Script: Measure pixel dynamic range assuming various technology properties
Pixel dynamic range is an important property that specifies the range of
illuminance levels that can be reliably measured by a pixel.
The formula for pixel dynamic range is
20 log10 ( pixVoltageRange / pixNoise )
with definitions
pixVoltageRange: the max voltage swing minus the accumulated dark
voltage (for a particular integration time)
pixNoise: the standard deviation of the combined read noise plus dark
voltage noise.
The dynamic range depends on the integration time because the dark
voltage accumulates over time. It is possible to calculate the dynamic
range assuming that there is no dark voltage. But we leave this for the
marketing people ;).
Copyright ImagEval Consultants, LLC, 2005.