The ADS7028 communicates via an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7028 implements the analogue watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7028 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration.
The ADS7028 features a root-mean-square (RMS) module that computes a 16-bit true RMS result for any analogue input channel. The integrated zero-crossing-detect (ZCD) module allows for transient rejection and hysteresis near the configurable threshold crossings.
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