Min Typ Max LM2901 Min Typ LM3302 Max Min Typ Units Max Input Offset Voltage (Note 12) 9.0 9 15 40 Input Offset Current IIN(+)−IIN(−), VCM = 0V 150 50 200 300 nADC Input Bias Current IIN(+) or IIN(−) with Output in Linear Range, VCM = 0V (Note 8) V+ = 30 VDC (LM3302, V+ = 28 VDC) 400 200 500 1000 nADC V+−2.0 VDC 700 700 mVDC Input Common-Mode Voltage Range (Note 9) Saturation Voltage VIN(−) = 1 VDC, VIN(+) = 0, V+−2.0 700 V+−2.0 0 400 0 mVDC ISINK≤4 mA Output Leakage Current VIN(+)= 1 VDC, VIN(−) = 0, VO = 30 VDC, (LM3302, VO = 28 VDC) 1.0 1.0 1.0 µADC Differential Input Voltage Keep all VIN’s≥0 VDC (or V−, 36 36 28 VDC if used), (Note 11) Note 4: For operating at high temperatures, the LM339/LM339A, LM2901, LM3302 must be derated based on a 125˚C maximum junction temperature and a thermal resistance of 95˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM239 and LM139 must be derated based on a 150˚C maximum junction temperature. The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small (PD≤100 mW), provided the output transistors are allowed to saturate. Note 5: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 20 mA independent of the magnitude of V+. Note 6: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than −0.3 VDC (at 25˚)C. Note 7: These specifications are limited to −55˚C≤TA≤+125˚C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications are limited to −25˚C≤TA≤+85˚C, the LM339/LM339A temperature specifications are limited to 0˚C≤TA≤+70˚C, and the LM2901, LM3302 temperature range is −40˚C≤TA≤+85˚C. Note 8: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the reference or input lines. Note 9: The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is V+ −1.5V at 25˚C, but either or both inputs can go to +30 VDC without damage (25V for LM3302), independent of the magnitude of V+. Note 10: The response time specified is a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance characteristics section. Note 11: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than −0.3 VDC (or 0.3 VDCbelow the magnitude of the negative power supply, if used) (at 25˚C). Note 12: At output switch point, VO ≅ 1.4 VDC, RS = 0Ω with V+ from 5 VDC to 30 VDC; and over the full input common-mode range (0 VDC to V+ −1.5 VDC), at 25˚C. For LM3302, V+ from 5 VDC to 28 VDC. Note 13: Refer to RETS139AX for LM139A military specifications and to RETS139X for LM139 military specifications. 5 www.national.com LM139/LM239/LM339/LM2901/LM3302 Electrical Characteristics (V+ = 5.0 VDC, (Note 7)) LM139/LM239/LM339/LM2901/LM3302 Typical Performance Characteristics Supply Current LM139/LM239/LM339, LM139A/LM239A/LM339A, LM3302 Input Current Output Saturation Voltage DS005706-34 DS005706-35 Response Time for Various Input Overdrives — Negative Transition Response Time for Various Input Overdrives — Positive Transition DS005706-37 Typical Performance Characteristics Supply Current DS005706-38 LM2901 Input Current Output Saturation Voltage DS005706-40 DS005706-39 www.national.com DS005706-36 6 DS005706-41 LM2901 (Continued) Response Time for Various Input Overdrives — Negative Transition Response Time for Various Input Overdrives-Positive Transition DS005706-42 LM139/LM239/LM339/LM2901/LM3302 Typical Performance Characteristics DS005706-43 Application Hints The differential input voltage may be larger than V+ without damaging the device. Protection should be provided to prevent the input voltages from going negative more than −0.3 VDC (at 25˚C). An input clamp diode can be used as shown in the applications section. The output of the LM139 series is the uncommitted collector of a grounded-emitter NPN output transistor. Many collectors can be tied together to provide an output OR’ing function. An output pull-up resistor can be connected to any available power supply voltage within the permitted supply voltage range and there is no restriction on this voltage due to the magnitude of the voltage which is applied to the V+ terminal of the LM139A package. The output can also be used as a simple SPST switch to ground (when a pull-up resistor is not used). The amount of current which the output device can sink is limited by the drive available (which is independent of V+) and the β of this device. When the maximum current limit is reached (approximately 16 mA), the output transistor will come out of saturation and the output voltage will rise very rapidly. The output saturation voltage is limited by the approximately 60Ω RSAT of the output transistor. The low offset voltage of the output transistor (1 mV) allows the output to clamp essentially to ground level for small load currents. The LM139 series are high gain, wide bandwidth devices which, like most comparators, can easily oscillate if the output lead is inadvertently allowed to capacitively couple to the inputs via stray capacitance. This shows up only during the output voltage transition intervals as the comparator changes states. Power supply bypassing is not required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing this input resistors to < 10 kΩ reduces the feedback signal levels and finally, adding even a small amount (1 to 10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback are not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output oscillations during the small transition intervals unless hysteresis is used. If the input signal is a pulse waveform, with relatively fast rise and fall times, hysteresis is not required. All pins of any unused comparators should be tied to the negative supply. The bias network of the LM139 series establishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 2 VDC to 30 VDC. It is usually unnecessary to use a bypass capacitor across the power supply line. Typical Applications Basic Comparator (V+ = 5.0 VDC) Driving CMOS Driving TTL DS005706-3 DS005706-5 DS005706-4 7 www.national.com LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 5.0 VDC) (Continued) AND Gate OR Gate DS005706-8 Typical Applications (V += DS005706-9 15 VDC) One-Shot Multivibrator DS005706-10 Bi-Stable Multivibrator DS005706-11 www.national.com 8 LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) One-Shot Multivibrator with Input Lock Out DS005706-12 9 www.national.com LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) ORing the Outputs Large Fan-In AND Gate DS005706-13 DS005706-15 www.national.com 10 LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) Pulse Generator DS005706-17 11 www.national.com LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) Time Delay Generator DS005706-14 Non-Inverting Comparator with Hysteresis Inverting Comparator with Hysteresis DS005706-18 DS005706-19 www.national.com 12 LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) Basic Comparator Squarewave Oscillator DS005706-21 DS005706-16 Limit Comparator Comparing Input Voltages of Opposite Polarity DS005706-20 DS005706-24 13 www.national.com LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) Crystal Controlled Oscillator Output Strobing DS005706-22 * Or open-collector logic gate without pull-up resistor DS005706-25 www.national.com 14 V+ = +30 VDC 250 mVDC≤VC≤+50 VDC 700 Hz≤fo≤100 kHz DS005706-23 (V+ = 15 VDC) (Continued) 15 LM139/LM239/LM339/LM2901/LM3302 Two-Decade High-Frequency VCO Typical Applications www.national.com LM139/LM239/LM339/LM2901/LM3302 Typical Applications (V+ = 15 VDC) (Continued) Transducer Amplifier Zero Crossing Detector (Single Power Supply) DS005706-30 DS005706-28 Split-Supply Applications (V+ = +15 VDC and V− = −15 VDC) MOS Clock Driver DS005706-31 www.national.com 16 LM139/LM239/LM339/LM2901/LM3302 Split-Supply Applications (V+ = +15 VDC and V− = −15 VDC) (Continued) Zero Crossing Detector Comparator With a Negative Reference DS005706-32 DS005706-33 Schematic Diagram DS005706-1 17 www.national.com LM139/LM239/LM339/LM2901/LM3302 Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number LM139J, LM139J/883, LM139AJ, LM139AJ/883, LM239J, LM239AJ, LM339J NS Package Number J14A S.O. Package (M) Order Number LM339AM, LM339M or LM2901M NS Package Number M14A www.national.com 18 LM139/LM239/LM339/LM2901/LM3302 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LM339N, LM339AN, LM2901N or LM3302N NS Package Number N14A Order Number LM139AW/883 or LM139W/883 NS Package Number W14B 19 www.national.com LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators Notes LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: [email protected] www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 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