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AD7719 Datasheet(PDF) 18 Page - Analog Devices |
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AD7719 Datasheet(HTML) 18 Page - Analog Devices |
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18 / 40 page  REV. 0 AD7719 –18– Power-On/Reset Register Name Type Size Default Value Function Main ADC (DATA0) Data Register Read Only 16 Bits or 24 Bits 000000 Hex Provides the most up-to-date conversion result from the Main ADC. Main ADC data register length can be programmed to be 16-bit or 24-bit. Aux ADC (DATA1) Data Register Read Only 16 Bits 0000 Hex Provides the most up-to-date conversion result from the auxiliary ADC. Aux ADC data register length is 16 bits. Main ADC Offset Register Read/Write 24 Bits 800000 Hex Contains a 24-bit word that is the offset calibration coefficient for the part. The contents of this register are used to provide offset correction on the output from the digital filter. There are three Offset Regis- ters on the part and these are associated with input channel pairs as outlined in the AD0CON register. Main ADC Gain Register Read/Write 24 Bits 5XXXX5 Hex Contains a 24-bit word that is the gain calibration coefficient for the part. The contents of this register are used to provide gain correction on the output from the digital filter. There are three Gain Registers on the part and these are associated with input chan- nel pairs as outlined in the AD0CON register. Aux ADC Offset Register Read/Write 16 Bits 8000 Hex Contains a 16-bit word that is the offset calibration coefficient for the part. The contents of this register are used to provide offset correction on the output from the digital filter. Aux ADC Gain Register Read/Write 24 Bits 59XX Hex Contains a 16-bit word that is the gain calibration coefficient for the part. The contents of this register are used to provide gain correction on the output from the digital filter. ID Register Read 8 Bits 0X Hex Contains an 8-bit byte that is the identifier for the part. Test Registers Read/Write 16 Bits 0000 Hex Controls the test modes of the part which are used when testing the part. The user is advised not to change the contents of these registers. |
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