Low dose rate testing on commercial micropower single supply rail-to-rail instrumentation amplifiers

Instrumentation amplifiers suitable for low Earth orbit space missions were irradiated at low dose rate with gamma particles by INTA. The aim of this work is to analyze the enhanced of low dose rate sensitivity in devices based on bipolar technology, which are sensitive to it. For this purpose parameters as gain error, frequency response, offset voltage, supply, offset and bias currents were measured. Results and conclusions about the components radiation hardness assurance are reported.