MAX11049ETN+

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Analog to Digital Converters (ADC) are devices used to convert a continuous analog signal into digital signals. The MAX11049ETN+ is an integrated 18-Bit, unity-gain instrumentation amplifier (INA) and ADC that provides low-power and fast conversion performance in a single package. It is ideal for power and environmental monitoring, digital control, data logging, and test and measurement applications.

The MAX11049ETN+ is designed for precision data acquisition applications where the need to monitor and analyze multiple conditions within the same environment is critical. It features an 18-bit 5.8SPS adc with 150 µV noise level and 750-ohm input impedance. It has a unity-gain, low-distortion, instrumentation amplifier with a 0.01% gain error, 12kΩ CMRR, and 0.1μV/√Hz input-referred noise. The device features a low 350 µA quiescent current and high sample-and-track accuracy with ±7 ppm/°C gain drift and ±1.5 ppm/°C offset drift.

The MAX11049ETN+ is equipped with an on board 2.5V reference so a wide range of analog inputs can be used, providing improved accuracy and greater flexibility. The MAX11049ETN+ also features a 2-wire inter-integrated circuit (I2C) interface, allowing a user to remotely configure, set and read the parameters of the ADC and INA in a given application. It also has a total supply range of 2.7V to 5.5V, making it suitable for portable, battery-operated and embedded applications.

The working principle of the MAX11049ETN+ is based on an architecture that incorporates a differential amplifier followed by a sample-and-hold amplifier, a low-noise 18-bit successive-approximation A/D converter and an on-board reference. First, the differential amplifier drives the signal into the sample-and-hold amplifier, which produces a voltage proportional to the amplitude of the analog input signal. Then, the amplifier moves this signal into the low-noise A/D converter, where it is converted into digital data. Finally, the data is sent to the user through the I2C interface.

The MAX11049ETN+ is suitable for a variety of applications, including medical, automotive and industrial applications. In medical applications, the low power consumption and high sample-and-track accuracy of the MAX11049ETN+ is ideal for powering medical equipment, such as monitors and imaging devices. The device’s low-distortion allows for accurate signal amplitude measurements and the high CMRR helps to reduce errors in medical diagnostics. In automotive applications, the device’s low-noise and high-accuracy provide reliable data acquisition for safety-critical and fuel-consumption monitoring systems. Its low supply voltage, coupled with low power consumption and high sample-and-track accuracy, make it ideal for industrial applications such as wide-range temperature sensing and data-logging.

The MAX11049ETN+ is an ideal ADC for data acquisition applications due to its low-distortion, low power, and high-accuracy performance. It is suitable for a wide range of applications due to its compact size and integrated INA, and its low supply voltage makes it ideal for battery-operated and portable devices. Its I2C interface allows for remote configuration, setting, and reading of its parameters, making it easier to incorporate in embedded applications.

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