private double CodeToVoltage(int adc_code, double vref, Ltc2305ConfigBits uni_bipolar)
{
double voltage;
double sign = 1;
if (uni_bipolar == Ltc2305ConfigBits.UnipolarMode)
{
voltage = (adc_code >> 4) / (Math.Pow(2, 12) - 1); //! 2) This calculates the input as a fraction of the reference voltage (dimensionless)
}
else
{
vref = vref / 2;
if ((adc_code & 0x8000) == 0x8000) //adc code is < 0
{
adc_code = (adc_code ^ 0xFFFF) + 1; //! Convert ADC code from two's complement to binary
sign = -1;
}
voltage = sign * (float)adc_code;
voltage = voltage / (Math.Pow(2, 15) - 1); //! 2) This calculates the input as a fraction of the reference voltage (dimensionless)
}
voltage = voltage * vref; //! 3) Multiply fraction by Vref to get the actual voltage at the input (in volts)
return(voltage);
}
private double CodeToVoltage(int adc_code, double vref, Ltc2305ConfigBits uni_bipolar)
{
double voltage;
double sign = 1;
if (uni_bipolar == Ltc2305ConfigBits.UnipolarMode)
{
voltage = (adc_code >> 4) / (Math.Pow(2, 12) - 1); //! 2) This calculates the input as a fraction of the reference voltage (dimensionless)
}
else
{
vref = vref / 2;
if ((adc_code & 0x8000) == 0x8000) //adc code is < 0
{
adc_code = (adc_code ^ 0xFFFF) + 1; //! Convert ADC code from two's complement to binary
sign = -1;
}
voltage = sign * (float)adc_code;
voltage = voltage / (Math.Pow(2, 15) - 1); //! 2) This calculates the input as a fraction of the reference voltage (dimensionless)
}
voltage = voltage * vref; //! 3) Multiply fraction by Vref to get the actual voltage at the input (in volts)
return (voltage);
}
