LMV358QDG4

Current - Input Bias:	15nA
Base Part Number:	LMV358
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
Current - Supply:	210µA
Voltage - Input Offset:	1.7mV
Series:	--
Gain Bandwidth Product:	1MHz
Slew Rate:	1 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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LMV358QDG4 Application Field and Working Principle

LMV358QDG4 is a general purpose low power dual operational amplifier, which belongs to the Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps category. It is designed for data acquisition applications and has become popular for its industrial standard 8 pin DIP package.

Features of LMV358QDG4

The LMV358QDG4 from National Semiconductor offers a wide range of features, including:•High gain bandwidth of 1MHZ•Low input bias current •Rail-to-rail inputs•Low offset voltage•Low supply voltage operation•Low power consumption and consumption•Wide operating temperature ranges

Applications of LMV358QDG4

The LMV358QDG4 operational amplifier is ideal for low power operational amplifiers and data acquisition applications. It is well suited for a variety of applications such as:•Transimpedance amplifiers•Buffer amplifiers •Analog to digital converters•Photodiode amplifiers•Medical instrumentation•Test and measurement equipment

Working principle of LMV358QDG4

The LMV358QDG4 is a general purpose dual operational amplifier. It has two independent amplifiers that are powered from a single power supply with a gain of up to 200V/V.The internal configuration of the LMV358QDG4 consists of two input stages, a differential pair and an output stage. The differential pair consists of two complementary transistors which are connected in a cascode configuration.The two input stages act like a differential amplifier, amplifying the difference between the two inputs by a factor of the gain-bandwidth product (GBP). This amplified difference is then fed to the output stage, which converts it into a single-ended output. The output is then amplified further, depending on the gain setting of the amplifier.The LMV358QDG4 has a low input bias current of 5nA, allowing it to operate with low input noise. It also features an improved low offset voltage of 1mv, which helps reduce distortion and improve signal integrity.The LMV358QDG4 operates on a single 4.5V to 9V power supply with a power consumption of 1mA typically. It also includes short circuit and temperature protection for added reliability.

Conclusion

The LMV358QDG4 is a low power dual operational amplifier for general purpose data acquisition and instrumentation applications. It offers high gain bandwidth and low input bias current, as well as rail-to-rail inputs and low offset voltage. It also includes short circuit and temperature protection for added reliability. It is ideal for transimpedance amplifiers, buffer amplifiers, analog to digital converters, photodiode amplifiers, medical instrumentation and test and measurement equipment.

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