The maximum voltage that can be applied to the input pins is VDD + 0.3V, which is typically 5.5V for a 5V supply. Exceeding this voltage can damage the device.
The gain settings for the ADS1115 can be configured using the PGA (Programmable Gain Amplifier) bits in the Config Register. The PGA bits allow you to set the gain to 2/3, 1, 2, 4, 8, or 16. The gain setting determines the full-scale range of the ADC.
The DRDY (Data Ready) pin is an output pin that goes low when a conversion is complete and the data is ready to be read. It can be used to interrupt the microcontroller to read the data, or to poll the pin to determine when the data is ready.
If the input voltage is higher than the reference voltage, the ADS1115 will saturate and the output code will be the maximum value (0x7FFF for a 16-bit conversion). To handle this case, you can use the overrange detection feature, which sets the OVERRUN bit in the Status Register if the input voltage exceeds the reference voltage.
The typical current consumption of the ADS1115 is around 150 μA when operating at 3.3V and 10 SPS (samples per second). However, this can vary depending on the operating frequency, voltage, and other factors.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
