Murata DNT24 Series, Руководство по интеграции

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VccAdcOffset - this parameter is the 2’s complement offset added to the scaled ADC measurement when the ADC refer-
ence is derived from Vcc/1.6.
VccDacScaleFactor - this parameter is the scale factor applied to a DAC measurement when the DAC reference is Vcc.
The scale factor parameter is multiplied by 32768. for example, the parameter value for a scale factor of 1.12 = 1.12 *
32768 = 36700.16 or 0x8F5C.
VccDacOffset - this parameter is the 2’s complement offset added to the scaled DAC measurement when the DAC refer-
ence is Vcc.
1VAdcScaleFactor - this parameter is the scale factor applied to an ADC measurement when the ADC reference is the 1
V internal reference. The scale factor parameter is multiplied by 32768. for example, the parameter value for a scale fac-
tor of 1.12 = 1.12 * 32768 = 36700.16 or 0x8F5C.
1VAdcOffset - this parameter is the 2’s complement offset added to the scaled ADC measurement when the ADC refer-
ence is the 1 V internal reference.
1VDacScaleFactor - this parameter is the scale factor applied to a DAC measurement when the DAC reference is the 1 V
internal reference. The scale factor parameter is multiplied by 32768. for example, the parameter value for a scale factor
of 1.12 = 1.12 * 32768 = 36700.16 or 0x8F5C.
1VDacOffset - this parameter is the 2’s complement offset added to the scaled DAC measurement when the DAC refer-
ence is the 1 V internal reference.
AdcDiffMode - a parameter value of 0 selects single-ended ADC mode. In this mode, negative sensor inputs are connect-
ed to ground and positive sensor inputs to ADC0, ADC1 and ADC2 respectively. Three ADC measurements are made in
this mode with a range of 0x0000 to 0x07FF. A parameter value of 1 selects signed differential mode with gain. In this
mode, the negative sensor inputs are connected to ADC0 and the positive inputs are connected to ADC1 and ADC2. Two
ADC measurements are made in this mode, ADC1 to ADC0 and ADC2 to ADC0, with a range (signed) from 0xF800 to
0x07FF. In differential mode, the
AdcGainCh0 and AdcGainCh1 parameters can change the selected gain for the two
ADC readings, and the AdcDiff scale factors and offsets, both supplied by the customer, are used.
AdcGainCh0 - this parameter sets the preamplifier gain applied when making a differential measurement of ADC1 relative
to ADC0. Setting this parameter to 0x00 sets the gain to 1, 0x01 sets the gain to 2, 0x02 sets the gain to 4 and so on, up
to 0x06 which sets the gain to 64. Note that the preamplifier output voltage saturates at 2.4 V regardless of the gain set-
ting.
AdcGainCh1 - this parameter sets the gain applied when making a differential measurement of ADC2 relative to ADC0.
Setting this parameter to 0x00 sets the gain to 1, 0x01 sets the gain to 2, 0x02 sets the gain to 4 and so on, up to 0x06
which sets the gain to 64. Note that the preamplifier output voltage saturates at 2.4 V regardless of the gain setting.
AdcDiffScaleFactorCh0/1 and AdcDiffOffsetCh0/1 - these parameters are applied to the raw ADC readings in differential
mode. These values are not factory calibrated, but can be calibrated by the user.
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DNT24 Integration Guide R2.0 - 10/27/14
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