LMV722MM

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Linear amplifiers, instrumentation amplifiers, op amps, buffers, and current mirror circuits are essential and powerful components that are used to accurately and reliably measure, control, and record physical phenomena. The LMV722MM is a dual-channel, rail-to-rail input- and output-compatible, low-noise, low-power, CMOS instrumentation amplifier. It is widely used for low-voltage input applications in automotive, industrial, and medical fields.

An instrumentation amplifier is a three-operational amplifier circuit used to amplify signals with high accuracy of gain and low noise. The LMV722MM includes two independent instrumentation amplifiers on a single ASIC. Each amplifier contains a pair of identical, high-performance low-noise input stages, a programmable gain stage, a low-drift output stage, and a precision reference. The LMV722MM is suitable for a wide range of applications including high frequency, low power, and low voltage measurements. The low power consumption of the LMV722MM also makes it suitable for mobile systems.

The amplifiers’ gain is programmable between -0.5 to -100,000 with a 0.1 dB step size, making it one of the most accurate amplifiers available. The input stage uses a fully differential input structure to achieve wide common-mode rejection ratio. Internal on-chip resistors are used to program gain, while a high-precision reference enables the amplifiers to achieve high accuracy. The low output noise and input offset voltage of the LMV722MM make it suitable for signals with small amplitudes and low voltage levels.

The LMV722MM features a rail-to-rail input and output for both amplifier channels. This provides excellent linearity, low noise, and high accuracy for the user. The output can also be turned off, reducing power consumption for idle time applications. The LMV722MM is tuned for low power consumption and can operate on single supply voltage of 2.6 V to 5.5 V. It also includes a power-down mode that allows the connection of both pins of the dual pin to ground while the amplifiers are in power-down mode.

The LMV722MM can provide precise and accurate performance in application fields such as medical diagnostics, displays, automotive instrumentation, analyzers, robotics and many more. Its wide common mode rejection ratio allows the amplifiers to be used in any kind of system containing noise, such as in factory automation and industrial process control. It is a reliable and versatile solution for various amplification needs.

The working principle of the LMV722MM is simple and straightforward. The input stages are low-noise and have a wide common-mode rejection ratio for noise-sensitive applications. The gain is controlled by four internal resistors that set the gain of the amplifier. The output stage provides a low-drift, rail-to-rail output voltage, and includes an error amplifier that ensures that the gain of the amplifier is held constant over the entire input voltage range. The power-down mode provides low power consumption and allows the LMV722MM to be used in low power applications.

The LMV722MM is a highly accurate and reliable instrumentation amplifier, designed to meet the needs of various demanding applications. With its low-noise and low-power operation, it is suitable for low voltage applications in the automotive, industrial, and medical fields. Its on-chip control pins provide accurate gain control, while the power-down mode reduces power consumption during idle periods. The LMV722MM provides accurate, reliable, and versatile performance for a wide range of low voltage applications in industries and scientific research.

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