LM111J-8

Current - Input Bias (Max):	0.1µA @ ±15V
Base Part Number:	LM111
Supplier Device Package:	8-CERDIP
Mounting Type:	Through Hole
Package / Case:	8-CDIP (0.300", 7.62mm)
Operating Temperature:	-55°C ~ 125°C
Hysteresis:	--
Propagation Delay (Max):	--
CMRR, PSRR (Typ):	--
Current - Quiescent (Max):	6mA
Current - Output (Typ):	--
Series:	--
Voltage - Input Offset (Max):	3mV @ ±15V
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Output Type:	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Number of Elements:	1
Type:	General Purpose
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Introduction to LM111J-8The LM111J-8 is an operational amplifier and comparator that combines the features of an operational amplifier and a comparator. It is a linear device, specifically a comparator, which amplifies the input voltage to a level sufficient to determine the level of the output voltage, either close-to-zero or close-to-supply voltage.Applications of LM111J-8The LM111J-8 is widely used as an accurate and reliable comparator in numerous applications. It is especially afforded such widespread use due to its ability to handle two distinct modes of operation, open loop and closed loop. Due to this, the LM111J-8 is often used to give out a binary logic state with respect to an input voltage, for example in voltage transient protection and reference voltage generation systems, as it is able to measure the magnitude of input signals with much greater accuracy and response time than other comparator types. It is also used in various sensing and controlling systems, such as process servers, metal detectors, nursing equipment, motor control systems, and remote monitoring and control systems. The LM111J-8 is also widely used where high precision measurements are required, because of its good performance at low frequency and its excellent matching capabilities.Furthermore, the LM111J-8 is unaffected in conditions of power surges and voltage fluctuations, which makes it suitable for use in harsh environments.LM111J-8 Working Principle The LM111J-8 functions as an amplifier and comparator. It works by amplifying the input voltage to a level that can be used to determine the output voltage; either close-to-zero or close-to-supply voltage.The amplifier contains an input stage and an output stage. In the input stage, an operational amplifier is included, while in the output stage, a differential amplifier or differential voltage comparator is present.The LM111J-8 employs the basic principle of comparing two input voltages, V₁ and V₂, and providing the output voltage that is close-to-zero or close-to-supply voltage depending on the value of the two inputs. This is done by first amplifying V₁ and V₂, and then comparing the amplified signals to get the output voltage.In addition, the LM111J-8 is designed to offer wide common-mode input range, high input impedance, low input bias current, high gain stability, and low cost.From the above discussed features and applications, it is amply clear that the LM111J-8 is a great choice for linear comparator applications. The LM111J-8 is thus a reliable, efficient, and cost-effective device for various applications where precision comparison is required.

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