ADX125AMSOP10

The ADX125 is a precision, low-power, 16-bit resolution analog-to-digital converter (ADC) that is compatible with the I²C interface and is available in both MSOP-10 and QFN-10 packages. The ADX125 integrates several functional modules, including a low-drift voltage reference, high-precision temperature sensor, oscillator, programmable gain amplifier (PGA), power-line frequency rejection filter, and digital comparator, to simplify system design complexity and cost. The device features an input multiplexer (MUX) that supports two differential or four single-ended input measurements. The PGA offers an input range from ±256mV to ±6.144V, enabling precise measurement of both large and small signals. The high-precision temperature sensor integrated on the ADX125 can be used for temperature detection or cold-junction compensation for thermocouples. The internal digital filter provides flexible output data rates, ranging from 10 SPS to 3571 SPS. The power-line frequency rejection filter can be configured for 50Hz or 60Hz rejection, or for simultaneous rejection of both 50Hz and 60Hz interference. The digital comparator can be used for over-voltage and under-voltage detection. The ADX125 operates in either continuous conversion mode or single-shot mode. The internal filter is single-cycle stable in both modes. After a single conversion in single-shot mode, the device automatically powers down, significantly reducing power consumption during idle periods. ADC conversion results are transmitted via the I²C interface. The ADX125 can operate over a wide supply voltage range, making it highly suitable for sensor measurement applications with power and space constraints.