KA393

Current - Input Bias (Max):	0.25µA @ 5V
Base Part Number:	KA393
Supplier Device Package:	8-DIP
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Operating Temperature:	0°C ~ 70°C
Hysteresis:	--
Propagation Delay (Max):	--
CMRR, PSRR (Typ):	--
Current - Quiescent (Max):	2.5mA
Current - Output (Typ):	18mA @ 5V
Series:	--
Voltage - Input Offset (Max):	5mV @ 5V
Voltage - Supply, Single/Dual (±):	2 V ~ 36 V, ±1 V ~ 18 V
Output Type:	--
Number of Elements:	2
Type:	General Purpose
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Linear–comparators are electronic devices used to compare two different input signals such as voltage, current, light, or pressure. One of the more common and widely used types of linear–comparator is the KA393, a precision four-quadrant, complementary metal–oxide–semiconductor (CMOS) operational amplifier available in both single and dual packages.The KA393\'s main virtue is its extreme performance, with an input offset voltage of only 10 mV and an offset voltage temperature coefficient of 0.1 μV/°C. In addition, it has an extremely low input bias current of 1 nA and a wide supply voltage ranging from 4.5 V to 10 V. It also has excellent common-mode rejection with a ratio of 100 dB at 1 kHz and a slew rate of 0.3V/μs.The KA393 is typically used in applications such as precision A/D converters, photodiode amplifier, multiplexer/demultiplexer, and programmable analog–to–digital converters. Moreover, its low noise level, fast slew rate, low input offset voltage and temperature coefficient, as well as its high common–mode rejection ratio, make it an ideal choice for many application needs.The basic working principle of the KA393 is that two independent comparators in the device compare two different input signals, usually two analog input signals. If the first signal is higher than the second signal, then the output of the KA393 is one of two states: either a (high) logic high or a (low) logic low. If the input signals are equal, the output is a (stable) middle state. The KA393 is ideal for applications that require precise measurement or comparison of two input signals due to its precise response to a changing environment. It is also widely used in embedded systems that require precise analog–to–digital conversion.The KA393 is also well suited to high speed, high frequency operations due to its low power consumption, low output impedance and low power supply noise.) Its input bias current is also very low, making it ideal for operation in low noise environments, where one doesn’t want to introduce substantial amounts of additional noise into the signal chain from the amplifier itself.The KA393 also has an adjustable gain, allowing users to finely adjust the device\'s performance to suit specific applications. Its wide supply voltage range makes it especially suitable for portable electronic applications. The KA393 also offers excellent short and long-term stability over temperature, allowing the user to eliminate the need for temperature compensation.Overall, the KA393 is an ideal choice for a variety of linear–comparator applications. With its low offset voltage, low bias current, high stability, and high common–mode rejection ratio, it is the perfect choice for applications where precision measurement or comparison of two signals is necessary.

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