LM111JAN NSC | Alldatasheet
Document overview
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Technical content
Features
■ Operates from single 5V supply ■ Input current: 200 nA max. over temperature ■ Offset current: 20 nA max. over temperature ■ Differential input voltage range: ±30V ■ Power consumption: 135 mW at ±15V ■ Power supply voltage, single 5V to ±15V ■ Offset voltage null capability ■ Strobe capability
Ordering Information
NS PART NUMBER JAN PART NUMBER NS PACKAGE NUMBER PACKAGE DESCRIPTION JL111BCA JM38510/10304BCA J14A 14LD CERDIP JL111BGA JM38510/10304BGA H08C 8LD TO-99 Metal Can JL111BHA JM38510/10304BHA W10A 10LD CERPACK JL111BPA JM38510/10304BPA J08A 8LD CERDIP JL111SGA JM38510/10304SGA H08C 8LD TO-99 Metal Can JL111SHA JM38510/10304SHA W10A 10LD CERPACK JL111SPA JM38510/10304SPA J08A 8LD CERDIP JL111SZA JM38510/10304SZA WG10A 10LD Ceramic SOIC © 2008 National Semiconductor Corporation 201420 www.national.com LM111JAN Voltage Comparator
Note: Pin 4 connected to case Top View See NS Package Number H08C Dual-In-Line Package 20142034 Top View See NS Package Number J08A Dual-In-Line Package 20142035 Top View See NS Package Number J14A 20142033 See NS Package Number W10A, WG10A www.national.com 2 LM111JAN
(Note Pin connections shown on schematic diagram are for H08 package. ) 20142005 Note 1: Pin connections shown on schematic diagram are for H08 package. 3 www.national.com LM111JAN
Absolute Maximum Ratings (Note 2) Positive Supply Voltage +30.0V Negative Supply Voltage -30.0V Total Supply Voltage 36V Output to Negative Supply Voltage 50V GND to Negative Supply Voltage 30V Differential Input Voltage ±30V Sink Current 50mA Input Voltage (Note 3) ±15V Power Dissipation (Note 4)
8 LD CERDIP 400mW @ 25°C
8 LD Metal Can 330mW @ 25°C
10 LD CERPACK 330mW @ 25°C
10 LD Ceramic SOIC 330mW @ 25°C
14 LD CERDIP 400mW @ 25°C
Output Short Circuit Duration 10 seconds Maximum Strobe Current 10mA Operating Temperature Range -55°C ≤ TA ≤ 125°C Thermal Resistance θJA 8 LD CERDIP (Still Air @ 0.5W) 120°C/W 8 LD CERDIP (500LF/Min Air flow @ 0.5W) 76°C/W 8 LD Metal Can (Still Air @ 0.5W) 150°C/W 8 LD Metal Can (500LF/Min Air flow @ 0.5W) 92°C/W 10 Ceramic SOIC (Still Air @ 0.5W) 231°C/W 10 Ceramic SOIC (500LF/Min Air flow @ 0.5W) 153°C/W 10 CERPACK (Still Air @ 0.5W) 231°C/W 10 CERPACK (500LF/Min Air flow @ 0.5W) 153°C/W 14 LD CERDIP (Still Air @ 0.5W) 120°C/W 14 LD CERDIP (500LF/Min Air flow @ 0.5W) 65°C/W θJC
8 LD CERDIP 35°C/W
8 LD Metal Can Pkg 40°C/W
10 LD Ceramic SOIC 60°C/W
10 LD CERPACK 60°C/W
14 LD CERDIP 35°C/W
Storage Temperature Range -65°C ≤ TA ≤ 150°C Maximum Junction Temperature 175°C Lead Temperature (Soldering, 60 seconds) 300°C Voltage at Strobe Pin V+ -5V Package Weight (Typical)
8 LD Metal Can 965mg
8 LD CERDIP 1100mg
10 LD CERPACK 250mg
10 LD Ceramic SOIC 225mg
14 LD CERDIP TBD
ESD Rating (Note 5) 300V www.national.com 4 LM111JAN
Recommended Operating Conditions Supply Voltage VCC = ±15VDC Operating Temperature Range -55°C ≤ TA ≤ 125°C Quality Conformance Inspection Mil-Std-883, Method 5005 — Group A Subgroup Description Temperature (°C)
1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125 8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55
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The following conditions apply, unless otherwise specified. DC: V CC = ±15V, VCM = 0 Symbol Parameter Conditions Notes Min Max Unit Sub- groups VIO Input Offset Voltage VI = 0V, RS = 50Ω -3.0 +3.0 mV 1 -4.0 +4.0 mV 2, 3 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50Ω -3.0 +3.0 mV 1 -4.0 +4.0 mV 2, 3 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50Ω -3.0 +3.0 mV 1 -4.0 +4.0 mV 2, 3 +VCC = +2.5V, -VCC = -2.5V, VI = 0V, RS = 50Ω -3.0 +3.0 mV 1 -4.0 +4.0 mV 2, 3 VIO R Raised Input Offset Voltage VI = 0V, RS = 50Ω (Note 10) -3.0 +3.0 mV 1 -4.5 +4.5 mV 2, 3 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50Ω (Note 10) -3.0 +3.0 mV 1 -4.5 +4.5 mV 2, 3 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50Ω (Note 10) -3.0 +3.0 mV 1 -4.5 +4.5 mV 2, 3 IIO Input Offset Current VI = 0V, RS = 50KΩ -10 +10 nA 1, 2 -20 +20 nA 3 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50KΩ -10 +10 nA 1, 2 -20 +20 nA 3 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50KΩ -10 +10 nA 1, 2 -20 +20 nA 3 IIOR Raised Input Offset Current VI = 0V, RS = 50KΩ (Note 10) -25 +25 nA 1, 2 -50 +50 nA 3 ±IIB Input Bias Current VI = 0V, RS = 50KΩ -100 0.1 nA 1, 2 -150 0.1 nA 3 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50KΩ -150 0.1 nA 1, 2 -200 0.1 nA 3 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50KΩ -150 0.1 nA 1, 2 -200 0.1 nA 3 VOSt Collector Output Voltage (Strobe) +VI = Gnd, -VI = 15V, ISt = -3mA, RS = 50Ω (Note 7) 14 V 1, 2, 3 CMRR Common Mode Rejection -28V ≤ -VCC ≤ -0.5V, RS=50Ω, 2V ≤ +VCC ≤ 29.5V, RS = 50Ω, -14.5V ≤ VCM ≤ 13V,RS = 50Ω 80 dB 1, 2, 3 www.national.com 6 LM111JAN
Symbol Parameter Conditions Notes Min Max Unit Sub- groups VOL Low Level Output Voltage +VCC = 4.5V, -VCC = Gnd, IO = 8mA, ±VI = 0.5V, VID = -6mV (Note 9) 0.4 V 1, 2, 3 +VCC = 4.5V, -VCC = Gnd, IO = 8mA, ±VI = 3V, VID = -6mV (Note 9) 0.4 V 1, 2, 3 IO = 50mA, ±VI = 13V, VID = -5mV (Note 9) 1.5 V 1, 2, 3 IO = 50mA, ±VI = -14V, VID = -5mV (Note 9) 1.5 V 1, 2, 3 ICEX Output Leakage Current +VCC = 18V, -VCC = -18V, VO = 32V -1.0 10 nA 1 -1.0 500 nA 2 IIL Input Leakage Current +VCC = 18V, -VCC = -18V, +VCC = 18V, -VCC = -18V, +ICC Power Supply Current 6.0 mA 1, 2 7.0 mA 3 -ICC Power Supply Current -5.0 mA 1, 2 -6.0 mA 3 Δ VIO / Δ T Temperature Coefficient Input Offset Voltage 25°C ≤ T ≤ 125°C (Note 8) -25 25 uV/°C 2 -55°C ≤ T ≤ 25°C (Note 8) -25 25 uV/°C 3 Δ IIO / Δ T Temperature Coefficient Input Offset Current 25°C ≤ T ≤ 125°C (Note 8) -100 100 pA/°C 2 -55°C ≤ T ≤ 25°C (Note 8) -200 200 pA/°C 3 IOS Short Circuit Current VO = 5V, t ≤ 10mS, -VI = 0.1V, +VI = 0V 200 mA 1 150 mA 2 250 mA 3 +VIO adj. Input Offset Voltage (Adjustment) VO = 0V, VI = 0V, RS = 50Ω 5.0 mV 1 -VIO adj. Input Offset Voltage (Adjustment) VO = 0V, VI = 0V, RS = 50Ω -5.0 mV 1 ±AVE Voltage Gain (Emitter) RL = 600Ω (Note 6) 10 V/mV 4 (Note 6) 8.0 V/mV 5, 6 AC Parameters The following conditions apply, unless otherwise specified. AC: V CC = ±15V, VCM = 0 Symbol Parameter Conditions Notes Min Max Unit Sub- groups tRLHC Response Time (Collector Output) VOD(Overdrive) = -5mV, CL = 50pF, VI = -100mV 300 nS 7, 8B 640 nS 8A tRHLC Response Time (Collector Output) VOD(Overdrive) = 5mV, CL = 50pF, VI = 100mV 300 nS 7, 8B 500 nS 8A 7 www.national.com LM111JAN
The following conditions apply, unless otherwise specified. DC: V CC = ±15V, VCM = 0 Delta calculations performed on JANS devices at group B , subgroup 5. Symbol Parameter Conditions Notes Min Max Unit Sub- groups VIO Input Offset Voltage VI = 0V, RS = 50Ω -0.5 0.5 mV 1 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50Ω -0.5 0.5 mV 1 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50Ω -0.5 0.5 mV 1 ±IIB Input Bias Current VI = 0V, RS = 50KΩ -12.5 12.5 nA 1 +VCC = 29.5V, -VCC = -0.5V, VI = 0V, VCM = -14.5V, RS = 50KΩ -12.5 12.5 nA 1 +VCC = 2V, -VCC = -28V, VI = 0V, VCM = +13V, RS = 50KΩ -12.5 12.5 nA 1 ICEX Output Leakage Current +VCC = 18V, -VCC = -18V, VO = 32V -5.0 5.0 nA 1 Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 3: This rating applies for ±15V supplies. The positive input voltage limit is 30 V above the negative supply. The negative input voltage limit is equal to the negative supply voltage or 30V below the positive supply, whichever is less. Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/ θJA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 5: Human body model, 1.5 kΩ in series with 100 pF. Note 6: Datalog reading in K=V/mV. Note 7: IST = −2mA at −55°C Note 8: Calculated parameter. Note 9: VID is voltage difference between inputs. Note 10: Subscript (R) indicates tests which are performed with input stage current raised by connecting BAL and BAL/STB terminals to +VCC. www.national.com 8 LM111JAN
LM111 Typical Performance Characteristics Input Bias Current 20142043 Input Bias Current 20142044 Input Bias Current 20142045 Input Bias Current 20142046 Input Bias Current 20142047 Input Bias Current 20142048 9 www.national.com LM111JAN
Output Limiting Characteristics 20142054 www.national.com 10 LM111JAN
CIRCUIT TECHNIQUES FOR AVOIDING OSCILLATIONS IN COMPARATOR APPLICATIONS When a high-speed comparator such as the LM111 is used with fast input signals and low source impedances, the output response will normally be fast and stable, assuming that the power supplies have been bypassed (with 0.1 μF disc capac- itors), and that the output signal is routed well away from the inputs (pins 2 and 3) and also away from pins 5 and 6. However, when the input signal is a voltage ramp or a slow sine wave, or if the signal source impedance is high (1 kΩ to 100 kΩ), the comparator may burst into oscillation near the crossing-point. This is due to the high gain and wide band- width of comparators such as the LM111. To avoid oscillation or instability in such a usage, several precautions are recom- mended, as shown in Figure 1 below. 1. The trim pins (pins 5 and 6) act as unwanted auxiliary inputs. If these pins are not connected to a trim-pot, they should be shorted together. If they are connected to a trim-pot, a 0.01 μF capacitor C1 between pins 5 and 6 will minimize the susceptibility to AC coupling. A smaller capacitor is used if pin 5 is used for positive feedback as in Figure 1. 2. Certain sources will produce a cleaner comparator output waveform if a 100 pF to 1000 pF capacitor C2 is connected directly across the input pins. 3. When the signal source is applied through a resistive network, RS, it is usually advantageous to choose an RS ′ of substantially the same value, both for DC and for dynamic (AC) considerations. Carbon, tin-oxide, and metal-film resistors have all been used successfully in comparator input circuitry. Inductive wire wound resistors are not suitable. 4. When comparator circuits use input resistors (e.g. summing resistors), their value and placement are particularly important. In all cases the body of the resistor should be close to the device or socket. In other words there should be very little lead length or printed-circuit foil run between comparator and resistor to radiate or pick up signals. The same applies to capacitors, pots, etc. For example, if RS=10 kΩ, as little as 5 inches of lead between the resistors and the input pins can result in oscillations that are very hard to damp. Twisting these input leads tightly is the only (second best) alternative to placing resistors close to the comparator. 5. Since feedback to almost any pin of a comparator can result in oscillation, the printed-circuit layout should be engineered thoughtfully. Preferably there should be a ground plane under the LM111 circuitry, for example, one side of a double-layer circuit card. Ground foil (or, positive supply or negative supply foil) should extend between the output and the inputs, to act as a guard. The foil connections for the inputs should be as small and compact as possible, and should be essentially surrounded by ground foil on all sides, to guard against 11 www.national.com LM111JAN
- The power supply bypass capacitors should be located
- It is a standard procedure to use hysteresis (positive
positive input will cause about 3 mV of hysteresis. the notes in paragraph 7 below.
- When both inputs of the LM111 are connected to active
- These application notes apply specifically to the LM111
exception that not all comparators have trim pins). FIGURE 1. Improved Positive Feedback
Typical Applications (Note 13) Offset Balancing 20142036 Strobing 20142037 Note: Do Not Ground Strobe Pin. Output is turned off when current is pulled from Strobe Pin. Increasing Input Stage Current (Note Increases typical common mode slew from 7.0V/μs to 18V/μs. ) 20142038 Note 11: Increases typical common mode slew from 7.0V/μs to 18V/μs. Detector for Magnetic Transducer 20142039 Digital Transmission Isolator 20142040 Relay Driver with Strobe 20142041 *Absorbs inductive kickback of relay and protects IC from severe voltage tran- sients on V++ line. Note: Do Not Ground Strobe Pin. www.national.com 14 LM111JAN
Strobing off Both Input and Output Stages (Note Typical input current is 50 pA with inputs strobed off. ) 20142042 Note: Do Not Ground Strobe Pin. Note 12: Typical input current is 50 pA with inputs strobed off. Note 13: Pin connections shown on schematic diagram and typical applications are for H08 metal can package. Positive Peak Detector 20142023 *Solid tantalum Zero Crossing Detector Driving MOS Logic 20142024 Typical Applications (Pin numbers refer to H08 package) Zero Crossing Detector Driving MOS Switch 20142013 100 kHz Free Running Multivibrator 20142014 *TTL or DTL fanout of two 15 www.national.com LM111JAN
10 Hz to 10 kHz Voltage Controlled Oscillator
*Adjust for symmetrical square wave time when VIN = 5 mV †Minimum capacitance 20 pF Maximum frequency 50 kHz Driving Ground-Referred Load 20142016 *Input polarity is reversed when using pin 1 as output. Using Clamp Diodes to Improve Response 20142017 TTL Interface with High Level Logic 20142018 *Values shown are for a 0 to 30V logic swing and a 15V threshold. †May be added to control speed and reduce susceptibility to noise spikes. www.national.com 16 LM111JAN
Comparator and Solenoid Driver 20142020 Precision Squarer 20142021 *Solid tantalum †Adjust to set clamp level Low Voltage Adjustable Reference Supply 20142022 17 www.national.com LM111JAN
*Solid tantalum Positive Peak Detector 20142023 *Solid tantalum Zero Crossing Detector Driving MOS Logic 20142024 Negative Peak Detector 20142025 *Solid tantalum Precision Photodiode Comparator 20142026 *R2 sets the comparison level. At comparison, the photodiode has less than 5 mV across it, decreasing leakages by an order of magnitude. www.national.com 18 LM111JAN
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Released Revision Section Originator Changes 05/09/05 A New Release, Corporate format L. Lytle 1 MDS data sheets converted into one Corp. data sheet format. MJLM111–X Rev 0D3 will be archived. 21 www.national.com LM111JAN
Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Cavity Dual-In-Line Package (J) www.national.com 22 LM111JAN
Dual-In-Line Package (J) Cerpack Package (W) 23 www.national.com LM111JAN
Cerpack Gull Wing Package (WG) www.national.com 24 LM111JAN
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LM111JAN Voltage Comparator For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Design Support Amplifiers www.national.com/amplifiers WEBENCH www.national.com/webench Audio www.national.com/audio Analog University www.national.com/AU Clock Conditioners www.national.com/timing App Notes www.national.com/appnotes Data Converters www.national.com/adc Distributors www.national.com/contacts Displays www.national.com/displays Green Compliance www.national.com/quality/green Ethernet www.national.com/ethernet Packaging www.national.com/packaging Interface www.national.com/interface Quality and Reliability www.national.com/quality LVDS www.national.com/lvds Reference Designs www.national.com/refdesigns Power Management www.national.com/power Feedback www.national.com/feedback Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www.national.com/led PowerWise www.national.com/powerwise Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors Wireless (PLL/VCO) www.national.com/wireless THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL’S PRODUCT WARRANTY. EXCEPT WHERE MANDATED BY GOVERNMENT REQUIREMENTS, TESTING OF ALL PARAMETERS OF EACH PRODUCT IS NOT NECESSARILY PERFORMED. NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN. BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL COMPONENTS. PRIOR TO USING OR DISTRIBUTING ANY PRODUCTS THAT INCLUDE NATIONAL COMPONENTS, BUYERS SHOULD PROVIDE ADEQUATE DESIGN, TESTING AND OPERATING SAFEGUARDS. EXCEPT AS PROVIDED IN NATIONAL’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, NATIONAL ASSUMES NO LIABILITY WHATSOEVER, AND NATIONAL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF NATIONAL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. Copyright© 2008 National Semiconductor Corporation For the most current product information visit us at www.national.com National Semiconductor Americas Technical Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Technical Support Center Email: europe.support@nsc.com German Tel: +49 (0) 180 5010 771 English Tel: +44 (0) 870 850 4288 National Semiconductor Asia Pacific Technical Support Center Email: ap.support@nsc.com National Semiconductor Japan Technical Support Center Email: jpn.feedback@nsc.com www.national.com