LMV981MG/NOPB

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An LMV981MG/NOPB amplifier is an exceptional choice for a variety of applications. This instrumentation amplifier is great for a broad range of applications, including linear and differential signal amplification, signal conditioning, and signal filtering. Read on to learn more about the LMV981MG/NOPB application field and working principle.

Application Field

The LMV981MG/NOPB is a low power, low-voltage, differential amplifier with programmable gain and high common-mode rejection ratio. It is ideal for applications where there are multiple input signals that need to be amplified and summed for further processing. It can be used for signal conditioning in low voltage, high current control loops. The amplifier operates from a single supply and can be powered from a 6V battery or any other power source.

The LMV981MG/NOPB can be used in a variety of linear amplification applications such as buffer amplifiers, portable digital signal processing systems, and ac voltage measurement. Additionally, its wide supply voltage range and excellent dynamic response make it ideal for instrumentation and sensor signal conditioning applications. It can also be used in a differential stage of an electronic device as an analog signal processing element.

Working Principle

The LMV981MG/NOPB amplifier consists of three stages: a programmable gain stage, a differential stage, and an output stage. It operates with a single supply voltage of +3V to +18V and can drive loads up to 120mA. It features a wide input common-mode range that allows inputs of up to 18V above and below the supply voltage. The gain stage can be set with an external resistor network, allowing for gains from 1 to 20 V/V. The differential input stage allows for high common-mode signal rejection between the differential inputs and provides an output voltage with a signal range of Vcm ± 10V.

The output stage is an protected rail-to-rail output amplifier with a maximum output voltage of 18V. The protected output amplifier reduces power consumption and prevents the output from being overdriven. Additionally, the output is provided with short-circuit and overvoltage protection. The LMV981MG/NOPB can also be used with an external power supply which allows it to drive larger loads up to 400mA.

Conclusion

The LMV981MG/NOPB is a great choice for linear amplifiers, instrumentation, OP Amps, and buffer amplifiers. It features an adjustable gain, low power consumption, and a wide input common mode range. Its protected output allows it to be used with an external supply and can drive larger loads. By understanding the LMV981MG/NOPB application field and working principle, you can make the most out of this versatile amplifier for your next project.

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