MAX903EPA

Current - Output (Typ):	--
Base Part Number:	MAX903
Supplier Device Package:	8-PDIP
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C
Hysteresis:	--
Propagation Delay (Max):	--
CMRR, PSRR (Typ):	82.5dB CMRR, 80dB PSRR
Current - Quiescent (Max):	4mA, 3mA, 1.5mA
Series:	--
Current - Input Bias (Max):	10µA @ ±5V
Voltage - Input Offset (Max):	4mV @ ±5V
Voltage - Supply, Single/Dual (±):	5 V ~ 10 V, ±2.5 V ~ 5 V
Output Type:	TTL
Number of Elements:	1
Type:	with Latch
Part Status:	Active
Packaging:	Tube

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Comparators are a type of linear integrated circuit that is initially designed for sharp precision voltage comparison applications. It allows us to compare two different voltage values and then output one of the two possible free results, either high or low, if the conditions are not validated. Comparators are essential for wide variety of applications such as Analog-to-Digital Converters, communications systems, sensor operational amplifiers and so on.MAX903EPA is a comparator famous for its high accuracy and low power consumption. It consists of an integrated circuit design operable at 6 volts (VCC) or 3 volts (VCC) with a dual input voltage range of -2.5 to 26V. It is able to compare two signals and then display a high or low output as result.The application field of MAX903EPA starts with analog-to-digital converters, which use comparison circuits to convert the analog values into digital values. This device is really ideal for that purpose due to its dual input voltage range and its low power consumption. Additionally, it is often used in communications systems, such as for transposing signals of different frequencies and for amplifier threshold detection. It can be also employed in sensor operational amplifiers.The internal circuitry of MAX903EPA is relatively simple and straightforward. Starting from the power-on sequence, the circuit comprises an output stage which is connected to a comparator circuit and is preceded by two outputs (output A and output B), from which the two signals to be compared are taken. Then these two signals are compared again, in the comparator stage, and the result is, then, stored in the flip-flop circuitry. The final output, the comparator\'s high or low signal, is taken from the flip-flop stage and is delivered to the output stage, being finally transmitted to the output terminals.To ensure proper functioning of the MAX903EPA, it is crucial to know the peculiarities of a comparator, such as input and output ranges, functioning modes and so on. Some special attention needs to be given to the input and output voltage ranges, as they need to be carefully adjusted in specified conditions, according to the final results wanted to be achieved.Moreover, it is advisable to keep the internal circuitry of the MAX903EPA maximally clean, dust-free and free of foreign elements, as this can reduce malfunctions and other faulty outputs. Below is the typical schematic of the device:Max903EPA is a versatile and reliable device, suitable for a wide range of applications. Its comparative performance is quite good, especially considering its low power consumption. Nevertheless the necessity of carefully checking input and output voltage ranges, it has been proved to be quite dependable and effective for most of the tasks it is meant for, being, therefore, a great solution for precision voltage comparison jobs.

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