LT319A

LT119A LINER

Document overview

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Technical content

n Guaranteed Maximum 0.5mV Input Offset Voltage n Input Protection Diodes n Operates From Single 5V Supply n 25mA Drive Capability n 80ns Response Time 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. Dual Comparator FEATURES DESCRIPTIONU n Window Detectors n High Speed One Shot n Relay/Lamp Drivers n Voltage Controlled Oscillators APPLICATIONSU TYPICAL APPLICATIONU 500Ω TTL OUTPUT LT119/319 TA1 10 3 1/2 LT319A 1/2 LT319A VUT VOUT = 5.0V FOR VLT ≤ VIN ≤ VUT VOUT = 0V FOR VIN ≤ VLT OR VIN ≤ VUT VIN VLT *ALLOWED WINDOW FOR SINGLE +5V SUPPLY IS 1.2V TO 3.8V Window Detector* TIME (ns) INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) 50 150 200 LT119/319 TA2 100 0 100 250 300 350 20mV 2mV 5mV VS = ±15V RL = 500Ω V++ = 5V TA = 25°C Response Time for Various Input Overdrives

PACKAGE/ORDER INFORMATIONW UUABSOLUTE MAXIMUM RATINGSW WW U TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W TOP VIEW J PACKAGE 14-LEAD CERAMIC DIP N PACKAGE 14-LEAD PLASTIC DIP NC NC GND +INPUT –INPUT V OUTPUT 2 NC NC OUTPUT 1 V – INPUT 2 +INPUT 2 GND 2 TJMAX = 150°C, θJA = 100°C/ W (J) TJMAX = 85°C, θJA = 100°C/ W (N)

ELECTRICAL CHARACTERISTICS

Input Voltage (Note 1) Operating Temperature Range Consult factory for Industrial and Military grade parts. LT119A LT119 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS VOS Input Offset Voltage V S = ±15V, VCM = 0 0.3 0.5 4 mV VOS Input Offset Voltage (Note 3) 0.5 1.0 0.7 4 mV l 1.2 2.0 7 mV CMRR Common-Mode Rejection Ratio 90 106 dB I OS Input Offset Current (Note 3) 20 40 30 75 nA l 75 100 nA IB Input Bias Current (Note 3) 150 500 150 500 nA l 1000 1000 nA AV Voltage Gain 20 40 10 40 V/mV Response Time (Note 4) 80 80 ns VSAT Saturation Voltage V IN ≤ –5mV, IO = 25mA 0.75 1.5 0.75 1.5 V V+ ≥ 4.5V, V– = 0V VIN ≤ –6mA, ISINK ≤ 3.2mA TA ≥ 0°C 0.23 0.4 0.23 0.4 V TA ≤ 0°C 0.6 0.6 V Output Leakage Current V IN ≥ 5mV, VOUT = 35V 0.2 2 0.2 2 µA l 11 0 11 0 µA Input Voltage Range V S = ±15V l –12 ±13 12 –12 ±13 12 V V+ = 5V, V– = 0V l 13 1 3 V (Note 2) TOP VIEW –INPUT 2 V – 10 9 H PACKAGE 10-LEAD TO-5 METAL CAN

73 GND 2

+INPUT 1 –INPUT 1 GND OUTPUT 1 +INPUT 2 LT119AH LM119H LT319AH LM319H LT119AJ LM119J LT319AJ LM319J LT319AN LM319N ORDER PART NUMBER

ELECTRICAL CHARACTERISTICS(Note 2) LT119A LT119 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Differential Input Voltage l ±5 ±5V IS Supply Current V + = 5V, V– = 0V 4.3 4.3 mA IS Positive Supply Current V S = ±15V 8 11.5 8 11.5 mA IS Negative Supply Current V S = ±15V 3 4.5 3 4.5 mA VOS Input Offset Voltage V S = ±15V, VCM = 0V 0.3 0.5 8 mV VOS Input Offset Voltage R S ≤ 5k 0.5 1 2 8 mV (Note 3) l 21 0 m V CMRR Common-Mode Rejection Ratio 90 106 dB IOS Input Offset Current (Note 3) 30 40 80 200 nA l 60 300 nA IB Input Bias Current (Note 3) 150 500 250 1000 nA l 1000 1200 nA AV Voltage Gain 20 40 8 40 V/mV Response Time (Note 4) 80 80 ns VSAT Saturation Voltage V IN ≤ –10mV, ISINK = 25mA TA = 25°C 0.75 1.5 0.75 1.5 V V+ ≥ 4.5V, V– = 0V Output Leakage Current V IN ≥ 10mV, VOUT = 35V 0.2 10 0.2 10 µA Input Voltage Range V S = ±15V l ±13 ±13 V V+ = 5V, V– = 0V l 13 1 3 V Differential Input Voltage l ±5 ±5V IS Supply Current V + = 5V, V– = 0V 4.3 4.3 mA IS Positive Supply Current V S = ±15V 8 12.5 8 12.5 mA IS Negative Supply Current V S = ±15V 3 5 3 5 mA The l 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.

TYPICAL PERFORMANCE CHARACTERISTICS UW Input CurrentsTransfer Function Response Time for Various Input Overdrives TIME (ns) –100 INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) –50 50 150 200 LT119/319 G4 0 100 250 300 350 2mV 20mV 5mV VS = ±15V RL = 500Ω V++ = 5V TA = 25°C Response Time for Various Input Overdrives TIME (ns) –100 INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) –50 50 150 200 LT119/319 G6 0 100 250 300 350 20mV 2mV 5mV VS = 5V RL = 500Ω V++ = 5V TA = 25°C Output Saturation Voltage OUTPUT VOLTAGE (V) OUTPUT CURRENT (mA) 0.8 LT119/319 G7 0.2 0.4 0.6 1.0 VS = ±15V INPUT OVERDRIVE = 5mV TJ = 25°C OUTPUT VOLTAGE (V) SHORT-CIRCUIT CURRENT (mA)20 120 1 0 LT119/319 G9 1 5 100 POWER DISSIPATION (W) 0.2 0.4 0.6 0.8 1.2 1.0 TJ = 25°C SHORT-CIRCUIT CURRENT AFTER 3 MINUTES POWER DISSIPATION Supply Current Response Time for Various Input Overdrives TIME (ns) INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) 50 150 200 LT119/319 G5 100 0 100 250 300 350 20mV 2mV 5mV VS = 5V RL = 500Ω V++ = 5V TA = 25°C DIFFERENTIAL INPUT VOLTAGE (V) –10 INPUT BIAS CURRENT (nA) 200 300 400 LT119/319 G2 100 –100 –6 –2 2 10 VS = ±15V TA = 25°C MAXIMUM DIFFERENTIAL INPUT VOLTAGE Input Characteristics SUPPLY VOLTAGE (V) SUPPLY CURRENT (mA) 51 0 15 20 LT119/319 G8 POSITIVE SUPPLY NEGATIVE SUPPLY TJ = 25°C DIFFERENTIAL INPUT VOLTAGE (mV) –1.0 OUTPUT VOLTAGE HIGH (V) OUTPUT VOLTAGE LOW (V) 0.6 LT119/319 G1 –0.6 –0.2 0.2 1.0 5.0 V++ = 36V V++ = 5V VS = ±15V RL = 1.4k TA = 25°C TEMPERATURE (°C) –55 INPUT CURRENT (nA) 150 200 250 –15 25 45 125 LT119/319 G3 100 –35 5 65 85 105 VS = ±15V BIAS OFFSET Output Limiting Characteristics

+ 1k 100k 10kINPUT 0V TO 5V AT CUT 18pF, 100kHz 1000pF MV1405* 1/2 LT319A 1/2 LT319A TYPICAL PERFORMANCE CHARACTERISTICS UW Common-Mode Limits Supply Current TYPICAL APPLICATIONSU Relay Driver High Noise Immunity 60Hz Sync Circuit 9 – LT119/319 TA4 1/2 LT319A OUTPUT 3.3k 10k 20k 0.15µF 10k 68k 1N414860Hz INPUT 10VP–P (TYP) 28V5V 35V LT119/319 TA3 INPUTS 1/2 LT319A Voltage Controlled Crystal Oscillator With 100PPM Trim Range SUPPLY CURRENT (mA) LT119/319 G11 TEMPERATURE (°C) – 55 – 35 –15 85 105 1252554 5 6 5 POSITIVE SUPPLY = 15V POSITIVE SUPPLY = 5V, V– = 0V NEGATIVE SUPPLY = –15V TEMPERATURE (°C) – 55 – 35 –15 COMMON-MODE LIMITS (V) 0.4 1.2 –2.0 –1.6 85 105 125 LT119/319 G10 0.8 2554 5 6 5 –1.2 –0.8 –0.4 V+ = 5V, V– = 0V VS = ±15V VS = ±15V, V+ = 5V, V– = 0V REFERRED TO SUPPLY VOLTAGES

680Ω 680Ω 10k INPUT PULSE 0V TO 1V INPUT LM385-1.2 1/2 LT319A 1/2 LT319A 7408 LT119/319 TA6 OUTPUT 0µs TO 1µs (20ns MINIMUM) 1/2 LT119A 8 7 15V –15V LT119/319 TA8 *TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN † POLYSTYRENE CAPACITOR 15V 15V –15V 10µF 4.7k 12k 10k 2N2907 2N2907100Ω 240Ω 1N4148 0.003µF† 2N4931 2N2907 2N2222 3.3k 9k 20k 10pF 2pF TO 8pF* 15V INPUT 1N4148 SAMPLE HOLD0V Q CLR PRESET VS VOUT CLK D 74C74 1/2 LT119A

5 Microsecond Sample-and-Hold with Zero Hold Step

–5V –5V LT119/319 TA7 LT1004-1.2 PN4250 PN4250 82k 10k 4.7k 1k1k 20k* 0.1µF† 1000µF† 2N3904 INPUT 0V TO 3.5V 1N4148 1N4148 1N4148 3.9k CONVERT COMMAND INPUT (TTL) 15k 39k 10k* DATA OUT 74C04 *1% FILM † POLYSTYRENE, MOUNT CAPACITORS CLOSE TOGETHER CONVERSION TIME = 10ms * = 1% CAPACITORS ARE POLYSTYRENE MOUNT IN CLOSE PROXIMITY 10-Bit Serial Output A/D Converter Voltage Controlled High Speed One Shot

5kHz to 2MHz V→ F Converter 1/2 LT119A 10k 1/2 LT119A 3.3k 20k † SET SCALE FACTOR 2k † 0V TO 10V 0.01µF 22pF –5V 10k 10k 470Ω 470Ω 50pF POLYSTYRENE 2N2369 330Ω –5V LT1004-1.2 0.1µF TTL OUT 5kHz TO 2MHz ALL DIODES 1N4148 LT119/319 TA9 220Ω SCHEMATIC DIAGRAMWW 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. R11 13k R12 13k R17 R10 170Ω 18pF 3kR3 3.5k Q21 Q11 Q12 Q13 Q10 Q15 Q17 GNDV– Q16 Q14 Q20 Q18 Q19 Q22 5.6V 5.6V R25 600Ω R24 250Ω R23 R22 60Ω R20 3.6k R21 900Ω R18 1.9k 18k R19 250Ω R14 R13 600Ω R15 300 R16 600Ω TO OTHER SIDE LT119A OUTPUT INPUTS

0.015 (0.380) MIN 0.125 (3.175) MIN 0.130 ± 0.005 (3.302 ± 0.127) 0.045 – 0.065 (1.143 – 1.651) 0.065 (1.651) TYP 0.018 ± 0.003 (0.457 ± 0.076) 0.100 ± 0.010 (2.540 ± 0.254) 0.075 ± 0.015 (1.905 ± 0.381) 0.260 ± 0.010* (6.604 ± 0.254) 0.770* (19.558) MAX 31 2 4 5 6 7 891011121314 0.009 – 0.015 (0.229 – 0.381) 0.300 – 0.325 (7.620 – 8.255) 0.325 +0.025 –0.015 +0.635 –0.3818.255() *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm). Dimension in inches (millimeters) unless otherwise noted.PACKAGE DESCRIPTIONU LT/GP 0694 5K REV A • PRINTED IN USA  LINEAR TECHNOLOGY CORPORA TION 1 994 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7487 (408) 432-1900 l FAX: (408) 434-0507 l TELEX: 499-3977 H Package 10-Lead T0-5 Metal Can 0.050 (1.270) MAX 0.010 – 0.045 (0.254 – 1.143) SEATING PLANE 0.040 (1.016) MAX 0.165 – 0.185 (4.191 – 4.699) GAUGE PLANE REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) 0.305 – 0.335 (7.747 – 8.509) 0.335 – 0.370 (8.509 – 9.398) DIA NOTE: LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND SEATING PLANE. 0.016 – 0.021 (0.406 – 0.533) 0.230 ( 5.842) BSC 0.027 – 0.045 (0.686 – 1.143) 0.027 – 0.034 (0.686 – 0.864) 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF 36°BSC H10(5) 0592 J Package 14-Lead Ceramic DIP N Package 14-Lead Plastic DIP J14 0594 0.045 – 0.068 (1.143 – 1.727) 0.100 ± 0.010 (2.540 ± 0.254) 0.014 – 0.026 (0.360 – 0.660) 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.125 (3.175) MIN

0.300 BSC

(0.762 BSC) 0.008 – 0.018 0.385 ± 0.025 (9.779 ± 0.635) 1 234 56 7 0.220 – 0.310 (5.588 – 7.874) 0.785 (19.939) MAX0.005 (0.127) MIN 14 11 8 91013 12 0.025 (0.635) RAD TYP NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP OR TIN PLATE LEADS. 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION CORNER LEADS OPTION (4 PLCS)