| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a time amplitude conversion device capable of reducing an influence due to variations in an electrical characteristic of an element in a constitution using a plurality of time amplitude conversion circuits of a TAC (Time to Amplitude Converter) system. <P>SOLUTION: A differential amplifier circuit 8 detects a difference of input voltage between an input terminal on a non-inverting side and an input terminal on an inverting side and outputs voltage in which the detected difference is multiplied by gain A. A gate terminal of an adjustment transistor 9 is connected to an output terminal of the differential amplifier circuit 8. The adjustment transistor 9 outputs current in which the input voltage is multiplied by transconductance g<SB POS="POST">m</SB>. S/H circuits 7-b and 7-c, the differential amplifier circuit 8 and the adjustment transistor 9 form a calibration section. Control signal input terminals 11-13 are connected to a control circuit as a control section for controlling a circuit operation of a time amplitude conversion circuit 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
