Datasheets
LM311MX by:

Precision, high voltage, floating output comparator 8-SOIC 0 to 70

Part Details for LM311MX by Texas Instruments

Results Overview of LM311MX by Texas Instruments

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LM311MX Information

LM311MX by Texas Instruments 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 LM311MX

Part # Distributor Description Stock Price Buy
DISTI # 296-LM311MXCT-ND
DigiKey IC COMPARATOR 1 GEN PUR 8SOIC Min Qty: 1 Lead time: 18 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 5828
In Stock
  • 1 $1.4300
  • 10 $1.0450
  • 25 $0.9480
  • 100 $0.8409
  • 250 $0.7898
  • 500 $0.7591
  • 1,000 $0.7338
  • 2,500 $0.7070
  • 5,000 $0.6909
  • 7,500 $0.6829
  • 12,500 $0.6739
$0.6739 / $1.4300 Buy Now
Quest Components IC,VOLT COMPARATOR,SINGLE,BIPOLAR,SOP,8PIN,PLASTIC 3960
  • 1 $3.9640
  • 328 $1.6352
  • 613 $1.4865
$1.4865 / $3.9640 Buy Now
Cytech Systems Limited IC COMPARATOR 1 GEN PUR 8SOIC 7500
RFQ

Part Details for LM311MX

LM311MX CAD Models

LM311MX Part Data Attributes

LM311MX Texas Instruments
Buy Now Datasheet
Compare Parts:
LM311MX Texas Instruments Precision, high voltage, floating output comparator 8-SOIC 0 to 70
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description SOIC-8
Pin Count 8
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Date Of Intro 1988-05-01
Samacsys Manufacturer Texas Instruments
Amplifier Type COMPARATOR
Average Bias Current-Max (IIB) 0.3 µA
Bias Current-Max (IIB) @25C 0.25 µA
Input Offset Voltage-Max 7500 µV
JESD-30 Code R-PDSO-G8
JESD-609 Code e0
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; OPEN-DRAIN
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR
Peak Reflow Temperature (Cel) 235
Qualification Status Not Qualified
Response Time-Nom 200 ns
Seated Height-Max 1.75 mm
Supply Current-Max 7.5 mA
Supply Voltage Limit-Max 18 V
Supply Voltage-Nom (Vsup) 15 V
Surface Mount YES
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 20
Width 3.9 mm

Alternate Parts for LM311MX

This table gives cross-reference parts and alternative options found for LM311MX. 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 LM311MX, 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 National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator LM311MX vs LM311MX
LM311MX/NOPB National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, LEAD FREE, SOIC-8, Comparator LM311MX vs LM311MX/NOPB
LM311M Texas Instruments Check for Price Precision, high voltage, floating output comparator 8-SOIC 0 to 70 LM311MX vs LM311M
LM311MX Rochester Electronics LLC Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311MX vs LM311MX
LM311M Rochester Electronics LLC Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311MX vs LM311M
LM311M Fairchild Semiconductor Corporation Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311MX vs LM311M
LM311D Motorola Mobility LLC Check for Price COMPARATOR, 10000uV OFFSET-MAX, 200ns RESPONSE TIME, PDSO8, PLASTIC, SO-8 LM311MX vs LM311D
Part Number Manufacturer Composite Price Description Compare
LM311DR2G onsemi $0.1819 Comparator, Single, SOIC-8 Narrow Body, 2500-REEL LM311MX vs LM311DR2G
LM311D Texas Instruments $0.3401 High Speed, 30V, Differential Comparator With Strobes 8-SOIC 0 to 70 LM311MX vs LM311D
LM311M National Semiconductor Corporation Check for Price IC COMPARATOR, 10000 uV OFFSET-MAX, 200 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator LM311MX vs LM311M
LM311D onsemi Check for Price Comparator, Single, SOIC-8 Narrow Body, 98-TUBE LM311MX vs LM311D
KA311D Fairchild Semiconductor Corporation Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOP-8 LM311MX vs KA311D
LP311PWLE Texas Instruments Check for Price Single, Low-Power, Strobed Differential Comparator with Open Collector and Emitter Outputs 8-TSSOP 0 to 70 LM311MX vs LP311PWLE
LM311DT Texas Instruments Check for Price COMPARATOR, 10000uV OFFSET-MAX, 115ns RESPONSE TIME, PDSO8 LM311MX vs LM311DT
LM311DRG4 Texas Instruments Check for Price High Speed, 30V, Differential Comparator With Strobes 8-SOIC 0 to 70 LM311MX vs LM311DRG4
KA311DTF Fairchild Semiconductor Corporation Check for Price Comparator, 1 Func, 10000uV Offset-Max, 200ns Response Time, BIPolar, PDSO8, SOIC-8 LM311MX vs KA311DTF
LM311DRE4 Texas Instruments Check for Price High Speed, 30V, Differential Comparator With Strobes 8-SOIC 0 to 70 LM311MX vs LM311DRE4

LM311MX Related Parts

LM311MX Frequently Asked Questions (FAQ)

  • The maximum voltage that can be applied to the input pins is 30V, but it's recommended to keep it below 15V to ensure reliable operation.

  • To prevent oscillation, add a small capacitor (e.g., 10nF) between the output and the inverting input, and a small resistor (e.g., 1kΩ) between the output and the non-inverting input.

  • The minimum input voltage required is 4.5V, but it's recommended to use a minimum of 5V for reliable operation.

  • No, the LM311MX is a comparator, not an amplifier. It's designed to compare two input voltages and output a digital signal, not to amplify a signal.

  • To reduce power consumption, use a lower supply voltage (e.g., 5V instead of 15V), reduce the input voltage swing, and consider using a lower-power comparator if possible.

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