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AD7706BRZ-REEL1 Fiches technique(PDF) 18 Page - Analog Devices |
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AD7706BRZ-REEL1 Fiches technique(HTML) 18 Page - Analog Devices |
18 / 44 page AD7705/AD7706 Rev. C | Page 18 of 44 Table 16. Operating Mode Options MD1 MD0 Operating Mode 0 0 Normal Mode. In this mode, the device performs normal conversions. 0 1 Self-Calibration. This activates self-calibration on the channel selected by CH1 and CH0 of the communication register. This is a one-step calibration sequence. When the sequence is complete, the part returns to normal mode, with both MD1 and MD0 returning to 0. The DRDY output or bit goes high when calibration is initiated, and returns low when self-calibration is complete and a new valid word is available in the data register. The zero-scale calibration is performed at the selected gain on internally shorted (zeroed) inputs, and the full-scale calibration is performed at the selected gain on an internally generated VREF/selected gain. 1 0 Zero-Scale System Calibration. This activates zero-scale system calibration on the channel selected by CH1 and CH0 of the communication register. Calibration is performed at the selected gain on the input voltage provided at the analog input during this calibration sequence. This input voltage should remain stable for the duration of the calibration. The DRDY output or bit goes high when calibration is initiated, and returns low when zero-scale calibration is complete and a new valid word is available in the data register. At the end of the calibration, the part returns to normal mode, with both MD1 and MD0 returning to 0. 1 1 Full-Scale System Calibration. This activates full-scale system calibration on the selected input channel. Calibration is performed at the selected gain on the input voltage provided at the analog input during this calibration sequence. This input voltage should remain stable for the duration of the calibration. The DRDY output or bit goes high when calibration is initiated, and returns low when full-scale calibration is complete and a new valid word is available in the data register. At the end of the calibration, the part returns to normal mode, with both MD1 and MD0 returning to 0. Table 17. Gain Selection G2 G1 G0 Gain Setting 0 0 0 1 0 0 1 2 0 1 0 4 0 1 1 8 1 0 0 16 1 0 1 32 1 1 0 64 1 1 1 128 |
Numéro de pièce similaire - AD7706BRZ-REEL1 |
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Description similaire - AD7706BRZ-REEL1 |
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