INA141UAG4

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The INA141UAG4 is an instrumentation operational amplifier (in-amp) with a rail-to-rail input and output. It is an integrated circuit that amplifies an analog signal from a sensor and produces an amplified output. The INA141UAG4 operates with a single power supply, has low power consumption, and provides wide bandwidth and high gain. This makes it an ideal choice for automotive, industrial and medical applications.

The INA141UAG4 is a monolithic, precision instrumentation amplifier with a wide gain range (1 to 1050). The chip features a low offset voltage, low input bias current and a low noise figure. It operates from a single +2.7 V to +26.4 V power supply and draws 3mA of quiescent current. The device has a low distortion rating, high slew rate and wide bandwidth, making it suitable for a variety of signal acquisition and conditioning applications in audio, medical imaging, and analog-to-digital conversion systems.

The working principle of the INA141UAG4 is based on the four-quadrant multiplier nature of an instrumentation amplifier. It is configured as three differential amplifiers in a single package. The first input of the differential amplifier is connected to a non-inverting input, while the other input is connected to an inverting input. The outputs of the two differential amplifiers are summed by a differential summing amplifier. The gain of the differential amplifier is set by the ratio of resistors connected to the summing amplifier.

In addition to its gain adjustment, the INA141UAG4 also features a wide common mode range, allowing the device to be used in both single-ended and differential signal applications. The high open-loop gain and small signal bandwidth provide excellent signal-to-noise ratio and low distortion. The device has a large bandwidth, small temperature drift and low input offset voltage, making it suitable for precision signal acquisition and processing systems.

The INA141UAG4 is ideal for use in low voltage signal measurement applications, including audio signal processing, medical imaging, automotive and industrial signal monitoring, and analog-to-digital (ADC) and digital-to-analog (DAC) converters. The low power consumption of the device makes it suitable for portable devices, such as cell phones and laptops. It is also suitable for sensor signal conditioning, providing high accuracy and low distortion. The device is packaged in a small 2x2 mm QFN-8 and is RoHS compliant.

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