LT1017/LT1018 Micropower Dual Comparator U FEATURES ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO The LT®1017/LT1018 are general purpose micropower comparators. The LT1017 is optimized for lowest operating power while the LT1018 operates at higher power and higher speed. Both devices can operate from a single 1.1V cell up to 40V. The output stage includes a class “B” pullup current source, eliminating the need for an external resistive pull-up and saving power. The output stage is also designed to allow driving loads connected to a supply more positive than the device, as can comparators with open-collector output stages. Maximum Offset Voltage: 1mV Maximum Bias Current: 15nA Typical Output Drive: 70mA Operates from 1.1V to 40V Internal Pull-Up Current Output Can Drive Loads Above V+ 30µA Supply Current (LT1017) 110µA Supply Current (LT1018) U APPLICATIO S ■ ■ ■ Input specifications are also excellent. On-chip trimming minimizes offset voltage, while high gain and common mode rejection ratio keep other input referred errors low. Common mode voltage range includes ground. Special circuitry prevents false output states even if the input is overdriven. Power Supply Monitors Relay Driving Oscillators The LT1017/LT1018 are pin compatible with older dual comparators such as 393 type devices. , LTC and LT are registered trademarks of Linear Technology Corporation. U TYPICAL APPLICATIO Supply Current 1.5V Powered Refrigerator Alarm V+ 1.5V 160 665k 1% 52.3k 1% 8 1/2 LT1017 2 5 YSI 44011 258.3k AT 5°C 333.1k AT 0°C + – + 1/2 LT1017 6 1 – 7 4 280k 1% 1017/18 TA01 OUTPUT HIGH FOR 0°C ≤ T ≤ 5°C SUPPLY CURRENT (µA) 3 665k 1% LT1018 OUTPUTS LOW 140 120 100 80 LT1017 OUTPUTS LOW 60 40 LT1018 OUTPUTS HIGH LT1017 OUTPUTS HIGH 20 0 1 2 4 10 20 40 TOTAL SUPPLY VOLTAGE (V) 100 1017/18 TA02 1 LT1017/LT1018 W W W AXI U U ABSOLUTE RATI GS (Note 1) Supply Voltage ....................................................... 40V Differential Input Voltage ........................................ 40V Input Voltage ............................................ – 0.3V to 40V Short-Circuit Duration .................................... Indefinite Storage Temperature Range ................ – 65°C to 150°C Operating Temperature Range LT1017M/LT1018M ...................... – 55°C to 125°C LT1017C/LT1018C ............................... 0°C to 70°C LT1017I ........................................... – 40°C to 85°C Lead Temperature (Soldering, 10 sec)................. 300°C W U U PACKAGE/ORDER I FOR ATIO TOP VIEW V+ 7 OUTPUT B OUTPUT A 1 –IN A 2 – A B + + TOP VIEW TOP VIEW 8 OUTPUT A 1 –IN A 2 – 6 –IN B 5 +IN B 4 V– H PACKAGE 8-LEAD TO-5 METAL CAN +IN A 3 – +A +IN A 3 V TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W – – B+ 4 8 V+ 7 OUTPUT B 6 5 +IN A 1 8 –IN A V– 2 7 OUT A –IN B +IN B 3 6 V+ +IN B –IN B 4 5 OUT B N8 PACKAGE 8-LEAD PDIP S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 130°C/W TJMAX = 150°C, θJA = 190°C/W ORDER PART NUMBER ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LT1017MH LT1017CH LT1018MH LT1018CH LT1017CN8 LT1017IN8 LT1018CN8 LT1017CS8 LT1017IS8 LT1018CS8 1017 1017I 1018 OBSOLETE Consult factory for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the operating temperature range of – 55°C to 85°C for M grade parts, – 40°C to 85°C for I grade parts and 0°C to 70°C for C grade parts. PARAMETER CONDITIONS Offset Voltage (Note 2) ±0.75V ≤ VS ≤ ±20V Bias Current ±0.75V ≤ VS ≤ ±20V MIN 25°C ● LT1017 TYP ● 125°C Offset Current ±0.75V ≤ VS ≤ ±20V 25°C ● VS = ±20V, – 20V ≤ VCM ≤ 19.1V 25°C ● 125°C Power Supply Rejection Ratio ±0.75V ≤ VS ≤ ±20V 25°C ● 125°C 2 LT1018 TYP MAX UNITS 1 1.4 5 0.4 0.5 0.7 1 1.4 1.5 mV mV mV 5 7 10 15 25 60 15 18 75 100 110 nA nA nA 0.4 0.5 2 3 20 1 1.6 8 12 20 nA nA nA 125°C Common Mode Rejection Ratio MIN 0.4 0.5 125°C 25°C MAX 105 100 82 115 115 100 105 100 95 115 115 110 dB dB dB 96 95 82 110 105 96 95 86 110 105 100 dB dB dB LT1017/LT1018 ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the operating temperature range of – 55°C to 85°C for M grade parts, – 40°C to 85°C for I grade parts and 0°C to 70°C for C grade parts. PARAMETER CONDITIONS MIN Gain No Load, VOUT = ±19.9V (Note 3) 25°C ● 125°C RL = 4k, VOUT = ±19V 25°C ● Output Sink Current V + = 4.5V, V – = 0V Overdrive > 30mV 25°C ● 125°C Output Source Current V + = 40V, V – = 0V VIN = 5mV, VOUT = 0.4V 25°C ● 125°C V + = 1.2V, V – = 0V 25°C VIN = 5mV, VOUT = 0.4V ● 125°C Negative Output Saturation Positive Output Saturation Leakage Current LT1017 TYP LT1018 TYP MAX UNITS 115 115 110 105 100 125 120 dB dB dB 100 94 110 100 94 110 dB dB 30 25 10 65 50 20 35 25 10 70 50 30 mA mA mA 30 25 25 75 70 75 75 50 50 250 220 200 µA µA µA 25 15 25 35 20 40 70 45 40 140 120 110 µA µA µA IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA V + = 4.5V, V – = 0V VIN = –10mV 25°C 25°C 25°C 25°C 25°C 5 35 60 120 350 20 60 120 200 600 5 35 60 120 350 15 60 120 250 700 mV mV mV mV mV IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA V + = 4.5V, V – = 0V VIN = –10mV ● ● ● ● ● 5 40 75 150 600 20 75 150 300 900 8 35 70 150 500 20 70 150 300 900 mV mV mV mV mV IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA V + = 4.5V, V – = 0V VIN = –10mV 125°C 125°C 125°C 125°C 125°C 25 60 100 300 50 100 200 600 10 60 110 300 900 40 100 200 400 mV mV mV mV mV 25°C 25°C 40 175 45 190 50 80 250 90 300 100 300 35 175 45 190 50 80 250 90 300 100 300 mV mV mV mV mV mV 0.5 0.6 3 3 5 1 1.8 8 10 15 µA µA µA 30 40 60 80 80 110 110 250 250 300 µA µA µA 40 55 90 100 100 130 140 250 270 300 µA µA µA 1.2 1.2 1.2 V V V IOUT = 0µA = 10µA = 0µA = 10µA = 0µA = 10µA VS = 5V, VOUT = 40V VIN ≥ 100mV ● ● 125°C 125°C 25°C ● VS = 5V 25°C ● 125°C VS = 40V 25°C ● 125°C Minimum Operating Voltage MIN 110 105 100 125°C Supply Current MAX IOUT = 1mA 25°C ● 125°C Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: Offset voltage is guaranteed over a common mode voltage range of V – ≤ VIN ≤ (V+ – 0.9V). 1.15 1.15 1.15 Note 3: No load gain is guaranteed but not tested (LT1017 only). 3 LT1017/LT1018 U W TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current Input Offset Current LT1018 VCM = V – LT1018 VCM = V + – 1V 10 LT1017 VCM = V – IBIAS REVERSES POLARITY LT1017 VCM = V + – 1V 1 –50 –25 0 1.5 1.0 0.5 50 25 75 0 TEMPERATURE (°C) 100 0 –20 125 V+ –0.4 Common Mode Limits 0.1 VCM HIGH –1.0 V– VCM LOW –0.2 –0.4 –0.6 V– –0.2 –0.4 –0.6 –0.8 COMMON MODE VOLTAGE (V) 0 Positive Supply Current 1 10 OUTPUT SINK CURRENT (mA) 1017/18 G07 4 40 LT1017 OUTPUTS HIGH 0 25 50 75 100 125 150 TEMPERATURE (°C) Output Sinking Current Limit 100 OUTPUT CURRENT LIMIT (mA) POSITIVE SUPPLY CURRENT (µA) SATURATION VOLTAGE (mV) 100 LT1017 OUTPUTS LOW 60 NPN Output Saturation Voltage 10 0.1 80 1017/18 G06 1000 100 LT1018 OUTPUTS HIGH 100 1017/18 G05 10000 1000 120 0 –50 –25 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G04 LT1017 LT1018 OUTPUTS LOW 20 ∆VOS = 0.5mV VOLTAGES ARE REFERRED TO SUPPLIES –0.8 –50 –25 –1.0 VSUPPLY = 20V 140 –0.8 100 125°C 25°C 10 0.001 20 Supply Current 160 SUPPLY CURRENT (µA) COMMON MODE VOLTAGE (V) INPUT BIAS CURRENT (µA) 85°C 25°C –0.1 0.1 0.2 0 DIFFERENTIAL INPUT VOLTAGE (V) 1017/18 G03 –0.6 10 –0.2 1017/18 G02 100 LT1018 LT1017 – IB LT1017 Input Bias Current with Inputs Driven Below the Supply 0.01 0.2 LT1017 + IB 10 5 LT1018 0 –50 –25 25 50 75 100 125 150 TEMPERATURE (°C) 125°C LT1018 – IB 15 2.0 1017/18 G01 1 LT1018 + IB 2.5 BIAS CURRENT (nA) INPUT OFFSET CURRENT (nA) INPUT BIAS CURRENT (nA) Bias Current vs Differential Input 20 3.0 100 –55°C OUTPUT SHORTED TO V + 80 LT1018 LT1017 60 40 20 0 0.01 0.1 1 10 SINK CURRENT (mA) 100 1017/18 G08 1 10 TOTAL SUPPLY VOLTAGE (V) 100 1017/18 G09 LT1017/LT1018 U W TYPICAL PERFOR A CE CHARACTERISTICS 80 LT1018 VS = 5V 60 LT1017 VS = 5V TOTAL SWITCHING TIME (µs) OUTPUT CURRENT LIMIT (mA) Total Switching Time 100 OUTPUT SHORTED TO V + LT1018 VS = 40V 40 LT1017 VS = 40V 20 0 –50 –25 0 RL = 47k (LT1018) RL = 200k (LT1017) VOUT = 90% VFINAL VOVERDRIVE = 5mV LT1018 FALL 10 LT1017 RISE 1 10 OVERDRIVE (mV) 100 LT1017 Response Time VIN TRANSITION TIME (µs) TRANSITION TIME (µs) VOUT = 10% VFINAL 1017/18 G12 Positive Transition Time LT1017 RISE LT1017 FALL/ LT1018 RISE LT1018 FALL RL = 10k LT1018 VSUP = 2V LT1017 VSUP = 40V 1 5V LT1018 VSUP = 40V LT1017 VSUP = 2V VOUT RL = ∞ RL = 100k 0V 1k 40 V + = 5V 5µs/DIV V – = 0V VIN = 100mV STEP VOVERDRIVE = 10mV 10% VFINAL ≤ VOUT ≤ 90% VFINAL VOVERDRIVE = 10mV 0.1 1 10 20 30 TOTAL SUPPLY VOLTAGE (V) LT1018 FALL 10 10% VFINAL ≤ VOUT ≤ 90% VFINAL VOVERDRIVE = 10mV 0 LT1018 RISE 0.1 25 50 75 100 125 150 TEMPERATURE (°C) LT1017 FALL 1017/18 G11 Transition Time 10 10 1 0 1017/18 G10 100 LT1017 RISE LT1017 FALL LT1018 RISE 1 –50 –25 25 50 75 100 125 150 TEMPERATURE (°C) Output Delay 100 DELAY TIME (µs) Output Sinking Current Limit 100 100k 10k PULL-UP RESISTOR (Ω) 1M 1017/18 G15 1017/18 G14 1017/18 G13 LT1017 Response Time LT1018 Response Time LT1018 Response Time VIN VIN 5V RL = 10k 5V VOUT VIN RL = ∞ 5V RL = 100k VOUT VOUT 0V V + = 5V 5µs/DIV V – = 0V VIN = –100mV STEP VOVERDRIVE = –10mV 1017/18 G17 0V 0V V + = 5V 2µs/DIV V – = 0V VIN = 100mV STEP VOVERDRIVE = 10mV 1017/18 G16 V + = 5V 2µs/DIV V – = 0V VIN = –100mV STEP VOVERDRIVE = –10mV 1017/18 G18 5 LT1017/LT1018 UO TYPICAL APPLICATI S Driving Relays Increasing Positive Output Current 5V VIN VIN 8 – 3 + 3 + + 2 8 LT1017/ LT1018 1 LT1017 V+ V+ 12V 2 Delay On Power Up – 4 4 1 1µF VOUT 3 1N4148 V– 1017/18 TA03 100k 2N3904 2 1017/18 TA04 1k 8 + LT1017/ LT1018 – 1 4 20k 1017/18 TA05 LT1018 Op Amp, AV = 100 LT1017 Op Amp, AV = 100 5V 5V 10k 10k VIN 3 VIN 8 + LT1018 2 3 – R1* 2 VOUT – –5V 1M 15Ω 0.22µF 1017/18 TA06 VOUT RL ≥ 200k 4 –5V 1M RL 10k 1 LT1017 1 4 8 + RL = 100k BANDWIDTH = 30Hz –SLEW = 320V/ms +SLEW = 0.93V/ms *WITH R1 = 1k BANDWIDTH ≅ 200Hz 10k 10Ω 3.3µF 1017/18 TA07 Negative Voltage Regulator –SLEW = 23.5V/ms +SLEW = 0.017V/ms BANDWIDTH = 0.3Hz AT RL = 220k 2-Wire Comparator 4.7k VSUPPLY 510k LT1004 2.5V VIN 3 + 8 LT1018 – LT1017/ LT1018 3 100k 8 150pF + 4 2 510k 1 220µF VOUT –5V 50mA – 1N4148 ×2 OUTPUT 3V ≤ VSUPPLY ≤ 40V 4 LT1018 ONLY 0.01µF + 2 1 4.7k VSUPPLY 1k VIN 220pF 1017/18 TA08 –VIN – 5.2V TO –40V 3 2 + – 1N4148 ×4 8 LT1017/ LT1018 4 1 OUTPUT 3V ≤ VSUPPLY ≤ 40V 1017/18 TA09 6 LT1017/LT1018 UO TYPICAL APPLICATI S 5V Power Supply Monitor V+ 36.5k 1% 3k 5 2.5k 1% + 8 7 1/2 LT1017 6 3 – + 1 1/2 LT1017 LT1034 1.235V 2 OUTPUT HIGH FOR 4.5V ≤ VIN ≤ 5.5V – 4 OUTPUT VALID FOR V + ≥ 1.1V 11.2k 1% 1017/18 TA10 Precise Tri-Wave Generator TRIANGLE WAVE OUTPUT 0.5V TO 2.5V 5V 22k 0.047µF 3k 2N3904 2 – 1/2 LT1013 3 3k 8 1 22k + 3 4 + 8 1/2 LT1018 2 – 1 SQUARE WAVE OUTPUT 10pF 100k LT1009 2.5V 5 200k + 1/2 LT1018 6 – 7 4 47k 1017/18 TA11 7 LT1017/LT1018 UO TYPICAL APPLICATI S Power Supply Monitor VIN 160k 330Ω 1N4148 100k 2 + 1 LT1018 1µF 3 LT1004 1.2V 8 – + 390k 4 0.01µF 1017/18 TA12 120k 1N4148 VIN LED 6.00V OFF 5.25V FLASH AT 1Hz 5.00V FLASH AT 3Hz 4.75V FLASH AT 5Hz 1.5V Input Flyback Regulator 22µF + 1.5V 2M 2 1M 100k – 1/2 LT1018 3 6 + 1M 110k 220pF 1 0.0022µF 100k 1% FILM – 1/2 LT1018 1N4148 5 120k 1% FILM + 8 7 HP5082-2810 4 56.2k 1% FILM 120k LT1004 1.2V L1 4.7mH 8 OUTPUT 5V 365k 1% FILM 1N4148 + L1: RL1123-4.7-RENCO, INC 80% EFFICIENCY AT 2mA OUTPUT 47µF 1017/18 TA13 LT1017/LT1018 UO TYPICAL APPLICATI S Regulated Step-Up Converter 5V 400mH** 1N4148 100k 2 200k 3 8 – 0.1µF + + 1/2 LT1018 6 + 4 LT1004 1.2V 5 1N4148 1 1/2 LT1018 100µF R1* 910k 2000pF 7 OUTPUT 10V 2mA – ( ) R2* 120k *VOUT = 1.2 1 + R1 R2 **DALE TE-5/Q3/400mH 1017/18 TA14 Low Power* V-to-F Converter 3M 0.001µF POLYSTYRENE 1N4148 OUTPUT 0kHz TO 1kHz 9V 2 2N3904 1N4148 – 0.1µF 1/2 LT1018 3 100k 8 + 1N4148 1 1N4148 4 220pF 1M LT1034 1.2V 10k 330k – 7 *IQ ≅ 350µA 220k 2.2µF + INPUT 0V TO 1V 47k 1N4148 FULL-SCALE TRIM 910K 100k 1% 6 0.1µF 1/2 LT1018 + 5 1017/18 TA15 9 LT1017/LT1018 U PACKAGE DESCRIPTIO H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320) 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 SEATING PLANE 0.165 – 0.185 (4.191 – 4.699) GAUGE PLANE 0.010 – 0.045* (0.254 – 1.143) REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) 0.016 – 0.021** (0.406 – 0.533) 0.027 – 0.045 (0.686 – 1.143) 45°TYP PIN 1 0.027 – 0.034 (0.711 – 0.864) 0.200 (5.080) TYP 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8(TO-5) 0.200 PCD 1197 OBSOLETE 10 LT1017/LT1018 U PACKAGE DESCRIPTIO N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.400* (10.160) MAX 8 7 6 5 1 2 3 4 0.255 ± 0.015* (6.477 ± 0.381) 0.300 – 0.325 (7.620 – 8.255) 0.065 (1.651) TYP 0.009 – 0.015 (0.229 – 0.381) ( +0.035 0.325 –0.015 8.255 +0.889 –0.381 0.130 ± 0.005 (3.302 ± 0.127) 0.045 – 0.065 (1.143 – 1.651) ) 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 0.100 (2.54) BSC (0.457 ± 0.076) N8 1098 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 8 7 6 5 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) 1 0.010 – 0.020 × 45° (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0.053 – 0.069 (1.346 – 1.752) 0°– 8° TYP 0.016 – 0.050 (0.406 – 1.270) 0.014 – 0.019 (0.355 – 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 2 3 4 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 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. SO8 1298 11 LT1017/LT1018 U TYPICAL APPLICATION Fully Isolated Limit Comparator 5V INTERROGATE PULSE 500µs 1k INTERROGATE PULSE 2N3906 1µF – 4.7k 8 3 + 3k 1 1/2 LT1018 OUTPUT PULSE VIN > VTRIP NO OUTPUT PULSE FOR VIN < VTRIP 2N3906 20k 4 OUTPUT 100k 300k TRIP ADJUST + INPUT 2 LT1004 1.2V 100Ω 10k 2N3904 + 100µF 200pF TRW PC-550-32 ALL GATES 74C02 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1011/LT1011A Voltage Comparators Improved LT111A, 0.5mV VOS(MAX), 25nA IB(MAX), 3nA IOS(MAX), 250ns tPD(MAX) LT1020 Micropower Regulator and Comparator 40µA ISUPPLY, 125mA IOUT, 2.5V Reference Voltage LTC1040 Dual Micropower Comparator 1.5µW (1Sample/Second), 0.5mV VOS(MAX), Rail-to-Rail Input LT111A Voltage Comparator 1mV VOS(MAX), 5µA IOS(MAX), 250ns tPD(MAX) LT1120/LT1120A Micropower Regulator with Comparator and Shutdown 20µA ISUPPLY, 125mA IOUT, 2.5V Reference Voltage LT119/LT319A Dual Comparators 0.5mV VOS(MAX), 25mA IOUT, 80ns tPD LT1671 Single Supply Ground Sensing Comparator 450µA ISUPPLY, 60ns tPD, 0.8mV VOS 12 Linear Technology Corporation 10178fb LT/TP 0501 1.5K REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION 1989