LM319

LT119A/LT319A LM119/LM319 Dual Comparator FEATURES s s s s s DESCRIPTION The LT119A 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. Guaranteed Maximum 0.5mV Input Offset Voltage Input Protection Diodes Operates From Single 5V Supply 25mA Drive Capability 80ns Response Time APPLICATIONS s s s s Window Detectors High Speed One Shot Relay/Lamp Drivers Voltage Controlled Oscillators TYPICAL APPLICATION Window Detector* 5V VUT OUTPUT VOLTAGE (V) 3 Response Time for Various Input Overdrives 6 5 4 3 2 1 INPUT VOLTAGE (mV) VOUT = 5.0V FOR VLT ≤ VIN ≤ VUT VOUT = 0V FOR VIN ≤ VLT OR VIN ≤ VUT 0 100 50 0 0 50 100 150 200 250 300 350 TIME (ns) LT119/319 TA2 + – 10 1 500Ω TTL OUTPUT 1/2 LT319A VIN 4 20mV 2 8 + 1/2 LT319A 6 7 VLT 9 – 5 LT119/319 TA1 *ALLOWED WINDOW FOR SINGLE +5V SUPPLY IS 1.2V TO 3.8V U U U 2mV 5mV VS = ±15V RL = 500Ω V ++ = 5V TA = 25°C 1 LT119A/LT319A LM119/LM319 ABSOLUTE MAXIMUM RATINGS 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 5) .......................... ± 5V Differential Input Current (Note 5) ........................ ± 5mA Input Voltage (Note 1) Output Short-Circuit Duration ................................... 10s Operating Temperature Range LT119A, LM119 ............................... – 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 PACKAGE/ORDER INFORMATION TOP VIEW V+ –INPUT 2 OUTPUT 1 10 1 9 GND 2 +INPUT 1 3 –INPUT 1 4 5 V– 6 OUTPUT 2 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 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 LT119AJ LM119J LT319AJ LM319J LT319AN LM319N J PACKAGE 14-LEAD CERAMIC DIP N PACKAGE 14-LEAD PLASTIC DIP TJMAX = 150°C, θJA = 100°C/ W (J) TJMAX = 85°C, θJA = 100°C/ W (N) Consult factory for Industrial and Military grade parts. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER VOS Input Offset Voltage VOS Input Offset Voltage CMRR IOS IB AV VSAT Common-Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage CONDITIONS VS = ±15V, VCM = 0 (Note 3) (Note 2) MIN LT119A TYP MAX 0.3 0.5 0.5 1.0 1.2 2.0 106 20 40 75 150 500 1000 40 80 0.75 1.5 MIN LT119 TYP 0.7 MAX 4 4 7 75 100 500 1000 UNITS mV mV mV dB nA nA nA nA V/mV ns V q 90 (Note 3) q 30 150 10 40 80 0.75 (Note 3) q 20 (Note 4) VIN ≤ – 5mV, IO = 25mA V+ ≥ 4.5V, V – = 0V VIN ≤ – 6mA, ISINK ≤ 3.2mA TA ≥ 0°C TA ≤ 0°C VIN ≥ 5mV, VOUT = 35V q 1.5 0.23 0.2 1 ±13 Output Leakage Current Input Voltage Range VS = ±15V V+ = 5V, V – = 0V q q –12 1 0.4 0.6 2 10 12 3 0.23 0.2 1 ±13 –12 1 0.4 0.6 2 10 12 3 2 U W U U WW W V V µA µA V V LT119A/LT319A LM119/LM319 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER Differential Input Voltage IS Supply Current IS Positive Supply Current IS Negative Supply Current VOS Input Offset Voltage VOS Input Offset Voltage CMRR IOS IB AV VSAT Common-Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage CONDITIONS (Note 2) MIN q V + = 5V, V – = 0V VS = ±15V VS = ±15V VS = ±15V, VCM = 0V RS ≤ 5k (Note 3) (Note 3) q 90 q (Note 3) q 20 (Note 4) VIN ≤ –10mV, ISINK = 25mA TA = 25°C V+ ≥ 4.5V, V– = 0V VIN ≤ – 10mV, ISINK ≤ 3.2mA VIN ≥ 10mV, VOUT = 35V VS = ±15V V+ = 5V, V – = 0V V+ = 5V, V – = 0V VS = ±15V VS = ±15V LT119A TYP MAX ±5 4.3 8 11.5 3 4.5 0.3 0.5 0.5 1 2 106 30 40 60 150 500 1000 40 80 0.75 1.5 0.4 10 3 ±5 4.3 8 3 12.5 5 MIN LT119 TYP 4.3 8 3 2 MAX ±5 11.5 4.5 8 8 10 200 300 1000 1200 80 250 8 40 80 0.75 0.3 0.2 ±13 1 4.3 8 3 UNITS V mA mA mA mV mV mV dB nA nA nA nA V/mV ns V V µA V V V mA mA mA 1.5 0.4 10 3 ±5 12.5 5 q q q q Output Leakage Current Input Voltage Range Differential Input Voltage Supply Current Positive Supply Current Negative Supply Current 0.3 0.2 ±13 1 IS IS IS The q denotes specifications which apply over the full operating temperature range. Note 1: For supply voltages less than ±15V, the maximum input voltage is equal to the supply voltage. Note 2: Unless otherwise noted, supply voltage equals ±15V and 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 3: 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 4: Response time specified is for a 100mV input step with 5mV overdrive. Note 5: 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. 3 LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE 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 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 VS = ±15V RL = 500Ω V ++ = 5V TA = 25°C INPUT VOLTAGE (mV) 0 –50 –100 0 50 100 150 200 250 300 350 TIME (ns) LT119/319 G4 INPUT VOLTAGE (mV) 100 50 0 0 50 INPUT VOLTAGE (mV) 0 Output Saturation Voltage 25 TJ = 25°C 20 SHORT-CIRCUIT CURRENT (mA) OUTPUT CURRENT (mA) SUPPLY 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 LT119/319 G7 Input Characteristics 400 VS = ±15V TA = 25°C 300 250 Input Currents VS = ±15V 200 BIAS 150 OUTPUT VOLTAGE LOW (V) 12 10 8 6 4 2 0 200 100 100 0 –100 –10 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 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 TJ = 25°C Output Limiting Characteristics 1.2 TJ = 25°C 100 80 60 40 POWER DISSIPATION 20 0 0.2 0 SHORT-CIRCUIT CURRENT AFTER 3 MINUTES 1.0 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) 15 LT119/319 G9 LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE CHARACTERISTICS Common-Mode Limits V+ –0.4 COMMON-MODE LIMITS (V) VS = ±15V SUPPLY CURRENT (mA) –0.8 –1.2 –1.6 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 APPLICATIONS Relay Driver 5V 9 INPUTS 8 10 6 7 5 35V 60Hz INPUT 10VP–P (TYP) 1N4148 20k 0.15µF 3.3k 9 – + 1/2 LT319A INPUT 0V TO 5V 100k MV1405* 4 1000pF 3 10 5V 1k 1 8 1k 6 7 5 OUTPUT U UW – Supply Current 12 V + = 5V, V – = 0V 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 High Noise Immunity 60Hz Sync Circuit 5V 28V 68k – + 5 10 6 OUTPUT 1/2 LT319A 8 7 10k LT119/319 TA3 Voltage Controlled Crystal Oscillator With 100PPM Trim Range AT CUT 18pF, 100kHz 5V 10k 10k LT119/319 TA4 – 1/2 LT319A + 1/2 LT319A + 2 39k 20k 9 – 3k 20k 2k 5V LT119/319 TA5 5 LT119A/LT319A LM119/LM319 TYPICAL APPLICATIONS Voltage Controlled High Speed One Shot 5V 100pF 9 2k 5V INPUT PULSE 100pF 1k 2k 0V TO 1V INPUT LM385-1.2 5V INPUT 0V TO 3.5V 20k* LT1004-1.2 10k PN4250 PN4250 3 4 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 † 10k 1 2N2907 3k 20k 2N2222 *TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN † POLYSTYRENE CAPACITOR 6 U – + 10 6 680Ω 7408 1/2 LT319A 8 2 5V 10k OUTPUT 0µs TO 1µs (20ns MINIMUM) 680Ω 1 7 5 300pF LT119/319 TA6 3 + 1/2 LT319A 120pF 4 – 5V 10-Bit Serial Output A/D Converter 5V 10k* 4.7k 5V – + 5 –5V 10 1 2 1N4148 1000µF † 1/2 LT119A 8 74C04 + 1/2 LT119A 1k 6 DATA OUT 39k 9 1N4148 – 7 CONVERT COMMAND INPUT (TTL) 5V 5 Microsecond Sample-and-Hold with Zero Hold Step 1N4148 3k 15V 2N4931 15V 10 VOUT 240Ω 2N2907 – 1/2 LT119A 3 3.3k –15V 9k 10pF 2pF TO 8pF* 9 – 1/2 LT119A 2 + 5 4 1k 6 7 1k 9k 8 + 15V INPUT –15V 1N4148 3k Q VS CLK D 74C74 CLR PRESET 5V 0V SAMPLE HOLD LT119/319 TA8 LT119A/LT319A LM119/LM319 TYPICAL APPLICATIONS 5kHz to 2MHz V →F Converter 5V 3.3k 50pF POLYSTYRENE 5V 470Ω 10k 2k † 0V TO 10V 20k 4 0.01µF 3 2N2369 5V 330Ω TTL OUT 5kHz TO 2MHz ALL DIODES 1N4148 † SET SCALE FACTOR 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 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 – 1/2 LT119A 1 470Ω 22pF 5V 1M + 2 10k 220Ω 10k LT1004-1.2 –5V 6 10 2k – 1/2 LT119A 9 0.1µF 7 + 5 8 3k –5V LT119/319 TA9 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 W 7 LT119A/LT319A LM119/LM319 PACKAGE DESCRIPTION 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX 0.050 (1.270) MAX GAUGE PLANE 0.010 – 0.045 (0.254 – 1.143) 0.165 – 0.185 (4.191 – 4.699) REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF SEATING PLANE CORNER LEADS OPTION (4 PLCS) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.300 BSC (0.762 BSC) 0.008 – 0.018 (0.203 – 0.457) 0.385 ± 0.025 (9.779 ± 0.635) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP OR TIN PLATE LEADS. 0.300 – 0.325 (7.620 – 8.255) 0.130 ± 0.005 (3.302 ± 0.127) 0.015 (0.380) MIN 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 +0.635 8.255 –0.381 ( ) 0.125 (3.175) MIN *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm). 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977 U Dimension in inches (millimeters) unless otherwise noted. H Package 10-Lead T0-5 Metal Can 0.016 – 0.021 (0.406 – 0.533) 36°BSC 0.027 – 0.034 (0.686 – 0.864) 0.027 – 0.045 (0.686 – 1.143) 0.230 ( 5.842) BSC H10(5) 0592 NOTE: LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND SEATING PLANE. J Package 14-Lead Ceramic DIP 0.005 (0.127) MIN 0.785 (19.939) MAX 14 13 12 11 10 9 8 0.025 (0.635) RAD TYP 0.220 – 0.310 (5.588 – 7.874) 1 2 3 4 5 6 7 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0° – 15° 0.045 – 0.068 (1.143 – 1.727) 0.014 – 0.026 (0.360 – 0.660) 0.100 ± 0.010 (2.540 ± 0.254) 0.125 (3.175) MIN J14 0594 N Package 14-Lead Plastic DIP 0.045 – 0.065 (1.143 – 1.651) 14 13 12 0.770* (19.558) MAX 11 10 9 8 0.260 ± 0.010* 0.065 (6.604 ± 0.254) (1.651) TYP 0.075 ± 0.015 (1.905 ± 0.381) 0.100 ± 0.010 (2.540 ± 0.254) 1 0.018 ± 0.003 (0.457 ± 0.076) 2 3 4 5 6 7 N14 0594 LT/GP 0694 5K REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1994