HIGH-VOLTAGE AMPLIFIER CIRCUIT FOR MINIMIZATION OF AREA

摘要

PURPOSE: A high voltage amplifier circuit for minimizing an area is provided to reduce parasitic capacitance by designing a low voltage part within a high voltage amplifier circuit. CONSTITUTION: A low voltage part receives a voltage from an inverting input terminal(T1) and a non-inverting input terminal(T2). A high voltage part outputs an amplified voltage through an output terminal(T3) by amplifying the voltage inputted into the low voltage part. A voltage isolating part is connected between the low voltage part and the high voltage part. The voltage isolating part isolates the voltage of the low voltage part and the voltage of the high voltage part. The low voltage part includes a first transistor(P21) which is connected to a bias current source(C2) and the inverting input terminal and a second transistor(P22) which is connected to the bias current source and a non-inverting input terminal.