ZHCSGS4A August 2017 – February 2020 ADS114S06B , ADS114S08B
PRODUCTION DATA.
请参考 PDF 数据表获取器件具体的封装图。
The selected external ADC reference inputs can be continuously monitored for a low reference voltage. The reference detection circuit has a threshold of 300 mV. The reference detection circuit measures the differential reference voltage and sets a flag latched after each conversion in the STATUS byte if the voltage is below the threshold. A reference voltage less than 300 mV can indicate a potential short on the reference inputs or, in case of a ratiometric RTD measurement, a broken wire between the RTD and the reference resistor.
The reference monitor must be enabled with the FL_REF_EN bit in the reference control register (05h). The FL_REF flag (bit 0 of the STATUS byte) indicates if the select external reference voltage is lower than 0.3 V. A reference monitor fault is latched at each conversion cycle and the FL_REF flag in the status register is updated at the falling edge of DRDY.