im using the ad7190 with a reference voltage of VRef=DVDD=AVDD=5V
if i put a Voltage of 2,5V between Ain 1 and Ain 2 i get teh right value (something around 0x7FFXXX) from the Data Register
if i put 0,7V I sometimes get right values and sometimes ( 0x3XXXXX) from the Data Register and sometimes its about 0xFFXXX or 0x7XXXXX)
has anyone an idea why this happens?
im writing the following valuesinto teh registers of AD7190:
Configutation Register: 0x100108
Mode Regisrer : 0x188801
the Data Register is Read every 2ms by an non maskable interrupt