ANALOG DATA AQUISITION DEVICE OF SATELLITE

摘要

PURPOSE: An analog data obtaining apparatus of a satellite is provided to obtain an accurate analog data by maintaining an analog MUX at high impedance at a portion where the power is not supplied. CONSTITUTION: An analog MUX(310) multiplexes the inputted analog data. At least one of high impedance maintenance units(330, 350) is connected to the analog MUX. The high impedance maintenance unit maintains the impedance of the analog MUX at high. The high impedance maintenance unit comprises one or more of capacitors(333, 353) and one or more of diodes(331, 351). A capacitor is serially connected to the analog MUX.