bulk driven napu011bu0165ovu00fd atenuu00e1tor contains two pmos transistors kasku00e1dovu011b involved between supply voltage and ground.the first transistor is connected to the drain electrode, the source electrode of second transistor, power supply voltage is supplied to the electrode source of the first transistor.the first input voltage is reproduced on the electrode that second transistor, the second input voltage is reproduced on the electrode bulk of the first transistor.output voltage is reproduced from the second electrode source transistor. the second transistor gate electrode, gate, and drain is grounded.the first transistor is connected to the drain electrode, the source electrode of second transistor.the first gate gate transistor is reproduced in the control voltage, which ensures that the level of the dc voltage at the output of the atenuu00e1toru is half the supply voltage.this increases the range of input voltage following circuit which is connected to the output atenuu00e1toru, i.e. to clamp the output voltage.
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