LM311DT Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	General Purpose
Number of Elements:	1
Output Type:	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Voltage - Supply, Single/Dual (±):	5 V ~ 30 V, ±2.5 V ~ 15 V
Voltage - Input Offset (Max):	7.5mV @ ±15V
Current - Input Bias (Max):	0.25µA @ ±15V
Current - Output (Typ):	50mA
Current - Quiescent (Max):	7.5mA
CMRR, PSRR (Typ):	--
Propagation Delay (Max):	--
Hysteresis:	--
Operating Temperature:	0°C ~ 70°C
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Supplier Device Package:	8-SO
Base Part Number:	LM311

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LM311DT Linear - Comparators

Alinear-comparatorsisadevicethatisusedtocomparetwovoltagestoseeiftheyaredifferent.TheLM311DTisanintegratedcircuithatisdesignedtoprovidesuchacomparisonservice,inadditiontobuilt-inprotectionthatpreventovercurrentoranyothertypeofdamagetoitscircuitry.TheLM311DTistypicallymanufacturedasadualinlinepackage(DIP).Thisdevicecontainstwopins,oneforpositivepower,andtheotherfornegativepower,andsomeadditionalpinsforcontrol.TheoutputoftheLM311DTisalsodifferentdependingonwhethertheinputvoltagesarethe same or different. ThesectionbelowwilldetailtheworkingprincipleoftheLM311DT,aswellastypicalapplicationfieldswhereitisused.

Working Principle of the LM311DT

ThewaythattheLM311DTworksisthroughitsinternalelements.Forinstance,itcontainsaninternalcomparatorthatwillcomparethevoltagesonthepositivedatapinand the negative data pins. If the voltages are the same, the comparator will send one type of output. If the voltages are different, then the comparator will send a different type of output.In addition to the internal comparison circuitry, the LM311DT also features a window comparator. This is a built-in system that will compare any voltage that is below a preset threshold with any voltage above the same threshold. If the voltages are different, then the output from the LM311DT will indicate this.Finally, the LM311DT includes protection circuitry. This is designed to protect the circuit against overcurrent and other potential damage. If an overload is detected, the protection circuitry will shut off the power to the entire circuit, preventing any major damage.

Application Fields for the LM311DT

The LM311DT is a very versatile device and can be used in a variety of different fields. One of the most common applications is in motor control. Here the LM311DT can be used to compare the voltage of the motor\'s current with the voltage of the motor\'s target speed. If the voltage is different, then the appropriate action can be taken to adjust the motor speed accordingly.Other application fields include process control, temperature compensation, power management, instrumentation and automated test equipment. All of these require the LM311DT to compare different voltages in order to make decisions or take actions based on the comparison results. In addition to these application fields, the LM311DT has also been used extensively in personal electronics devices, such as gaming systems or other types of entertainment.

Conclusion

The LM311DT is a powerful integrated circuit that can be used for a wide variety of applications that require linear-comparators for data or voltage comparisons. Its protection circuitry ensures that any overcurrent or other damage is prevented, and its internal comparison systems provide a reliable voltage comparison service for various application fields.

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