LT1017CH

LT1017/LT1018 Micropower Dual Comparator FEATURES n n n n n n n n DESCRIPTION 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. 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. The LT1017/LT1018 are pin compatible with older dual comparators such as 393 type devices. 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) Available in 8-Lead PDIP 8-Lead Plastic S0, and , 16-Lead Plastic SO Packages APPLICATIONS n n n Power Supply Monitors Relay Driving Oscillators L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 1.5V Powered Refrigerator Alarm V+ 1.5V Supply Current 160 140 SUPPLY CURRENT (μA) 120 100 80 60 40 20 0 1 2 LT1017 OUTPUTS LOW LT1018 OUTPUTS HIGH LT1018 OUTPUTS LOW 665k 1% 3 665k 1% 52.3k 1% + – 8 1 OUTPUT HIGH FOR 0°C ≤ T ≤ 5°C 1/2 LT1017 2 5 + 1/2 LT1017 7 YSI 44011 258.3k AT 5°C 333.1k AT 0°C LT1017 OUTPUTS HIGH 10 20 40 4 TOTAL SUPPLY VOLTAGE (V) 100 1017/18 TA02 6 280k 1% – 4 1017/18 TA01 10178ff 1 LT1017/LT1018 ABSOLUTE MAXIMUM RATINGS (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/LT1018I ............................... –40°C to 85°C Lead Temperature (Soldering, 10 sec) ................. 300°C PACKAGE/ORDER INFORMATION TOP VIEW +IN A 1 V– 2 + B – – +A 8 7 6 5 –IN A OUT A V+ OUT B OUTPUT A 1 –IN A 2 +IN A 3 V – TOP VIEW 8 – +A – B+ N8 PACKAGE 8-LEAD PDIP 7 6 5 V+ OUTPUT B –IN B +IN B +IN B 3 –IN B 4 4 S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 190°C/W TJMAX = 150°C, θJA = 140°C/W ORDER PART NUMBER LT1017CS8 LT1017IS8 LT1018CS8 LT1018IS8 TOP VIEW V+ 8 OUTPUT A 1 –IN A 2 – +IN A 3 A ++ B S8 PART MARKING 1017 1017I 1018 1018I ORDER PART NUMBER LT1017CN8 LT1017IN8 LT1018CN8 TOP VIEW NC 1 PART MARKING 16 NC 15 NC 14 V+ – +A 13 OUT B – 12 –IN B B+ 11 +IN B 10 NC 9 NC 7 OUTPUT B – 6 –IN B NC 2 OUT A 3 –IN A 4 +IN A 5 V– 6 NC 7 NC 8 5 +IN B 4 V– H PACKAGE 8-LEAD TO-5 METAL CAN TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W OBSOLETE PACKAGE Consider the 8-Lead Plastic Dip Package For Alternate Source SW PACKAGE 16-LEAD PLASTIC SO TJMAX = 150°C, θJA = 130°C/W ORDER PART NUMBER LT1017MH LT1017CH LT1018MH LT1018CH PART MARKING ORDER PART NUMBER LT1017CSW LT1018CSW PART MARKING Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. 10178ff 2 LT1017/LT1018 ELECTRICAL CHARACTERISTICS PARAMETER Offset Voltage (Note 2) Bias Current CONDITIONS ± 0.75V ≤ VS ≤ ±20V 25°C ● The l denotes the specifications which apply over the full 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. MIN LT1017 TYP 0.4 0.5 5 7 10 0.4 0.5 105 100 82 96 95 82 110 105 100 100 94 30 25 10 30 25 25 25 15 25 115 115 100 110 105 115 115 110 65 50 20 75 70 75 35 20 40 5 35 60 120 350 5 40 75 150 600 25 60 100 300 40 175 45 190 50 20 60 120 200 600 20 75 150 300 900 50 100 200 600 80 250 90 300 100 300 MAX 1 1.4 5 15 25 60 2 3 20 105 100 95 96 95 86 110 105 100 100 94 35 25 10 75 50 50 70 45 40 MIN LT1018 TYP 0.4 0.5 0.7 15 18 1 1.6 115 115 110 110 105 100 125 120 110 70 50 30 250 220 200 140 120 110 5 35 60 120 350 8 35 70 150 500 10 60 110 300 900 35 175 45 190 50 15 60 120 250 700 20 70 150 300 900 40 100 200 400 80 250 90 300 100 300 MAX 1 1.4 1.5 75 100 110 8 12 20 UNITS mV mV mV nA nA nA nA nA nA dB dB dB dB dB dB dB dB dB dB dB mA mA mA μA μA μA μA μA μA mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV 125°C ±0.75V ≤ VS ≤ ±20V 25°C ● 125°C Offset Current ±0.75V ≤ VS ≤ ±20V 25°C ● 125°C Common Mode Rejection Ratio VS = ±20V, –20V ≤ VCM ≤ 19.1V 25°C ● 125°C Power Supply Rejection Ratio ±0.75V ≤ VS ≤ ±20V 25°C ● 125°C Gain No Load, VOUT = ± 19.9V (Note 3) 25°C ● 125°C RL = 4k, VOUT = ± 19V Output Sink Current V + = 4.5V, V– = 0V Overdrive > 30mV V + = 40V, V – = 0V VIN = 5mV, VOUT = 0.4V V + = 1.2V, V – = 0V VIN = 5mV, VOUT = 0.4V Negative Output Saturation IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA IOUT = 0mA = 0.1mA = 1mA = 10mA = 30mA Positive Output Saturation IOUT = 0μA = 10μA = 0μA = 10μA = 0μA = 10μA V + = 4.5V, V – = 0V VIN = –10mV 25°C ● 25°C ● 125°C Output Source Current 25°C ● 125°C 25°C ● 125°C 25°C 25°C 25°C 25°C 25°C ● ● ● ● ● V + = 4.5V, V – = 0V VIN = –10mV V + = 4.5V, V – = 0V VIN = –10mV 125°C 125°C 125°C 125°C 125°C 25°C 25°C ● ● 125°C 125°C 10178ff 3 LT1017/LT1018 ELECTRICAL CHARACTERISTICS PARAMETER Leakage Current CONDITIONS VS = 5V, VOUT = 40V VIN ≥ 100mV VS = 5V 25°C ● The l denotes the specifications which apply over the full 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. MIN LT1017 TYP 0.5 0.6 30 40 40 55 MAX 3 3 5 60 80 80 90 100 100 1.15 1.15 1.15 MIN LT1018 TYP 1 1.8 110 110 130 140 MAX 8 10 15 250 250 300 250 270 300 1.2 1.2 1.2 UNITS μA μA μA μA μA μA μA μA μA V V V 125°C Supply Current 25°C ● 125°C VS = 40V 25°C ● 125°C Minimum Operating Voltage IOUT = 1mA 25°C ● 125°C Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Offset voltage is guaranteed over a common mode voltage range of V – ≤ VIN ≤ (V+ – 0.9V). Note 3: No load gain is guaranteed but not tested (LT1017 only). 10178ff 4 LT1017/LT1018 TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current 100 3.0 2.5 2.0 1.5 1.0 LT1018 0.5 LT1017 0 –50 –25 50 25 75 0 TEMPERATURE (°C) 100 125 0 –20 –0.2 –0.1 0.1 0.2 0 DIFFERENTIAL INPUT VOLTAGE (V) 20 BIAS CURRENT (nA) 15 Input Offset Current 20 Bias Current vs Differential Input LT1018 + IB LT1018 – IB LT1018 VCM = V– 10 LT1018 VCM = V+ – 1V LT1017 VCM = V– INPUT OFFSET CURRENT (nA) INPUT BIAS CURRENT (nA) 10 LT1017 + IB 5 LT1017 – IB IBIAS REVERSES POLARITY LT1017 VCM = V+ – 1V 1 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G01 1017/18 G02 1017/18 G03 Input Bias Current with Inputs Driven Below the Supply 100 V+ –0.4 –0.6 COMMON MODE VOLTAGE (V) Common Mode Limits 160 140 SUPPLY CURRENT (μA) VCM HIGH 120 100 80 60 40 20 Supply Current VSUPPLY = 20V LT1018 OUTPUTS LOW LT1018 OUTPUTS HIGH INPUT BIAS CURRENT (μA) 10 –0.8 –1.0 V– 1 125°C 85°C 25°C VCM LOW –0.2 –0.4 –0.6 ΔVOS = 0.5mV VOLTAGES ARE REFERRED TO SUPPLIES 0 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G05 LT1017 OUTPUTS LOW LT1017 OUTPUTS HIGH 0 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G06 0.1 0.01 0.2 V– –0.2 –0.4 –0.6 –0.8 COMMON MODE VOLTAGE (V) –1.0 –0.8 –50 –25 0 –50 –25 1017/18 G04 Positive Supply Current 10000 POSITIVE SUPPLY CURRENT (μA) 1000 NPN Output Saturation Voltage 100 OUTPUT CURRENT LIMIT (mA) Output Sinking Current Limit OUTPUT SHORTED TO V+ SATURATION VOLTAGE (mV) 80 LT1018 60 LT1017 1000 LT1018 LT1017 100 125°C 25°C –55°C 40 100 20 10 0.1 1 10 OUTPUT SINK CURRENT (mA) 100 1017/18 G07 10 0.001 0 0.01 0.1 1 10 SINK CURRENT (mA) 100 1017/18 G08 1 10 TOTAL SUPPLY VOLTAGE (V) 100 1017/18 G09 10178ff 5 LT1017/LT1018 TYPICAL PERFORMANCE CHARACTERISTICS Output Sinking Current Limit 100 OUTPUT SHORTED TO V+ TOTAL SWITCHING TIME (μs) LT1018 VS = 5V LT1017 VS = 5V 100 Total Switching Time RL = 47k (LT1018) RL = 200k (LT1017) VOUT = 90% VFINAL VOVERDRIVE = 5mV 100 LT1017 FALL DELAY TIME (μs) Output Delay LT1017 RISE LT1017 FALL OUTPUT CURRENT LIMIT (mA) 80 60 LT1018 VS = 40V LT1017 VS = 40V 10 LT1018 FALL LT1018 RISE LT1017 RISE 10 40 LT1018 RISE LT1018 FALL 20 0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G10 1 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 1017/18 G11 1 VOUT = 10% VFINAL 0.1 1 10 OVERDRIVE (mV) 100 1017/18 G12 Transition Time 100 10% VFINAL ≤ VOUT ≤ 90% VFINAL VOVERDRIVE = 10mV TRANSITION TIME (μs) 10 Positive Transition Time LT1017 Response Time TRANSITION TIME (μs) LT1017 VSUP = 2V LT1017 VSUP = 40V LT1018 VSUP = 40V LT1018 VSUP = 2V VIN RL = 10k RL = 100k VOUT RL = ∞ LT1017 RISE 10 LT1017 FALL/ LT1018 RISE LT1018 FALL 1 1 0 10 20 30 TOTAL SUPPLY VOLTAGE (V) 40 1017/18 G13 0.1 1k 10% VFINAL ≤ VOUT ≤ 90% VFINAL VOVERDRIVE = 10mV 100k 10k PULL-UP RESISTOR (Ω) 1M 1017/18 G14 V+ = 5V 5μs/DIV V– = 0V VIN = 100mV STEP VOVERDRIVE = 10mV 1017/18 G15 LT1017 Response Time LT1018 Response Time LT1018 Response Time VIN VIN RL = 10k RL = 100k RL = ∞ VIN VOUT VOUT VOUT 5V 0V V+ = 5V 5μs/DIV V– = 0V VIN = –100mV STEP VOVERDRIVE = –10mV 1017/18 G17 V+ = 5V 5μs/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 10178ff 6 LT1017/LT1018 TYPICAL APPLICATIONS Driving Relays 12V 5V VIN 2 Increasing Positive Output Current V+ Delay On Power Up V+ + 100k 1μF 3 2N3904 1 1N4148 1017/18 TA04 – + 8 LT1017 1 VIN 3 + – 8 + – 8 1 3 2 4 1017/18 TA03 LT1017/ LT1018 4 V– VOUT 2 LT1017/ LT1018 4 1k 20k 1017/18 TA05 LT1018 Op Amp, AV = 100 5V 10k VIN 3 + – 8 LT1018 1 R1* VOUT RL 2 4 –5V 1M 10k 15Ω 0.22μF 1017/18 TA06 RL = 100k BANDWIDTH = 30Hz –SLEW = 320V/ms +SLEW = 0.93V/ms *WITH R1 = 1k BANDWIDTH ≅ 200Hz LT1017 Op Amp, AV = 100 5V 10k VIN 3 + – 8 LT1017 1 VOUT RL ≥ 200k 2 4 –5V 1M 10k 10Ω 3.3μF 1017/18 TA07 –SLEW = 23.5V/ms +SLEW = 0.017V/ms BANDWIDTH = 0.3Hz AT RL = 220k 10178ff 7 LT1017/LT1018 TYPICAL APPLICATIONS Negative Voltage Regulator 510k LT1004 2.5V 2 – + 8 150pF 1 510k VOUT –5V 50mA 3 LT1017/ LT1018 4 220μF 100k 1k 220pF –VIN –5.2V TO –40V 2-Wire Comparator 4.7k VSUPPLY VIN 3 + – 8 LT1018 1 1N4148 ×2 OUTPUT 3V ≤ VSUPPLY ≤ 40V LT1018 ONLY 2 4 0.01μF VIN 3 + – 8 1 1N4148 ×4 OUTPUT 3V ≤ VSUPPLY ≤ 40V 1017/18 TA09 2 LT1017/ LT1018 4 8 + 1017/18 TA08 4.7k VSUPPLY 10178ff LT1017/LT1018 TYPICAL APPLICATIONS 5V Power Supply Monitor V+ 3k 36.5k 1% 2.5k 1% 5 + – 8 7 OUTPUT HIGH FOR 4.5V ≤ VIN ≤ 5.5V 1/2 LT1017 6 3 LT1034 1.235V 11.2k 1% + 1/2 LT1017 1 2 – 4 OUTPUT VALID FOR V+ ≥ 1.1V 1017/18 TA10 Precise Tri-Wave Generator TRIANGLE WAVE OUTPUT 0.5V TO 2.5V 5V 22k 0.047μF 3k 2N3904 LT1009 2.5V 200k + 3 – 2 8 1 22k 3k 1/2 LT1013 4 3 + – 8 1 SQUARE WAVE OUTPUT 1/2 LT1018 2 10pF 100k 5 + 1/2 LT1018 7 6 47k – 4 1017/18 TA11 10178ff 9 LT1017/LT1018 TYPICAL APPLICATIONS Power Supply Monitor 160k VIN 330Ω 1N4148 100k 2 + 1μF 3 LT1004 1.2V 390k – + 8 LT1018 4 1 0.01μF 1017/18 TA12 1N4148 120k 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 1.5V 22μF 2M 1M 2 – 1/2 LT1018 1 100k 220pF 6 3 + 1M 1N4148 5 – + 8 7 1/2 LT1018 4 + L1 4.7mH HP5082-2810 OUTPUT 5V 110k 0.0022μF 100k 1% FILM 120k 1% FILM 56.2k 1% FILM 120k LT1004 1.2V 365k 1% FILM 1N4148 + L1: RL1123-4.7-RENCO, INC 80% EFFICIENCY AT 2mA OUTPUT 47μF 1017/18 TA13 10178ff 10 LT1017/LT1018 TYPICAL APPLICATIONS Regulated Step-Up Converter 5V 400mH** 1N4148 100k 2 0.1μF 200k LT1004 1.2V 3 – + 8 1 1N4148 1/2 LT1018 4 + R1* 910k OUTPUT 10V 2mA 100μF 5 + 1/2 LT1018 7 2000pF 6 – *VOUT = 1.2 1 + R1 R2 **DALE TE-5/Q3/400mH () R2* 120k 1017/18 TA14 Low Power* V-to-F Converter 3M 0.001μF POLYSTYRENE OUTPUT 0kHz TO 1kHz FULL-SCALE TRIM 910K 100k 1% 2N3904 1N4148 2 0.1μF 3 47k 9V 1N4148 INPUT 0V TO 1V – + 8 1 1N4148 220k 2.2μF 4 220pF 1N4148 LT1034 1.2V 330k 100k 1N4148 1M 10k 7 *IQ ≅ 350μA – 1/2 LT1018 6 0.1μF 5 1017/18 TA15 + + 1/2 LT1018 10178ff 11 LT1017/LT1018 PACKAGE DESCRIPTION H Package Package 8-Lead TO-5 Metal Can (.200 Inch PCD) 8-Lead TO-5 Can (.200 PCD) (Reference (Reference LTC DWG # 05-08-1320) 05-08-1320) .335 .370 .335 – .370 (8.509 – 9.398) (8.509 9.398) DIA DIA .305 – .335 .335 (7.747 – 8.509) (7.747 8.509) .040 .040 (1.016) (1.016) MAX .050 .050 (1.270) (1.270) MAX GAUGE GAUGE PLANE .165 .185 .165 – .185 (4.191 – 4.699) 4.699) REFERENCE REFERENCE PLANE PLANE .500 – .750 (12.700 – 19.050) 19.050) SEATING SEATING PLANE PLANE .010 – .045* 010 .045* 1.143) (0.254 – 1.143) .016 – .021** 016 .021** (0.406 – 0.533) (0.406 0.533) .027 .045 .027 – .045 (0.686 – 1.143) (0.686 1.143) 45 45° .028 – .034 .034 (0.711 – 0.864) (0.711 0.864) PIN PIN 1 .200 (5.080) (5.080) TYP .110 – .160 .160 (2.794 (2.794 – 4.064) INSULATING INSULATING STANDOFF STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE IS UNCONTROLLED REFERENCE SEATING PLANE AND THE SEATING PLANE .016 .024 .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS FOR SOLDER FINISH, LEAD IS 0204 (0.406 0.610) H8(TO-5) (0.406 – 0.610) H8(TO-5) 0.200 PCD 0204 OBSOLETE PACKAGE OBSOLETE PACKAGE 10178ff 12 LT1017/LT1018 PACKAGE DESCRIPTION N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .400* (10.160) MAX 8 7 6 5 .255 ± .015* (6.477 ± 0.381) 1 .300 – .325 (7.620 – 8.255) 2 3 4 .130 ± .005 (3.302 ± 0.127) .045 – .065 (1.143 – 1.651) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 .065 (1.651) TYP .120 (3.048) .020 MIN (0.508) MIN .018 ± .003 (0.457 ± 0.076) N8 1002 ( 8.255 +0.889 –0.381 ) .100 (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) NOTE: 1. DIMENSIONS ARE 10178ff 13 LT1017/LT1018 PACKAGE DESCRIPTION S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .050 BSC .045 ±.005 8 .189 – .197 (4.801 – 5.004) NOTE 3 7 6 5 .245 MIN .160 ±.005 .228 – .244 (5.791 – 6.197) .150 – .157 (3.810 – 3.988) NOTE 3 .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .016 – .050 (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 0°– 8° TYP 1 2 3 4 .053 – .069 (1.346 – 1.752) .004 – .010 (0.101 – 0.254) INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) .014 – .019 (0.355 – 0.483) TYP .050 (1.270) BSC SO8 0303 10178ff 14 LT1017/LT1018 PACKAGE DESCRIPTION SW Package 16-Lead Plastic Small Outline (Wide .300 Inch) (Reference LTC DWG # 05-08-1620) .030 ±.005 TYP N .050 BSC .045 ±.005 .398 – .413 (10.109 – 10.490) NOTE 4 16 15 14 13 12 11 10 9 N .420 MIN .325 ±.005 NOTE 3 .394 – .419 (10.007 – 10.643) 1 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT 1 .291 – .299 (7.391 – 7.595) NOTE 4 .010 – .029 × 45° (0.254 – 0.737) 0° – 8° TYP 2 3 4 5 6 7 8 .093 – .104 (2.362 – 2.642) .037 – .045 (0.940 – 1.143) .005 (0.127) RAD MIN .009 – .013 (0.229 – 0.330) NOTE: 1. DIMENSIONS IN NOTE 3 .016 – .050 (0.406 – 1.270) .050 (1.270) BSC .014 – .019 (0.356 – 0.482) TYP .004 – .012 (0.102 – 0.305) INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS 4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) S16 (WIDE) 0502 10178ff 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. 15 LT1017/LT1018 TYPICAL APPLICATION Fully Isolated Limit Comparator 5V INTERROGATE PULSE 500μs 2 8 1 3k 2N3906 20k OUTPUT 100k 300k TRIP ADJUST LT1004 1.2V 100Ω 10k 2N3904 100μF TRW PC-550-32 ALL GATES 74C02 1k 2N3906 1μF 4.7k INTERROGATE PULSE OUTPUT PULSE VIN > VTRIP NO OUTPUT PULSE FOR VIN < VTRIP 1/2 LT1018 3 + 4 + INPUT – + 200pF RELATED PARTS PART NUMBER LT1011/LT1011A LT1020 LTC1040 LT1120/LT1120A LT319A LT1671 LT1716 DESCRIPTION Voltage Comparators Micropower Regulator and Comparator Dual Micropower Comparator Micropower Regulator with Comparator and Shutdown Dual Comparators Single Supply Ground Sensing Comparator Micropower, 44V, SOT-23 Ground Sensing Comparator COMMENTS Improved LT111A, 0.5mV VOS(MAX), 25nA IB(MAX), 3nA IOS(MAX), 250ns tPD(MAX) 40μA ISUPPLY, 125mA IOUT, 2.5V Reference Voltage 1.5μW (1Sample/Second), 0.5mV VOS(MAX), Rail-to-Rail Input 20μA ISUPPLY, 125mA IOUT, 2.5V Reference Voltage 0.5mV VOS(MAX), 25mA IOUT, 80ns tPD 450μA ISUPPLY, 60ns tPD, 0.8mV VOS Input Common Mode Range Extends from –5V to 44V from Negative Supply 10178ff 16 Linear Technology Corporation (408) 432-1900 ● FAX: (408) 434-0507 ● LT 0208 REV F • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 www.linear.com © LINEAR TECHNOLOGY CORPORATION 2008