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Amplifier Circuits / Comparators / LM311DT
Datasheets
LM311DT by:
STMicroelectronics
Motorola Mobility LLC
NXP Semiconductors
Philips Semiconductors
STMicroelectronics
Texas Instruments
Not Found

Voltage comparator with strobe

Part Details for LM311DT by STMicroelectronics

Results Overview of LM311DT by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

LM311DT Information

LM311DT by STMicroelectronics is a Comparator.
Comparators are under the broader part category of Amplifier Circuits.

Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.

Price & Stock for LM311DT

Part # Distributor Description Stock Price Buy
DISTI # 08AC2764
Newark Comparator, Voltage, 0 To 70Deg C, Comparator Type:Voltage, No. Of Channels:1Channels, Response T... ime/Propogation Delay:200Ns, Supply Voltage Range:5V To ± 15V, Ic Case/Package:Soic, No. Of Pins:8Pins, Ic Mounting:Surface Mount Rohs Compliant: Yes |Stmicroelectronics LM311DT more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape 1118
  • 1 $0.4800
  • 10 $0.3360
  • 25 $0.3000
  • 50 $0.2800
  • 100 $0.2600
  • 250 $0.2410
  • 500 $0.2300
  • 1,000 $0.2100
$0.2100 / $0.4800 Buy Now
DISTI # 94W8316
Newark Analogue Comparator, Rail To Rail, Voltage, 1, 200 Ns, 5V To 15V, Soic, 8 Rohs Compliant: Yes |Stmic... roelectronics LM311DT more RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 1 Container: Reel 0
  • 2,500 $0.1910
$0.1910 Buy Now
DISTI # 96AC0507
Newark Conditioning & Interfaces Rohs Compliant: Yes |Stmicroelectronics LM311DT RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 2,500 $0.1890
  • 5,000 $0.1870
  • 10,000 $0.1640
  • 15,000 $0.1470
  • 25,000 $0.1300
$0.1300 / $0.1890 Buy Now
DISTI # 497-1569-1-ND
DigiKey IC COMPARATOR 1 GEN PUR 8SOIC Min Qty: 1 Lead time: 8 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 5035
In Stock
  • 1 $0.4800
  • 10 $0.3360
  • 25 $0.3000
  • 100 $0.2604
  • 250 $0.2416
  • 500 $0.2302
  • 1,000 $0.2208
  • 2,500 $0.2109
  • 5,000 $0.2050
  • 7,500 $0.2020
  • 12,500 $0.1987
  • 17,500 $0.1967
  • 25,000 $0.1949
$0.1949 / $0.4800 Buy Now
DISTI # 08AC2764
Avnet Americas Comparator, Voltage, 1 Channels, 5 V to 30 V, ?15 V, 8 Pins, SOIC - Product that comes on tape, but ... is not reeled (Alt: 08AC2764) more RoHS: Compliant Min Qty: 5 Package Multiple: 5 Container: Ammo Pack 349 Partner Stock
  • 1 $0.5000
  • 10 $0.3150
  • 25 $0.2950
  • 50 $0.2740
  • 100 $0.2540
$0.2540 / $0.5000 Buy Now
DISTI # LM311DT
Avnet Americas Comparator, Voltage, 1 Channels, 5 V to 30 V, ?15 V, 8 Pins, SOIC - Tape and Reel (Alt: LM311DT) RoHS: Compliant Min Qty: 10000 Package Multiple: 2500 Lead time: 8 Weeks, 0 Days Container: Reel 0
  • 10,000 $0.0805
  • 15,000 $0.0800
  • 25,000 $0.0785
  • 50,000 $0.0781
  • 100,000 $0.0777
$0.0777 / $0.0805 Buy Now
DISTI # 511-LM311DT
Mouser Electronics Analog Comparators Single GP Voltage RoHS: Compliant 12784
  • 1 $0.4800
  • 10 $0.3360
  • 25 $0.3000
  • 100 $0.2610
  • 250 $0.2310
  • 1,000 $0.2210
  • 2,500 $0.1980
  • 10,000 $0.1960
  • 20,000 $0.1930
$0.1930 / $0.4800 Buy Now
DISTI # E02:0323_00026179
Arrow Electronics Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks Date Code: 2506 Europe - 492500
  • 2,500 $0.1479
$0.1479 Buy Now
DISTI # V36:1790_06548494
Arrow Electronics Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 5000 Package Multiple: 2500 Lead time: 8 Weeks Date Code: 2437 Americas - 177500
  • 5,000 $0.2046
  • 7,500 $0.2016
  • 12,500 $0.1983
  • 17,500 $0.1963
  • 25,000 $0.1945
$0.1945 / $0.2046 Buy Now
DISTI # E54:1762_06543085
Arrow Electronics Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks Europe - 7500
  • 2,500 $0.2105
  • 5,000 $0.2046
  • 7,500 $0.2016
  • 12,500 $0.1983
  • 17,500 $0.1963
  • 25,000 $0.1945
$0.1945 / $0.2105 Buy Now
DISTI # V72:2272_06548494
Arrow Electronics Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Date Code: 2243 Container: Cut Strips Americas - 5114
  • 1 $0.4790
  • 10 $0.3353
  • 25 $0.2994
  • 100 $0.2599
  • 250 $0.2411
  • 500 $0.2297
  • 1,000 $0.2204
  • 2,500 $0.2105
  • 5,000 $0.2046
  • 7,500 $0.2016
  • 12,500 $0.1983
  • 17,500 $0.1963
  • 25,000 $0.1945
$0.1945 / $0.4790 Buy Now
STMicroelectronics Voltage comparator with strobe RoHS: Compliant Min Qty: 1 12784
  • 1 $0.4700
  • 10 $0.3300
  • 25 $0.2900
  • 100 $0.2600
  • 250 $0.2300
$0.2300 / $0.4700 Buy Now
Future Electronics LM311 Series Single 15V 250 nA SMT Low Input Current Voltage Comparator - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks Container: Reel 40000
Reel
  • 2,500 $0.0828
  • 7,500 $0.0806
  • 10,000 $0.0801
  • 25,000 $0.0784
  • 37,500 $0.0767
$0.0767 / $0.0828 Buy Now
Future Electronics LM311 Series Single 15V 250 nA SMT Low Input Current Voltage Comparator - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 12500 Package Multiple: 2500 Lead time: 8 Weeks Container: Reel 0
Reel
  • 2,500 $0.0828
  • 7,500 $0.0806
  • 10,000 $0.0801
  • 25,000 $0.0784
  • 37,500 $0.0767
$0.0767 / $0.0828 Buy Now
Future Electronics LM311 Series Single 15V 250 nA SMT Low Input Current Voltage Comparator - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 12500 Package Multiple: 2500 Lead time: 8 Weeks Container: Reel 0
Reel
  • 2,500 $0.0828
  • 7,500 $0.0806
  • 10,000 $0.0801
  • 25,000 $0.0784
  • 37,500 $0.0767
$0.0767 / $0.0828 Buy Now
DISTI # 87800025
Verical Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 5000 Package Multiple: 2500 Date Code: 2437 Americas - 177500
  • 5,000 $0.1231
  • 7,500 $0.1219
  • 12,500 $0.0763
$0.0763 / $0.1231 Buy Now
DISTI # 76881867
Verical Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 130 Package Multiple: 1 Americas - 9515
  • 132 $0.4150
$0.4150 Buy Now
DISTI # 67207027
Verical Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Americas - 7500
  • 2,500 $0.1302
$0.1302 Buy Now
DISTI # 65030595
Verical Comparator Single ±15V/30V 8-Pin SO N T/R RoHS: Compliant Min Qty: 73 Package Multiple: 1 Date Code: 2243 Americas - 5114
  • 73 $0.1823
  • 100 $0.1569
  • 250 $0.1375
  • 500 $0.1360
  • 1,000 $0.1302
  • 3,000 $0.1243
$0.1243 / $0.1823 Buy Now
Bristol Electronics   7500
RFQ
Bristol Electronics   3491
RFQ
Bristol Electronics   2550
RFQ
Bristol Electronics   223
RFQ
DISTI # LM311DT
TME IC: comparator, universal, Cmp: 1, 200ns, 5÷15V, SMT, SO8, reel,tape Min Qty: 1 14179
  • 1 $0.5990
  • 5 $0.4040
  • 10 $0.3510
  • 50 $0.3100
  • 100 $0.2580
  • 250 $0.2460
  • 500 $0.2260
  • 1,000 $0.1790
  • 2,500 $0.1640
  • 7,500 $0.1590
$0.1590 / $0.5990 Buy Now
ComSIT USA AVAILABLE EU 447
RFQ
ComSIT USA Electronic Component RoHS: Not Compliant Stock DE - 0
Stock ES - 10964
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # SMC-LM311DT
Sensible Micro Corporation OEM Excess 5-7 Days Leadtime, We are an AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 3373
RFQ
DISTI # LM311DT
Avnet Silica Comparator Voltage 1 Channels 5 V to 30 V 15 V 8 Pins SOIC (Alt: LM311DT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 9 Weeks, 0 Days Silica - 35000
Buy Now
DISTI # LM311DT
Chip One Stop Semiconductors RoHS: Compliant pbFree: Yes Min Qty: 5 Lead time: 0 Weeks, 1 Days Container: Cut Tape 9515
  • 5 $0.4150
  • 50 $0.2700
  • 100 $0.2310
  • 200 $0.2300
  • 500 $0.2200
  • 1,000 $0.2110
  • 10,000 $0.2110
  • 20,000 $0.1880
$0.1880 / $0.4150 Buy Now
DISTI # LM311DT
EBV Elektronik Comparator Voltage 1 Channels 5 V to 30 V 15 V 8 Pins SOIC (Alt: LM311DT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 9 Weeks, 0 Days EBV - 922500
Buy Now
LCSC 2mV 100nA Single channel SOP-8 Comparators ROHS 4130
  • 5 $0.1833
  • 50 $0.1515
  • 150 $0.1339
  • 500 $0.1233
  • 2,500 $0.1141
  • 5,000 $0.1092
$0.1092 / $0.1833 Buy Now
Vyrian Amplifiers 136179
RFQ
Win Source Electronics Comparator Single ±15V/30V 8-Pin SO N T/R / IC VOLTAGE COMPARATOR 8-SOIC 20570
  • 465 $0.1076
  • 995 $0.1007
  • 1,545 $0.0972
  • 2,215 $0.0903
  • 2,885 $0.0868
  • 3,600 $0.0834
$0.0834 / $0.1076 Buy Now

Part Details for LM311DT

LM311DT CAD Models

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LM311DT Part Data Attributes

Parametric Data
LM311DT STMicroelectronics
Buy Now Datasheet
Compare Parts:
LM311DT STMicroelectronics Voltage comparator with strobe
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Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description ROHS COMPLIANT, MICRO, PLASTIC, SOP-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer STMicroelectronics
Amplifier Type COMPARATOR
Average Bias Current-Max (IIB) 0.3 µA
Bias Current-Max (IIB) @25C 0.25 µA
Input Offset Voltage-Max 10000 µV
JESD-30 Code R-PDSO-G8
JESD-609 Code e3
Length 4.9 mm
Moisture Sensitivity Level 1
Neg Supply Voltage Limit-Max -18 V
Neg Supply Voltage-Nom (Vsup) -15 V
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Type OPEN-COLLECTOR
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR; TUBE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Response Time-Nom 200 ns
Seated Height-Max 1.75 mm
Supply Voltage Limit-Max 18 V
Supply Voltage-Nom (Vsup) 15 V
Surface Mount YES
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

Alternate Parts for LM311DT

This table gives cross-reference parts and alternative options found for LM311DT. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM311DT, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LM311MX Fairchild Semiconductor Corporation Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311DT vs LM311MX
LM311M Rochester Electronics LLC Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311DT vs LM311M
LM311M National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator LM311DT vs LM311M
LM311MX National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator LM311DT vs LM311MX
Part Number Manufacturer Composite Price Description Compare
LM311D NXP Semiconductors Check for Price COMPARATOR, 10000uV OFFSET-MAX, 200ns RESPONSE TIME, PDSO8, 3.90 MM, PLASTIC, MS-012, SOT-96, SO-8 LM311DT vs LM311D
LM311M/NOPB Texas Instruments $1.1060 Precision, high voltage, floating output comparator 8-SOIC 0 to 70 LM311DT vs LM311M/NOPB
LM311MX/NOPB Texas Instruments $0.5207 Precision, high voltage, floating output comparator 8-SOIC 0 to 70 LM311DT vs LM311MX/NOPB
LM311M Texas Instruments Check for Price Precision, high voltage, floating output comparator 8-SOIC 0 to 70 LM311DT vs LM311M
LM311D Motorola Mobility LLC Check for Price COMPARATOR, 10000uV OFFSET-MAX, 200ns RESPONSE TIME, PDSO8, PLASTIC, SO-8 LM311DT vs LM311D
LM311M/NOPB National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, LEAD FREE, SOIC-8, Comparator LM311DT vs LM311M/NOPB
LM311DR2G onsemi $0.1835 Comparator, Single, SOIC-8 Narrow Body, 2500-REEL LM311DT vs LM311DR2G
LM311DRE4 Texas Instruments Check for Price High Speed, 30V, Differential Comparator With Strobes 8-SOIC 0 to 70 LM311DT vs LM311DRE4
LM311BD-T NXP Semiconductors Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 500 ns RESPONSE TIME, PDSO8, PLASTIC, SO-8, Comparator LM311DT vs LM311BD-T
LM311MX/NOPB National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, LEAD FREE, SOIC-8, Comparator LM311DT vs LM311MX/NOPB

LM311DT Related Parts

LM311DT Frequently Asked Questions (FAQ)

  • The maximum voltage that can be applied to the input pins is ±30V, but it's recommended to keep it within the supply voltage range (VCC - 2V to VCC + 0.3V) to ensure proper operation.

  • To prevent oscillation, add a small capacitor (e.g., 10nF) between the output and ground, and a pull-up resistor (e.g., 1kΩ) between the output and VCC. This helps to filter out noise and ensure a stable output.

  • The LM311DT can detect input voltage differences as small as 1mV, but for reliable operation, it's recommended to have at least 5mV to 10mV of input voltage difference.

  • Yes, the LM311DT can be used as a zero-crossing detector. However, it's essential to ensure the input signal is properly biased and the comparator is configured for a valid output. A small hysteresis (e.g., 1mV) can help prevent oscillations.

  • The pull-up resistor value depends on the load current and the desired output voltage. A general rule of thumb is to choose a value between 1kΩ and 10kΩ. For example, if the load current is 1mA, a 1kΩ pull-up resistor would be suitable.