LM339D Integrated Circuits (ICs)

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	General Purpose
Number of Elements:	4
Output Type:	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±):	2 V ~ 32 V, ±1 V ~ 16 V
Voltage - Input Offset (Max):	5mV @ 30V
Current - Input Bias (Max):	0.25µA @ 5V
Current - Output (Typ):	16mA @ 5V
Current - Quiescent (Max):	2.5mA
CMRR, PSRR (Typ):	--
Propagation Delay (Max):	--
Hysteresis:	--
Operating Temperature:	0°C ~ 70°C
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Supplier Device Package:	14-SO
Base Part Number:	LM339

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The LM339D is an integrated circuit and a highly specialized comparator device used for applications that require fast response and precise switching between two states. The device operates from a wide range of supply voltages and both inputs of the comparator can accept a voltage range from ground to the supply voltage. This device can also be used for either voltage slicing or window comparison where it will indicate whether the actual voltage is within or outside of a given range.The basic concept behind comparator devices, like the LM339D, is to compare two voltage values and, depending on their relation, either trip the output state or leave it unchanged. LM339D comparators generally have a high input impedance, which allows them to accurately detect small changes in the input voltage with extremely fast response times thus making them ideal for many applications requiring precise detection of events.The most common application field for LM339D comparators is voltage slicing. This technique allows for the isolation of a single voltage level from a given waveform with an extremely fast on/off switch. This application is most often used with pulse width modulation and analog-to-digital conversion as well as various other applications where a level slicer circuit is needed.The working principle of the LM339D comparator involves taking two separate input voltages and then performing a comparison on them. Depending on the voltage levels of the two inputs, either the output will trip to a set state indicating the presence of a particular voltage, or the output will remain unchanged. If a voltage level has been detected, the comparator will quickly trip its output state, providing a reliable and accurate indication of the presence of the specified voltage.The LM339D comparator is an ideal solution for applications that require fast, accurate and reliable detection of large voltage level changes such as monitoring large power supply or battery voltages, detecting changes in voltage signals due to temperature changes, measuring low frequency signals from sensors, providing feedback signals for motor/positioning control and responding to actuation of push buttons and switches.In conclusion the LM339D comparator is an ideal solution for a variety of applications requiring precision detection of voltage levels at fast response times. It is a highly specialized device used for applications that require precise switching between two states, ideal for voltage slicing circuits and window detecting. The LM339D is a reliable, accurate and efficient device that offers a range of useful applications in a variety of industries.

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