AD7875LPZ-REEL

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AD7875LPZ-REEL is a data acquisition analog to digital converter (ADC) which is designed to bring convenient, reliable and cost-effective measurements of voltage or current signals. This precision device captures and encodes analog values into 12-bit digital words and delivers them directly to a microprocessor or microcontroller, minimizing the amount of circuitry required for data conversion. The device can also be used in low-power medical electrodes and applications where battery life and power consumption are of primary importance.

The AD7875LPZ-REEL is an ultra-compact 12-bit ADC which is capable of expanding short-term measurements to longer-term trends with the addition of EEPROM storage for data logging. Its precision sigma-delta architecture ensures accurate measurements with a wide range of sampling frequencies.

The device includes several features for enhanced convenience and efficiency, including an on-chip temperature sensor which can be used for temperature compensation of measurements; an on-chip comparator with hysteresis; and single- and dual-slope conversion methods. It supports multiple interface protocols, including SPI and I2C, allowing for flexible integration and communication.

The AD7875LPZ-REEL is designed to be used in a wide range of applications, such as power and process control, medical, automotive, audio and consumer electronics. The device can also be used in precision measurements in industrial and aerospace applications, such as level and flow measurements, humidity and pressure monitoring, and pulse rate and oxygen saturation measurements.

The working principle of the AD7875LPZ-REEL is based on sigma-delta conversion. This method utilizes oversampled signals, which are digitalized and filtered. This creates a digital output stream which provides the conversion from the input analog signal to a digital output value. With sigma-delta conversion, signals can be accurately sampled with low sample rates, making it highly energy and time efficient. The device continuously samples the input signal, passes it through an analog-to-digital converter and then filters the converted data. The output stream is then fed to the next stage of processing where the data is further quantized.

Overall, the AD7875LPZ-REEL is an ideal solution for obtaining accurate and reliable measurements in many applications. Its ultra-compact size, low power consumption, precision sigma-delta architecture, and wide range of interfaces make it an excellent choice for data acquisition and conversion applications.

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