MCP3426A3-E/SN

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Data Acquisition – Analog to Digital Converters (ADC) are used to convert an analog signal into a digital form. The MCP3426A3-E/SN is one such ADC which is highly versatile in its application field and has simplified the process of converting an analog signal into digital data. It is based on a 12-bit delta-sigma ADC with a PGA gain of up to 8x. This device provides an excellent noise performance and wide dynamic range. This article aims to discuss the working principle and application field of the MCP3426A3-E/SN ADC.

Working Principle of MCP3426A3-E/SN

The MCP3426A3-E/SN uses a single-ended/differential delta-sigma architecture with SINC4 digital filtering for acquiring an analog signal. The device is capable of measuring various types of analog signals. It uses a two-phase architecture to ensure a low distortion and wide bandwidth response. This architecture consists of an analog section and a digital section, both of which are connected together by an internal clock.

The analog section offers different gain options. The gain can be controlled via a serial interface which is based on a standard I2C protocol. The effective resolution of the device can be altered by changing the gain setting. The analog section uses a sample and hold circuit, followed by a bootstrapped switched capacitor filter, to accurately capture the input signal.

The digital section processes the analog signal and performs Delta-Sigma conversion. After the signal has been filtered using the SINC4 filter, the analog signal is converted into a digital signal. The output data is then sent out through an I2C interface.

Application Field of MCP3426A3-E/SN

The device is suitable for various types of applications due to its wide range of properties. Some of the major application fields of the MCP3426A3-E/SN include:

• Data Acquisition: The device can be used for capturing analog signals and conversion into digital form for various data acquisition purposes. It can be used for various tasks, such as measuring temperature, pressure, voltage, and current.
• Process control: The device can be used in industrial process control applications, such as motor and pump controllers. It can be used to read inputs, such as voltage and current, and control the outputs accordingly.
• Medical: The device can be used in medical applications, such as medical imaging, as well as vital signs monitoring.
• Consumer electronics: The device can be used in consumer electronics, such as in cameras, phones, tablets, etc.

The MCP3426A3-E/SN is a highly versatile ADC which can be used in a wide range of applications, both commercial and industrial. It is affordable, easy to use, and provides high precision and accuracy. The device is suitable for both short and long-term applications as it offers low power consumption.

Conclusion

The MCP3426A3-E/SN is an analog to digital converter (ADC) based on a 12-bit delta-sigma architecture with PGA gain of up to 8x. It has numerous features which contribute to its high versatility. The device uses a two-phase architecture to accurately acquire an analog signal and convert it into digital form. This device is suitable for a variety of applications, such as data acquisition, process control, medical, and consumer electronics.

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