LT319A

LT119A/LT319A LM119/LM319 Dual Comparator FEATURES s s s s s DESCRIPTIO Guaranteed Maximum 0.5mV Input Offset Voltage Input Protection Diodes Operates From Single 5V Supply 25mA Drive Capability 80ns Response Time 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. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIO S s s s s Window Detectors High Speed One Shot Relay/Lamp Drivers Voltage Controlled Oscillators TYPICAL APPLICATIO Window Detector* 5V Response Time for Various Input Overdrives 6 5 OUTPUT VOLTAGE (V) VUT 3 + – 10 1 500Ω TTL OUTPUT 4 3 2 1 20mV 1/2 LT319A VIN 4 2 8 INPUT VOLTAGE (mV) + 1/2 LT319A 6 7 5 VOUT = 5V FOR VLT ≤ VIN ≤ VUT VOUT = 0V FOR VIN ≤ VLT OR VIN ≤ VUT 0 100 50 0 0 50 VLT 9 – LT119/319 TA1 *ALLOWED WINDOW FOR SINGLE 5V SUPPLY IS 1.2V TO 3.8V U 2mV 5mV VS = ±15V RL = 500Ω V + + = 5V TA = 25°C 100 150 200 250 300 350 TIME (ns) LT119/319 TA2 U U 119a319afb 1 LT119A/LT319A LM119/LM319 ABSOLUTE AXI U RATI GS 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) PACKAGE/ORDER I FOR ATIO TOP VIEW V+ OUTPUT 1 1 GND 2 +INPUT 1 3 –INPUT 1 4 5 V– 6 OUTPUT 2 10 –INPUT 2 9 8 +INPUT 2 7 GND 2 ORDER PART NUMBER LT119AH LM119H LT319AH LM319H H PACKAGE 10-LEAD TO-5 METAL CAN TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W OBSOLETE PACKAGE Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) MIN LT119A TYP MAX 0.3 q VS = ±15V, VCM = 0 (Note 4) CMRR IOS IB AV Common Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time (Note 5) (Note 4) q (Note 4) q 2 U U W WW U W (Note 1) 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 TOP VIEW NC NC GND +INPUT –INPUT V– OUTPUT 2 1 2 3 4 5 6 7 14 NC 13 NC 12 OUTPUT 1 11 V + 10 – INPUT 2 9 8 +INPUT 2 GND 2 ORDER PART NUMBER LT319AN LM319N N PACKAGE 14-LEAD PLASTIC DIP TJMAX = 150°C, θJA = 100°C/ W J PACKAGE 14-LEAD CERAMIC DIP TJMAX = 150°C, θJA = 100°C/ W LT119AJ LM119J LT319AJ LM319J OBSOLETE PACKAGE MIN LM119 TYP 0.7 MAX 4 4 7 75 100 500 1000 UNITS mV mV mV dB nA nA nA nA V/mV ns 0.5 1.0 2.0 40 75 500 1000 10 0.5 1.2 90 106 20 150 20 40 80 30 150 40 80 119a319afb LT119A/LT319A LM119/LM319 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VSAT Saturation Voltage CONDITIONS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) MIN LT119A TYP MAX 0.75 1.5 MIN LM119 TYP 0.75 MAX 1.5 UNITS V VIN ≤ – 5mV, IO = 25mA, V+ ≥ 4.5V, V– = 0V VIN ≤ – 6mA, ISINK ≤ 3.2mA TA ≥ 0°C TA ≤ 0°C 0.23 0.2 1 –12 1 ±13 0.4 0.6 2 10 12 3 ±5 –12 1 0.23 0.2 1 ±13 0.4 0.6 2 10 12 3 ±5 V V µA µA V V V mA mA mA Output Leakage Current Input Voltage Range Differential Input Voltage IS Supply Current Positive Supply Current Negative Supply Current VIN ≥ 5mV, VOUT to V– = 35V q VS = ±15V V + = 5V, V – = 0V V + = 5V, V – = 0V VS = ±15V VS = ±15V q q q 4.3 8 3 11.5 4.5 4.3 8 3 11.5 4.5 The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS VS = ±15V, VCM = 0V RS ≤ 5k (Note 4) CMRR IOS IB AV VSAT Common Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage (Note 5) VIN ≤ –10mV, ISINK = 25mA V + ≥ 4.5V, V– = 0V, VIN ≤ – 10mV, ISINK ≤ 3.2mA Output Leakage Current Input Voltage Range Differential Input Voltage IS Supply Current Positive Supply Current Negative Supply Current V + = 5V, V – = 0V VS = ±15V VS = ±15V VIN ≥ 10mV, VOUT to V– = 35V VS = ±15V V+ = 5V, V – = 0V q q q q q MIN LT319A TYP MAX 0.3 0.5 0.5 1 2 40 60 500 1000 MIN LM319 TYP 2 MAX 8 8 10 200 300 1000 1200 UNITS mV mV mV dB nA nA nA nA V/mV ns 90 (Note 4) q 106 30 150 80 250 8 1.5 0.4 10 3 ±5 4.3 8 3 12.5 5 4.3 8 3 12.5 5 1 40 80 0.75 0.3 0.2 ±13 3 ±5 1.5 0.4 10 (Note 4) q 20 40 80 0.75 0.3 0.2 ±13 V V µA V V V mA mA mA 1 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. 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 TYPICAL PERFOR A CE CHARACTERISTICS Transfer Function 40 35 VS = ±15V RL = 1.4k TA = 25°C V + + = 36V 8 7 6 V + + = 5V 5 4 3 2 1 –0.6 0.2 0.6 –0.2 DIFFERENTIAL INPUT VOLTAGE (mV) 0 1.0 –100 –10 400 VS = ±15V TA = 25°C OUTPUT VOLTAGE HIGH (V) INPUT CURRENT (nA) 30 25 20 15 10 5.0 INPUT BIAS CURRENT (nA) 0 –1.0 Response Time for Various Input Overdrives 6 5 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 4 3 2 1 20mV 5mV 4 3 2 1 2mV 5mV 20mV VS = 5V RL = 500Ω V + + = 5V TA = 25°C OUTPUT VOLTAGE (V) 2mV INPUT VOLTAGE (mV) INPUT VOLTAGE (mV) 0 0 –50 –100 0 50 100 150 200 250 300 350 TIME (ns) LT119/319 G4 100 50 0 0 50 INPUT VOLTAGE (mV) Output Saturation Voltage 25 TJ = 25°C 20 OUTPUT CURRENT (mA) SUPPLY CURRENT (mA) SHORT-CIRCUIT CURRENT (mA) 15 10 5 VS = ±15V INPUT OVERDRIVE = 5mV 0 0 0.2 0.6 0.8 0.4 OUTPUT VOLTAGE (V) 1.0 4 UW LT119/319 G1 Input Characteristics 250 Input Currents VS = ±15V 200 BIAS 150 300 OUTPUT VOLTAGE LOW (V) 12 10 8 6 4 2 0 200 100 100 0 MAXIMUM DIFFERENTIAL INPUT VOLTAGE –6 2 6 –2 DIFFERENTIAL INPUT VOLTAGE (V) 10 50 OFFSET 0 – 55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) LT119/319 G3 LT119/319 G2 Response Time for Various Input Overdrives 6 5 6 5 4 3 2 1 0 0 –50 –100 Response Time for Various Input Overdrives VS = 5V RL = 500Ω V + + = 5V TA = 25°C 20mV 5mV 2mV VS = ±15V RL = 500Ω V ++ = 5V TA = 25°C 0 100 150 200 250 300 350 TIME (ns) LT119/319 G5 0 50 100 150 200 250 300 350 TIME (ns) LT119/319 G6 Supply Current 120 Output Limiting Characteristics 1.2 TJ = 25°C 100 80 60 40 POWER DISSIPATION 20 0 0.2 0 15 LT119/319 G9 TJ = 25°C 1.0 SHORT-CIRCUIT CURRENT AFTER 3 MINUTES POWER DISSIPATION (W) 0.8 0.6 0.4 POSITIVE SUPPLY NEGATIVE SUPPLY 0 15 5 10 SUPPLY VOLTAGE (V) 20 LT119/319 G8 0 5 10 OUTPUT VOLTAGE (V) LT119/319 G7 119a319afb LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Limits V+ –0.4 V + = 5V, V – = 0V SUPPLY CURRENT (mA) COMMON-MODE LIMITS (V) –0.8 –1.2 –1.6 VS = ±15V REFERRED TO SUPPLY VOLTAGES –2.0 1.2 0.8 0.4 V– – 55 – 35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) LT119/319 G10 VS = ±15V, V + = 5V, V – = 0V TYPICAL APPLICATIO S Relay Driver 5V 10 11 7 8 6 28V 60Hz INPUT 10VP-P (TYP) U UW Supply Current 12 10 POSITIVE SUPPLY = 15V 8 6 4 2 NEGATIVE SUPPLY = –15V POSITIVE SUPPLY = 5V, V – = 0V 0 – 55 – 35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) LT119/319 G11 – + INPUTS 9 1/2 LT319A 35V LT119/319 TA3 High Noise Immunity 60Hz Sync Circuit 5V 68k 1N4148 3.3k 10 0.15µF 20k – + 6 11 7 OUTPUT 1/2 LT319A 9 8 10k 10k LT119/319 TA4 119a319afb 5 LT119A/LT319A LM119/LM319 TYPICAL APPLICATIO S Voltage Controlled Crystal Oscillator With 100ppm Trim Range AT CUT 18pF, 100kHz 5V INPUT 0V TO 5V 100k MV1405* 5 1000pF 4 11 5V 1k 12 9 1k 7 8 6 OUTPUT 100pF 10 2k 5V INPUT PULSE 100pF 1k 2k 0V TO 1V INPUT LM385-1.2 6 U 10k – 1/2 LT319A + 1/2 LT319A 1/2 LT319A + 3 39k 20k 10 – 3k 20k 2k 5V LT119/319 TA5 Voltage Controlled High Speed One Shot 5V – + 11 7 680Ω 7408 1/2 LT319A 9 8 5V 10k 4 680Ω 12 3 6 5V 300pF LT119/319 TA6 OUTPUT 0 µs TO 1µs (20ns MINIMUM) + 1/2 LT319A 120pF 5 – 119a319afb LT119A/LT319A LM119/LM319 TYPICAL APPLICATIO S 10-Bit Serial Output A/D Converter 5V INPUT 0V TO 3.5V 20k* LT1004-1.2 10k PN4250 PN4250 4 5 82k 0.1µF † 2N3904 1k 3.9k *1% FILM –5V † POLYSTYRENE, MOUNT CAPACITORS CLOSE TOGETHER 1N4148 1k 15k CONVERSION TIME = 10ms * = 1% CAPACITORS ARE POLYSTYRENE MOUNT IN CLOSE PROXIMITY LT119/319 TA7 15V + 10µF 4.7k 100Ω 2N2907 12k 0.003µF † 3k 2N2222 *TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN † POLYSTYRENE CAPACITOR U 10k 5V 10k* 4.7k 5V – + 6 –5V 11 12 3 1N4148 1000µF † 1/2 LT119A 9 74C04 + 1/2 LT119A 7 1k 10 1N4148 – 8 39k DATA OUT CONVERT COMMAND INPUT (TTL) 5V 5 Microsecond Sample-and-Hold with Zero Hold Step 1N4148 3k 15V 2N4931 15V 11 VOUT 240Ω 2N2907 – 12 1/2 LT119A 3 5 3.3k –15V 9k 10pF 2pF TO 8pF* 10 – 1/2 LT119A 7 8 15V 2N2907 20k + 6 4 1k 1k 9k 9 + INPUT –15V 1N4148 3k Q VS CLK D 74C74 CLR PRESET 5V 0V SAMPLE HOLD LT119/319 TA8 119a319afb 7 LT119A/LT319A LM119/LM319 SCHEMATIC DIAGRAM R1 3.5k R2 4k R3 4k Q3 – 5.6V INPUTS 5.6V Q1 Q2 R4 3k R5 3k + Q22 R23 4k Q21 TO OTHER SIDE LT119A R25 600Ω R24 250Ω Q20 Q19 R21 Q18 900Ω R19 250Ω R14 2k R22 60Ω R20 3.6k R18 1.9k Q11 R13 600Ω Q12 8 W V+ R6 3k Q4 Q7 Q6 R11 13k R8 2k R9 18k Q13 Q10 Q14 Q16 R16 600Ω R7 3k Q9 Q8 C1 18pF R10 170Ω R12 13k Q15 R15 300 OUTPUT Q5 Q17 R17 3Ω V– GND 119a319afb W LT119A/LT319A LM119/LM319 PACKAGE DESCRIPTIO SEATING PLANE .010 – .045* (0.254 – 1.143) .016 – .021** (0.406 – 0.533) 36°BSC .028 – .034 (0.711 – 0.864) *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 U 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 GAUGE PLANE .165 – .185 (4.191 – 4.699) REFERENCE PLANE .500 – .750 (12.700 – 19.050) .027 – .045 (0.686 – 1.143) PIN 1 .230 ( 5.842) TYP .110 – .160 (2.794 – 4.064) INSULATING STANDOFF OBSOLETE PACKAGE 119a319afb 9 LT119A/LT319A LM119/LM319 PACKAGE DESCRIPTIO .300 BSC (7.62 BSC) .008 – .018 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 10 U 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 .025 (0.635) RAD TYP .220 – .310 (5.588 – 7.874) 1 2 3 4 5 6 7 .200 (5.080) MAX .015 – .060 (0.381 – 1.524) 0° – 15° .045 – .065 (1.143 – 1.651) .014 – .026 (0.360 – 0.660) .100 (2.54) BSC .125 (3.175) MIN J14 0801 OBSOLETE PACKAGE 119a319afb LT119A/LT319A LM119/LM319 PACKAGE DESCRIPTIO .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 .005 (0.125) .100 MIN (2.54) BSC ( +0.889 8.255 –0.381 ) INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) NOTE: 1. DIMENSIONS ARE 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. U 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 .255 ± .015* (6.477 ± 0.381) 1 .130 ± .005 (3.302 ± 0.127) .020 (0.508) MIN 2 3 4 5 6 7 .045 – .065 (1.143 – 1.651) .065 (1.651) TYP .120 (3.048) MIN .018 ± .003 (0.457 ± 0.076) N14 1002 119a319afb 11 LT119A/LT319A LM119/LM319 TYPICAL APPLICATIO 5V 3.3k 50pF POLYSTYRENE 5V 470Ω 10k 2k † 0V TO 10V 20k 5 2N2369 5V 330Ω TTL OUT 5kHz TO 2MHz ALL DIODES 1N4148 † SET SCALE FACTOR 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q U 5kHz to 2MHz V →F Converter – 12 0.01µF 1/2 LT119A 4 + 3 470Ω 22pF 5V 1M 10k 220Ω 10k LT1004-1.2 –5V 7 11 2k – 1/2 LT119A 8 10 0.1µF + 6 9 3k –5V LT119/319 TA9 119a319afb LT/TP 1102 1K REV B • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1994