Part Number: ADS1147 i'm a beginner .For my project i'm using ADS1147 (20PIN) . I connected the VREFOUT to VREFCOM with a 10uF capacitor. The REFPO and REFNO is not connected. AVDD and DVDD are connected to 3.3V . The DGND and AVSS connected to 0V. Analog input is connected to AIN0 and AIN1. The ADC communicated with SPI. The clock ,chip select, DIN and Dataready signal are getting properly. But we cannot get the output at DOUT. We get only 0.3mV across VREFOUT and VREFCOM I doubted the working of internal REFVOLTAGE. What is the voltage of INTERNAL REFVOLTAGE ? Is there is any enable pin to enable internal REFERENCE VOLTAGE? Thank you How it troubleshoot ?
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