LMV321IDBVTE4

Current - Input Bias:	15nA
Base Part Number:	LMV321
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
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:	130µA
Voltage - Input Offset:	1.7mV
Series:	--
Gain Bandwidth Product:	1MHz
Slew Rate:	1 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction of LMV321IDBVTE4

The LMV321IDBVTE4 is an instrumentation amplifier (also known as an "in amp") belonging to the linear amplifiers family. This device operates by amplifying the differential input signal while rejecting any input common-mode gain. An instrumentation amplifier can also provide gain, offset control and a high input impedance. It is used in a variety of applications as a linear amplifier, as a buffer, or as an output stage of an op amp.

Application Field of LMV321IDBVTE4

The LMV321IDBVTE4 is used in the linear amplifiers category, and is suitable for use in a variety of applications that require the implementation of high quality linear amplification and signal conditioning. These include medical electronics, industrial instrumentation and control systems, automotive systems, industrial process control and test equipment.In medical electronics, the device can be used for measuring ECG signals, detecting small changes and monitoring physiological processes, including cardiac function and respiration rate. In industrial instrumentation and control systems, the LMV321IDBVTE4 can be used for temperature measurement and control, pressure measurement, signal gain adjustment and signal filtering. In the automotive industry, it can be used for signal conditioning, signal transmission and detection of voltage. For industrial process control and test equipment, the device is suitable for precision measurements, such as resistance, current, pressure and temperature.

Working Principle of LMV321IDBVTE4

The LMV321IDBVTE4 is a 3-opamp instrumentation amplifier. It is based on a differential input topology, with an offset null and Rg selector option.The working principle of the device is fairly straightforward—it amplifies the differential input signal while rejecting any input common-mode gain. This is accomplished by summing the voltages at each input, subtracting the two resultant voltages, and then amplifying the difference. An instrumentation amplifier also provides gain and offset control. Depending on the application, the gain and offset can be either adjustable or fixed.Because the input impedance of the instrumentation amplifier is high, its slew rate can be increased. This is especially beneficial for applications that require high speed accuracy and precision.

Conclusion

The LMV321IDBVTE4 is a 3-opamp instrumentation amplifier that is suitable for use in a variety of linear amplifier, buffer, and op amp applications. It is capable of amplifying the differential input signal while rejecting any input common-mode gain, and can provide adjustable or fixed gain and offset control. The device also offers a high input impedance, enabling increased slew rate accuracy and precision.

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