LT119A/LT319A LM119/LM319 Dual Comparator U FEATURES ■ ■ ■ ■ ■ DESCRIPTIO Guaranteed Maximum 0.5mV Input Offset Voltage Input Protection Diodes Operates From Single 5V Supply 25mA Drive Capability 80ns Response Time U APPLICATIO S ■ ■ ■ ■ The LT®119A is an improved version of the LM119 dual comparator. It features lower input offset voltage and offset current, higher voltage gain, guaranteed common mode rejection and input protection diodes. The LT119A is capable of operation over a supply range from 5V to ±15V and can drive 25mA loads from each open collector output. A separate ground pin allows the LT119A to isolate system grounds. Linear Technology Corporation’s advanced processing, design techniques and reliability make the LT119A/LT319A an ideal choice over previous devices in most comparator applications. Window Detectors High Speed One Shot Relay/Lamp Drivers Voltage Controlled Oscillators , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO Response Time for Various Input Overdrives Window Detector* 6 5V 3 10 + 500Ω 1 1/2 LT319A VIN 4 – TTL OUTPUT 2 5 OUTPUT VOLTAGE (V) VUT 2mV 4 3 5mV 20mV 2 8 + 6 1/2 LT319A VLT 9 – 7 5 INPUT VOLTAGE (mV) 1 VOUT = 5V FOR VLT ≤ VIN ≤ VUT VOUT = 0V FOR VIN ≤ VLT OR VIN ≤ VUT VS = ±15V RL = 500Ω V + + = 5V TA = 25°C 0 100 50 0 0 LT119/319 TA1 50 100 150 200 250 300 350 TIME (ns) LT119/319 TA2 *ALLOWED WINDOW FOR SINGLE 5V SUPPLY IS 1.2V TO 3.8V 119a319afb 1 LT119A/LT319A LM119/LM319 W W W AXI U U ABSOLUTE RATI GS (Note 1) Supply Voltage ........................................................ 36V Output to Negative Supply Voltage .......................... 36V Ground to Negative Supply Voltage ......................... 25V Ground to Positive Supply Voltage .......................... 18V Differential Input Voltage (Note 6) ........................... ±5V Differential Input Current (Note 6) ........................± 5mA Input Voltage (Note 2) Output Short-Circuit Duration ................................... 10s Operating Temperature Range LT119A, LM119 OBSOLETE ........ – 55°C to 125°C LT319A, LM319...................................... 0°C to 70°C Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C U U W PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW V+ OUTPUT 1 1 9 8 +INPUT 2 GND 2 7 GND 2 +INPUT 1 3 –INPUT 1 LT119AH LM119H LT319AH LM319H –INPUT 2 10 4 NC 1 14 NC NC 2 13 NC GND 3 12 OUTPUT 1 +INPUT 4 11 V + –INPUT 5 10 – INPUT 2 V– 6 9 +INPUT 2 OUTPUT 2 7 8 GND 2 6 5 V– OUTPUT 2 ORDER PART NUMBER TOP VIEW H PACKAGE 10-LEAD TO-5 METAL CAN LT319AN LM319N LT119AJ LM119J LT319AJ LM319J N PACKAGE 14-LEAD PLASTIC DIP TJMAX = 150°C, θJA = 100°C/ W TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W J PACKAGE 14-LEAD CERAMIC DIP TJMAX = 150°C, θJA = 100°C/ W OBSOLETE PACKAGE OBSOLETE PACKAGE Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS VOS VS = ±15V, VCM = 0 Input Offset Voltage MIN (Note 4) ● CMRR Common Mode Rejection Ratio IOS Input Offset Current 90 (Note 4) LT119A TYP MAX 0.3 0.5 0.5 1.2 1.0 2.0 Input Bias Current (Note 4) Voltage Gain Response Time 20 (Note 5) 0.7 MAX UNITS 4 mV 4 7 mV mV dB 20 40 75 30 75 100 nA nA 150 500 1000 150 500 1000 nA nA ● AV LM119 TYP 106 ● IB MIN 40 80 10 40 V/mV 80 ns 119a319afb 2 LT119A/LT319A LM119/LM319 ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS VSAT VIN ≤ –5mV, IO = 25mA, V+ ≥ 4.5V, V– = 0V Saturation Voltage MIN VIN ≤ –6mA, ISINK ≤ 3.2mA TA ≥ 0°C TA ≤ 0°C Output Leakage Current VIN ≥ 5mV, VOUT to V– = 35V ● Input Voltage Range VS = ±15V V + = 5V, V – = 0V Differential Input Voltage IS ● ● –12 1 LT119A TYP MAX MIN LM119 TYP MAX UNITS 0.75 1.5 0.75 1.5 V 0.23 0.4 0.6 0.23 0.4 0.6 V V 0.2 1 2 10 0.2 1 2 10 µA µA ±13 12 3 ±13 12 3 V V –12 1 ±5 ● ±5 V Supply Current V + = 5V, V – = 0V Positive Supply Current VS = ±15V 8 11.5 8 11.5 mA Negative Supply Current VS = ±15V 3 4.5 3 4.5 mA 4.3 4.3 mA The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS VOS VS = ±15V, VCM = 0V Input Offset Voltage RS ≤ 5k (Note 4) CMRR Common Mode Rejection Ratio IOS Input Offset Current (Note 4) IB Input Bias Current (Note 4) MIN LT319A TYP MAX 0.3 0.5 0.5 1 2 30 150 ● 90 ● Voltage Gain Response Time VSAT Saturation Voltage 20 (Note 5) Output Leakage Current VIN ≥ 10mV, VOUT to V– = 35V Input Voltage Range VS = ±15V V+ = 5V, V – = 0V Differential Input Voltage IS ● ● ● MAX UNITS 8 mV 2 8 10 mV mV 40 60 80 200 300 nA nA 500 1000 250 1000 1200 nA nA dB 40 8 80 VIN ≤ –10mV, ISINK = 25mA V + ≥ 4.5V, V– = 0V, VIN ≤ –10mV, ISINK ≤ 3.2mA LM319 TYP 106 ● AV MIN 40 V/mV 80 ns 0.75 1.5 0.75 1.5 V 0.3 0.4 0.3 0.4 V 0.2 10 0.2 10 µA 3 V V ±13 1 ±13 3 1 ±5 ● ±5 V Supply Current V + = 5V, V – = 0V Positive Supply Current VS = ±15V 8 12.5 8 12.5 mA Negative Supply Current VS = ±15V 3 5 3 5 mA Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: For supply voltages less than ±15V, the maximum input voltage is equal to the supply voltage. Note 3: Unless otherwise noted, supply voltage equals ±15V and VCM = 0V, TA = 25°C. The ground pin is grounded. Note that the maximum voltage allowed between the ground pin and V + is 18V. Do not tie the ground pin to V– when the power supply voltage exceeds ±9V. The offset voltage, offset current and bias current specifications apply for all supply voltages between ±15V and 5V unless otherwise specified. 4.3 4.3 mA Note 4: The offset voltages and currents given are the maximum values required to drive the output within 1V of either supply with a 1mA load, thus these parameters define an error band and take into account the worst case effects of voltage gain and input impedance. Note 5: Response time specified is for a 100mV input step with 5mV overdrive. Note 6: Inputs are protected with back-to-back 5.6V zener diodes. This limits maximum differential input voltage to ±5V if current is unlimited. Larger differential input drive is allowed if input current is limited to ±5mA with external resistance. 119a319afb 3 LT119A/LT319A LM119/LM319 U W TYPICAL PERFOR A CE CHARACTERISTICS Transfer Function Input Characteristics 40 V + + = 5V 25 5 20 4 15 3 10 2 5.0 1 –0.6 0.2 0.6 –0.2 DIFFERENTIAL INPUT VOLTAGE (mV) 300 200 200 100 0 –100 –10 0 1.0 –6 2 6 –2 DIFFERENTIAL INPUT VOLTAGE (V) 5mV 2 VS = ±15V RL = 500Ω V ++ = 5V TA = 25°C 20mV 6 5 5 2mV 4 2 5mV 20mV 0 0 –50 –100 0 50 VS = 5V RL = 500Ω V + + = 5V TA = 25°C 0 50 0 0 50 Output Saturation Voltage 0 0 –50 –100 0 Supply Current 50 100 150 200 250 300 350 TIME (ns) Output Limiting Characteristics 120 1.2 TJ = 25°C TJ = 25°C SUPPLY CURRENT (mA) 5 8 POSITIVE SUPPLY 6 4 NEGATIVE SUPPLY 2 VS = ±15V INPUT OVERDRIVE = 5mV 0 0.6 0.8 0.4 OUTPUT VOLTAGE (V) 1.0 LT119/319 G7 0 15 5 10 SUPPLY VOLTAGE (V) LT119/319 G8 SHORT-CIRCUIT CURRENT AFTER 3 MINUTES 80 0.8 60 0.6 40 0.4 POWER DISSIPATION 20 0 20 1.0 100 POWER DISSIPATION (W) 10 SHORT-CIRCUIT CURRENT (mA) 10 20 15 2mV LT119/319 G6 12 TJ = 25°C OUTPUT CURRENT (mA) 5mV LT119/319 G5 25 0.2 20mV 2 100 150 200 250 300 350 TIME (ns) LT119/319 G4 0 4 1 100 100 150 200 250 300 350 TIME (ns) VS = 5V RL = 500Ω V + + = 5V TA = 25°C 3 1 INPUT VOLTAGE (mV) INPUT VOLTAGE (mV) 6 3 1 0 Response Time for Various Input Overdrives OUTPUT VOLTAGE (V) 4 3 5 25 45 65 85 105 125 TEMPERATURE (°C) LT119/319 G3 Response Time for Various Input Overdrives OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2mV 0 – 55 –35 –15 10 LT119/319 G2 Response Time for Various Input Overdrives 5 100 OFFSET LT119/319 G1 6 BIAS 150 50 MAXIMUM DIFFERENTIAL INPUT VOLTAGE INPUT VOLTAGE (mV) 0 –1.0 VS = ±15V INPUT CURRENT (nA) 6 250 VS = ±15V TA = 25°C 7 INPUT BIAS CURRENT (nA) 30 Input Currents 400 OUTPUT VOLTAGE LOW (V) OUTPUT VOLTAGE HIGH (V) V + + = 36V VS = ±15V RL = 1.4k TA = 25°C 35 8 0.2 0 5 10 OUTPUT VOLTAGE (V) 0 15 LT119/319 G9 119a319afb 4 LT119A/LT319A LM119/LM319 U W TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Limits Supply Current V+ 12 V + = 5V, V – = 0V –0.8 10 VS = ±15V SUPPLY CURRENT (mA) COMMON-MODE LIMITS (V) –0.4 –1.2 –1.6 REFERRED TO SUPPLY VOLTAGES –2.0 1.2 0.8 VS = ±15V, V + = 5V, V – = 0V POSITIVE SUPPLY = 15V 8 6 POSITIVE SUPPLY = 5V, V – = 0V 4 2 NEGATIVE SUPPLY = –15V 0.4 V– – 55 – 35 –15 0 – 55 – 35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) 5 25 45 65 85 105 125 TEMPERATURE (°C) LT119/319 G11 LT119/319 G10 U TYPICAL APPLICATIO S Relay Driver 28V 5V 10 INPUTS 11 – 7 1/2 LT319A 9 8 + 35V 6 LT119/319 TA3 High Noise Immunity 60Hz Sync Circuit 5V 68k 60Hz INPUT 10VP-P (TYP) 1N4148 3.3k 20k 10 0.15µF – 11 1/2 LT319A 9 + 7 OUTPUT 8 6 10k 10k LT119/319 TA4 119a319afb 5 LT119A/LT319A LM119/LM319 U TYPICAL APPLICATIO S Voltage Controlled Crystal Oscillator With 100ppm Trim Range INPUT 0V TO 5V 100k AT CUT 18pF, 100kHz 10k 5V MV1405* 5 1000pF 5V 11 1k – 12 1/2 LT319A 4 9 + 1k + 7 1/2 LT319A 1/2 10 3 39k 20k OUTPUT 8 – 6 3k 20k 5V 2k LT119/319 TA5 Voltage Controlled High Speed One Shot 5V 100pF 10 2k 5V INPUT PULSE 11 – 680Ω 7 1/2 LT319A 9 + 7408 8 5V OUTPUT 0µs TO 1µs (20ns MINIMUM) 10k 100pF 1k 2k 4 120pF 0V TO 1V INPUT 680Ω + 1/2 LT319A 5 3 – 6 LM385-1.2 12 300pF LT119/319 TA6 5V 119a319afb 6 LT119A/LT319A LM119/LM319 U TYPICAL APPLICATIO S 10-Bit Serial Output A/D Converter 5V INPUT 0V TO 3.5V 10k* 5V 20k* LT1004-1.2 4.7k 10k PN4250 5 PN4250 5V 11 – 12 1/2 LT119A 4 1N4148 9 3 + 74C04 1000µF † 1/2 LT119A 10 6 1k + – –5V 7 DATA OUT 8 1N4148 39k 82k 0.1µF † 2N3904 1N4148 1k 3.9k 15k 1k CONVERT COMMAND INPUT (TTL) *1% FILM –5V † POLYSTYRENE, MOUNT CAPACITORS CLOSE TOGETHER CONVERSION TIME = 10ms * = 1% CAPACITORS ARE POLYSTYRENE MOUNT IN CLOSE PROXIMITY 5V LT119/319 TA7 5 Microsecond Sample-and-Hold with Zero Hold Step 15V + 10µF 1N4148 4.7k 100Ω 240Ω 3k 2N2907 15V 2N2907 2N4931 15V 11 12k 0.003µF † – 10k 12 2N2907 3k 2N2222 VOUT 20k 5 3.3k 9k 10pF 1/2 LT119A 3 + – –15V 4 1k 7 1/2 LT119A 1k 9 6 8 + 9k INPUT 15V 3k 1N4148 –15V *TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN † POLYSTYRENE CAPACITOR 2pF TO 8pF* 10 Q VS CLK D 74C74 CLR PRESET 5V 0V SAMPLE HOLD LT119/319 TA8 119a319afb 7 LT119A/LT319A LM119/LM319 W W SCHEMATIC DIAGRAM R1 3.5k R2 4k V+ R3 4k R6 3k R7 3k Q9 Q4 Q8 Q3 – + C1 18pF Q6 Q2 R4 3k 5.6V INPUTS Q7 R11 13k R5 3k R12 13k R10 170Ω 5.6V Q15 R8 2k Q1 Q5 Q13 R9 18k Q22 R23 4k R22 60Ω R20 3.6k R18 1.9k Q11 R25 600Ω R24 250Ω R19 250Ω Q20 OUTPUT Q14 R13 600Ω Q16 Q12 Q21 TO OTHER SIDE LT119A R15 300 Q10 R16 600Ω R14 2k Q19 Q17 R21 Q18 900Ω R17 3Ω V– GND 119a319afb 8 LT119A/LT319A LM119/LM319 U PACKAGE DESCRIPTIO H Package 10-Lead TO-5 Metal Can (Reference LTC DWG # 05-08-1322) .335 – .370 (8.509 – 9.398) DIA .305 – .335 (7.747 – 8.509) .040 (1.016) MAX .050 (1.270) MAX SEATING PLANE .165 – .185 (4.191 – 4.699) GAUGE PLANE .010 – .045* (0.254 – 1.143) REFERENCE PLANE .500 – .750 (12.700 – 19.050) .016 – .021** (0.406 – 0.533) .027 – .045 (0.686 – 1.143) 36°BSC PIN 1 .028 – .034 (0.711 – 0.864) .230 ( 5.842) TYP .110 – .160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H10(TO-5) 0801 OBSOLETE PACKAGE 119a319afb 9 LT119A/LT319A LM119/LM319 U PACKAGE DESCRIPTIO J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .005 (0.127) MIN .785 (19.939) MAX 14 13 12 11 10 9 8 .220 – .310 (5.588 – 7.874) .025 (0.635) RAD TYP 1 2 3 4 5 6 7 .300 BSC (7.62 BSC) .200 (5.080) MAX .015 – .060 (0.381 – 1.524) .008 – .018 (0.203 – 0.457) 0° – 15° .045 – .065 (1.143 – 1.651) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .014 – .026 (0.360 – 0.660) .100 (2.54) BSC .125 (3.175) MIN J14 0801 OBSOLETE PACKAGE 119a319afb 10 LT119A/LT319A LM119/LM319 U PACKAGE DESCRIPTIO N Package 14-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .770* (19.558) MAX 14 13 12 11 10 9 8 1 2 3 4 5 6 7 .255 ± .015* (6.477 ± 0.381) .130 ± .005 (3.302 ± 0.127) .300 – .325 (7.620 – 8.255) .045 – .065 (1.143 – 1.651) .020 (0.508) MIN .065 (1.651) TYP .008 – .015 (0.203 – 0.381) ( +.035 .325 –.015 +0.889 8.255 –0.381 NOTE: 1. DIMENSIONS ARE ) .120 (3.048) MIN .005 (0.125) .100 MIN (2.54) BSC INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) .018 ± .003 (0.457 ± 0.076) N14 1002 119a319afb Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 11 LT119A/LT319A LM119/LM319 U TYPICAL APPLICATIO 5kHz to 2MHz V→F Converter 5V 50pF POLYSTYRENE 3.3k 5V 5V 330Ω TTL OUT 5kHz TO 2MHz 470Ω 10k 2k † 20k 5 0V TO 10V 2N2369 – 0.01µF 1/2 LT119A 4 + 3 220Ω 12 470Ω 22pF 10k 1M 2k 11 LT1004-1.2 – –5V 7 ALL DIODES 1N4148 † SET SCALE FACTOR 5V 10k 10 1/2 LT119A 8 + 0.1µF 9 6 3k LT119/319 TA9 –5V 119a319afb 12 Linear Technology Corporation LT/TP 1102 1K REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 1994