Abstract
An improved version of the gain switched amplifier sensitive to large input dynamic range is described. While the accuracy of the logarithmic amplifier is limited, in the already developed gain switched amplifier, the switching pulses come along with the main output which cause problems in the online processing of the data. In the present improved version, the gain is decided in advance and hence the output is devoid of such interfering gain switching pulses. This amplifier finds its usage in the rocketborne measurement of solar radiation intensities and sky radiation intensities for deriving concentrations of atmospheric ozone, aerosol etc.
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