ADX122QAMSOP10

ADX122(Q) is a precision, low-power, 20-bit resolution, SPI-compatible analog-to-digital converter (ADC). ADX122(Q) is available in QFN-10 and MSOP-10 packages, integrating a low-drift voltage reference, oscillator, programmable gain amplifier (PGA), power line interference filter, and digital comparator, among other functional modules, to simplify system design complexity and cost. ADX122(Q) features an input multiplexer (MUX) that allows for two differential or four single-ended input measurements. The PGA offers an input range of ±256mV to ±6.144V, enabling precise large and small signal measurements. The internal digital filter of ADX122(Q) provides flexible output data rates ranging from 10SPS to 3571SPS. The power line interference filter can be configured for 50Hz or 60Hz rejection modes, or both simultaneously to suppress 50Hz and 60Hz power line interferences. ADX122(Q) operates in either continuous conversion mode or single-shot mode. The internal filter is single-cycle stable in both modes. In single-shot mode, the device automatically powers down after one conversion; thus, significantly reducing power consumption during idle periods. ADC conversion results are transmitted via the SPI™ interface. Additionally, ADX122(Q) can operate over a wide power supply range, making it highly suitable for power and space-constrained sensor measurement applications.