LM94022BIMGX

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The LM94022BIMGX is a temperature sensor designed specifically for the automotive industry. This advanced temperature sensor offers an unprecedented level of accuracy and reliability in a compact package, making it ideal for motor vehicle applications. The LM94022BIMGX is designed to work in ambient temperatures ranging from −40°C to +145°C. It is a multi-point digital temperature sensor with linearized scaling and two dedicated signal-conditioning ports.

The LM94022BIMGX offers two different output types: analog and digital. The analog output provides a linearized output signal ranging from 0°C to 255°C with 0.5°C resolution. The temperature conversion is done on the die using an advanced algorithm which produces a highly accurate signal. The output signal is calibrated over the full temperature range so that the user can be assured of stable and correct results. The digital output provides a cost optimized solution for applications which only require a single point temperature reading over a limited temperature range.

The LM94022BIMGX includes two signal-conditioning ports which allow it to be connected directly to a host microprocessor or other electronic system such as a data logger. The first signal-conditioning port is used to detect the supply voltage for the LM94022BIMGX and it can be configured for either single-ended or differential input. The second signal-conditioning port is used for the programming of the LM94022BIMGX and it can be configured for either a parallel or serial interface.

The internal architecture of the LM94022BIMGX includes a two stage analog signal path, which includes an integrated thermistor, current to voltage converters, an analog to digital converter and a temperature algorithm engine. The thermistor is used to measure the temperature and is connected to the die via the current to voltage converters. The input signal from the thermistor is then converted into a digital signal using the onboard analog to digital converter. The digital signal is then used by the temperature algorithm engine to generate an output signal that is either an analog voltage or a digital word depending on the application requirements.

The LM94022BIMGX is well suited for applications such as automotive cooling systems, engine performance monitoring, and other temperature related monitoring applications. Its temperature sensing range of −40°C to +145°C and its low power digital output ensure a reliable, accurate temperature reading. The LM94022BIMGX also features an on-chip calibration routine that is used to improve accuracy over the entire temperature range. With its high accuracy, small size, and robust design, the LM94022BIMGX is an ideal temperature sensor for the automotive industry.

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