ADS831E/2K5G4

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Analog to Digital Converters (ADCs) are devices designed to convert an analog signal into a digital representation. The ADS831E/2K5G4 is one such device – a low-cost, two-channel 24-bit ADC for industrial and medical applications. It is designed to acquire two distinct input signals and convert them into digital number streams.

The ADC offers outstanding dynamic linearity and accuracy: it delivers an input-referred noise of 0.5µVrms and -1dBFS of 2.5Vrms. Additionally, Its high rejection rate of up to 80dB in common mode, powerline and other noise provides a robust signal-to-noise ratio and ensures accurate performance.

The ADS831E/2K5G4 ADC is a low-power, low-cost device and requires only one external capacitor and a 3.3V supply voltage. Additionally, it has a low power consumption of 1.5mW per channel, making it suitable for battery-powered applications. It also features programmable input gain and offset, as well as dynamic and static offset cancellation.

The ADS831E/2K5G4 ADC is suitable for a wide range of applications, including measurements of thermocouples, industrial process controls, medical instruments, and advanced audio systems. In addition, it can be used in automated test equipment and devices connected to the Internet of Things.

The device works on the principle of successive approximation and converts the analog signal into a digital representation. This process begins with successive approximation of the analog signal, where a binary search is used to compare the maximum possible value of the analog signal against the actual signal value. Once the comparison is completed, the most significant bit (MSB) of the digital number is filled in, and the process continues with successive approximations for each remaining bit.

Once all the bits of the digital number stream have been determined, the data is then output using two serial communications protocols – I2C or SPI. The I2C protocol provides a low-speed serial data transfer rate of up to 3.4Mbps and is well suited for low-speed data transfer applications. The SPI protocol is a full-duplex serial protocol that offers a higher data transfer rate of up to 16 Mbps and is suitable for higher-speed data transfer.

The ADS831E/2K5G4 ADC is a low-cost, low-power, two-channel ADC with excellent linearity and accuracy. It offers programmable input gain and offset, as well as dynamic and static offset cancellation. Its high rejection rate of up to 80dB in noise and its low power consumption make it well suited for industrial, medical, and IoT applications. Additionally, it features two serial communication protocols – I2C and SPI – for outputting the digital data.

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