LM193 293 393 2903

LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators August 2002 LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators General Description The LM193 series consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which 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 LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators. The LM393 and LM2903 parts are available in National���s innovative thin micro SMD package with 8 (12 mil) large bumps. Advantages n n n n n n High precision comparators Reduced VOS drift over temperature Eliminates need for dual supplies Allows sensing near ground Compatible with all forms of logic Power drain suitable for battery operation Features n Wide supply ��� Voltage range: 2.0V to 36V �� 1.0V to �� 18V ��� Single or dual supplies: n Very low supply current drain (0.4 mA) ��� independent of supply voltage n Low input biasing current: 25 nA �� 5 nA n Low input offset current: �� 3 mV n Maximum offset voltage: n Input common-mode voltage range includes ground 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 Available in the 8-Bump (12 mil) micro SMD package n See AN-1112 for micro SMD considerations Squarewave Oscillator Non-Inverting Comparator with Hysteresis 00570909 00570938 �� 2002 National Semiconductor Corporation DS005709 www.national.com LM193/LM293/LM393/LM2903 Schematic and Connection Diagrams 00570902 Metal Can Package Dual-In-Line/SOIC Package 00570901 00570903 micro SMD micro SMD Marking 00570945 Top View Top View 00570946 www.national.com 2 LM193/LM293/LM393/LM2903 Absolute Maximum Ratings (Note 10) LM193/LM193A LM2903 Storage Temperature Range Lead Temperature (Soldering, 10 seconds) Soldering Information Dual-In-Line Package Soldering (10 seconds) Small Outline Package Vapor Phase (60 seconds) Infrared (15 seconds) ���55��C to +125��C ���40��C to +85��C ���65��C to +150��C +260��C If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage, V+ Differential Input Voltage (Note 8) Input Voltage Input Current (VIN < ���0.3V) (Note 3) Power Dissipation (Note 1) Molded DIP Metal Can Small Outline Package micro SMD Pacakge Output Short-Circuit to Ground (Note 2) Operating Temperature Range LM393 LM293 0��C to +70��C ���25��C to +85��C Continuous 780 mW 660 mW 510 mW 568mW 36V 36V ���0.3V to +36V 50 mA 260��C 215��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 k��� in series with 100 pF) 1300V Electrical Characteristics (V+ =5V, TA = 25��C, unless otherwise stated) Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Common Mode Voltage Range Supply Current Voltage Gain Large Signal Response Time Response Time Output Sink Current Saturation Voltage Output Leakage Current RL = ��� V+ =5V V+ =36V RL���15 k���, V+ =15V VO = 1V to 11V VIN =TTL Logic Swing, VREF =1.4V VRL =5V, RL =5.1 k��� VRL =5V, RL =5.1 k��� (Note 7) VIN(���)=1V, VIN(+)=0, VO���1.5V VIN(���)=1V, VIN(+)=0, ISINK���4 mA VIN(���)=0, VIN(+)=1V, VO =5V 6.0 1.3 16 250 0.1 400 ��s mA mV nA 300 ns 50 0.4 1 200 1 2.5 mA mA V/mV (Note 9) IIN(+) or IIN(���) with Output In Linear Range, VCM = 0V (Note 5) IIN(+)���IIN(���) VCM = 0V V+ = 30V (Note 6) 0 3.0 25 V ���1.5 + Conditions Min LM193A Typ 1.0 25 Max 2.0 100 Units mV nA nA V Electrical Characteristics (V+ =5V, TA = 25��C, unless otherwise stated) Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Common Mode Voltage Range (Note 9) IIN(+) or IIN(���) with Output In Linear Range, VCM = 0V (Note 5) IIN(+)���IIN(���) VCM = 0V V+ = 30V (Note 6) 0 3.0 25 V+���1.5 0 5.0 50 V+���1.5 0 5.0 50 V+���1.5 nA V Conditions LM193 Min Typ 1.0 25 Max 5.0 100 LM293, LM393 Min Typ 1.0 25 Max 5.0 250 LM2903 Min Typ 2.0 25 Max 7.0 250 mV nA Units 3 www.national.com LM193/LM293/LM393/LM2903 Electrical Characteristics Parameter Supply Current Voltage Gain Large Signal Response Time Response Time Output Sink Current Saturation Voltage Output Leakage Current RL = ��� (Continued) (V+ =5V, TA = 25��C, unless otherwise stated) Conditions V+ =5V V+ =36V RL���15 k���, V+ =15V VO = 1V to 11V VIN =TTL Logic Swing, VREF =1.4V VRL =5V, RL =5.1 k��� VRL =5V, RL =5.1 k��� (Note 7) VIN(���)=1V, VIN(+)=0, VO���1.5V VIN(���)=1V, VIN(+)=0, ISINK���4 mA VIN(���)=0, VIN(+)=1V, VO =5V 6.0 1.3 16 250 0.1 400 6.0 1.3 16 250 0.1 400 6.0 1.5 16 250 0.1 400 ��s mA mV nA 300 300 300 ns 50 LM193 Min Typ 0.4 1 200 Max 1 2.5 50 LM293, LM393 Min Typ 0.4 1 200 Max 1 2.5 25 LM2903 Min Typ 0.4 1 100 Max 1.0 2.5 mA mA V/mV Units Electrical Characteristics (V+ = 5V) (Note 4) Parameter Input Offset Voltage Input Offset Current Input Bias Current Input Common Mode Voltage Range Saturation Voltage Output Leakage Current Differential Input Voltage (Note 9) IIN(+)���IIN(���), VCM =0V IIN(+) or IIN(���) with Output in Linear Range, VCM =0V (Note 5) V+ =30V (Note 6) VIN(���)=1V, VIN(+)=0, ISINK���4 mA VIN(���)=0, VIN(+) =1V, VO =30V Keep All VIN���s���0V (or V���, if Used), (Note 8) 0 V+���2.0 700 1.0 36 V mV ��A V Conditions Min LM193A Typ Max 4.0 100 300 mV nA nA Units Electrical Characteristics (V+ = 5V) (Note 4) Parameter Input Offset Voltage Input Offset Current Input Bias Current (Note 9) IIN(+)���IIN(���), VCM =0V IIN(+) or IIN(���) with Output in Linear Range, VCM =0V (Note 5) V+ =30V (Note 6) VIN(���)=1V, VIN(+)=0, ISINK���4 mA VIN(���)=0, VIN(+) =1V, VO =30V Keep All VIN���s���0V (or V���, if Used), (Note 8) 0 Conditions LM193 Min Typ Max 9 100 300 LM293, LM393 Min Typ Max 9 150 400 LM2903 Min Typ 9 50 200 Max 15 200 500 mV nA nA Units Input Common Mode Voltage Range Saturation Voltage Output Leakage Current Differential Input Voltage V+���2.0 700 1.0 36 0 V+���2.0 700 1.0 36 0 400 V+���2.0 700 1.0 36 V mV ��A V Note 1: For operating at high temperatures, the LM393 and LM2903 must be derated based on a 125��C maximum junction temperature and a thermal resistance of 170��C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM193/LM193A/LM293 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 2: 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 3: 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 www.national.com 4 LM193/LM293/LM393/LM2903 Electrical Characteristics (Continued) 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 ���0.3V. Note 4: These specifications are limited to ���55��C���TA���+125��C, for the LM193/LM193A. With the LM293 all temperature specifications are limited to ���25��C���TA���+85��C and the LM393 temperature specifications are limited to 0��C���TA���+70��C. The LM2903 is limited to ���40��C���TA���+85��C. Note 5: 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 6: 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 36V without damage, independent of the magnitude of V+. Note 7: The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance characteristics section. Note 8: 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 ���0.3V (or 0.3V below the magnitude of the negative power supply, if used). Note 9: At output switch point, VO.1.4V, RS =0��� with V+ from 5V to 30V; and over the full input common-mode range (0V to V+���1.5V), at 25��C. Note 10: Refer to RETS193AX for LM193AH military specifications and to RETS193X for LM193H military specifications. Ordering Information Package Temperature Range Part Number LM193H* LM193H/883 LM193H-MLS ���55��C to 125��C 8-Pin Metal Can LM193AH-MLS LM193AH-QMLV** LM193AH LM193AH/883 ���25��C to 85��C 0��C to 70��C LM293H LM393H LM193J/883* 8-Pin Ceramic DIP ���55��C to 125��C LM193AJ/883 LM193AJ-QMLV** LM193AJ-MLS 8-Pin Molded DIP 0��C to 70��C ���40��C to 85��C 0��C to 70��C 8-Pin SOIC ���40��C to 85��C 0��C to 70��C ���40��C to 85��C LM393N LM2903N LM393M LM393MX LM2903M LM2903MX LM393TL LM393TLX LM2903ITL LM2903ITLX TLA08AAA M08A N08E J08A H08C NSC Drawing 8-Bump (12 mils) micro SMD Note: * Also available per LM38510/11202 Note: ** See STD Mil DWG 5962-94526 5 www.national.com LM193/LM293/LM393/LM2903 Typical Performance Characteristics Supply Current LM193/LM293/LM393, LM193A Input Current 00570925 00570926 Output Saturation Voltage Response Time for Various Input Overdrives ��� Negative Transition 00570927 00570928 Response Time for Various Input Overdrives ��� Positive Transition 00570929 www.national.com 6 LM193/LM293/LM393/LM2903 Typical Performance Characteristics Supply Current LM2903 Input Current 00570930 00570931 Output Saturation Voltage Response Time for Various Input Overdrives ��� Negative Transition 00570933 00570932 Response Time for Various Input Overdrives ��� Positive Transition 00570934 7 www.national.com LM193/LM293/LM393/LM2903 Application Hints The LM193 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 change 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 the input resistors to < 10 k��� reduces the feedback signal levels and finally, adding even a small amount (1.0 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 input pins of any unused comparators should be tied to the negative supply. The bias network of the LM193 series establishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 2.0 VDC to 30 VDC. It is usually unnecessary to use a bypass capacitor across the power supply line. The differential input voltage may be larger than V+ without damaging the device (Note 8). 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 LM193 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 LM193 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 �� of this device. When the maximum current limit is reached (approximately 16mA), 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 60��� rSAT of the output transistor. The low offset voltage of the output transistor (1.0mV) allows the output to clamp essentially to ground level for small load currents. Typical Applications Basic Comparator (V+ =5.0 VDC) Driving CMOS Driving TTL 00570935 00570937 00570936 Squarewave Oscillator Pulse Generator Crystal Controlled Oscillator 00570938 00570940 00570939 * For large ratios of R1/R2, D1 can be omitted. www.national.com 8 LM193/LM293/LM393/LM2903 Typical Applications (V+ =5.0 VDC) (Continued) Two-Decade High Frequency VCO 00570941 V* = +30 VDC +250 mVDC ��� VC ��� +50 VDC 700Hz ��� fo ��� 100kHz Basic Comparator Non-Inverting Comparator with Hysteresis 00570906 00570909 Inverting Comparator with Hysteresis Output Strobing 00570910 00570911 9 www.national.com LM193/LM293/LM393/LM2903 Typical Applications (V+ =5.0 VDC) AND Gate (Continued) OR Gate 00570913 00570912 Large Fan-in AND Gate Limit Comparator 00570915 00570914 Comparing Input Voltages of Opposite Polarity ORing the Outputs 00570916 00570917 www.national.com 10 LM193/LM293/LM393/LM2903 Typical Applications (V+ =5.0 VDC) (Continued) One-Shot Multivibrator Zero Crossing Detector (Single Power Supply) 00570921 00570922 Bi-Stable Multivibrator One-Shot Multivibrator with Input Lock Out 00570924 00570923 Zero Crossing Detector Comparator With a Negative Reference 00570943 00570944 11 www.national.com LM193/LM293/LM393/LM2903 Typical Applications (V+ =5.0 VDC) (Continued) Time Delay Generator 00570907 Split-Supply Applications (V+ =+15 VDC and V��� =���15 VDC) MOS Clock Driver 00570942 www.national.com 12 LM193/LM293/LM393/LM2903 Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package Number H08C Ceramic Dual-In-Line Package NS Package Number J08A 13 www.national.com LM193/LM293/LM393/LM2903 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) SOIC Package NS Package Number M08A Molded Dual-In-Line Package (N) NS Package N08E www.national.com 14 LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NOTE: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION REMAINING PINS ARE NUMBERED COUNTERCLOCKWISE. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC. 8-Bump (12 mil) micro SMD Package NS Package TLA08AAA X1 = 1.514mm X2 = 1.514mm X3 = 0.600mm 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 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Fran��ais Tel: +33 (0) 1 41 91 8790 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. National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.