LM293DG

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	General Purpose
Number of Elements:	2
Output Type:	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±):	2 V ~ 36 V, ±1 V ~ 18 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:	-25°C ~ 85°C
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Supplier Device Package:	8-SOIC
Base Part Number:	LM293

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The LM293DG is an integrated circuit that functions as a voltage comparator, essentially comparing the voltage of two inputs and when the voltage of one input is higher than the other, a digital output is triggered. The chip is commonly used in a wide range of applications, including conditioning signals for A/D converters, low-level sensing, level shifting, and general voltage control and detection. The LM293DG belongs to the family of linear comparators and makes use of an open-drain output, which is simpler and cheaper than the open-collector alternative. The chip is powered using a single supply voltage, usually between 4.5 and 36 volts. The output from the chip is either high or low, which depends only on the difference between the two input signals. Even though the chip does not incorporate hysteresis, it does incorporate two ways of adjusting the input offset voltage for accurate operation. The working principle of the LM293DG is straightforward, and is based on the fact that the output of the comparator is directly inversely proportional to the voltage difference between the two input signals. When the input voltage is higher than the reference, the output of the comparator is 0 volts, and when the reference voltage is higher, the output of the comparator is Vcc, which is the power supply of the chip. The LM293DG has a wide range of applications, but is most commonly used for general voltage control and detection and low-level sensing. Some of its specific applications include zero-crossing detection, level shifting between two power supplies, precision threshold switching, amplifier peak and valley detection, window detections, and frequency dividers. In terms of performance, the LM293DG offers exceptional results, with a high voltage offset of 10mv, low input current of 1.0mA, and an operating bandwidth of 1.1 MHz. Its operating temperature range is between -40°C and +85°C. The LM293DG has an open-drain output, which is much quieter and simpler to drive than jogging an open-collector output. Overall, the LM293DG is a high performance integrated circuit that functions as a voltage comparator, comparing the voltage of two inputs and triggering a digital output when the voltage of one input is higher than the other. It is a part of the family of linear comparators and makes use of an open-drain output and a single supply voltage. It has a wide range of applications, including zero-crossing detection, level shifting, amplifier peak and valley detection, and precision threshold switching. In terms of performance, the chip offers exceptional results and has an operating temperature range of -40°C to +85°C.

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