METHOD FOR EVALUATING DIFFERENTIAL TRANSIMPEDANCE AMPLIFIER, METHOD FOR EVALUATING OPTICAL RECEIVING CIRCUIT, STORAGE MEDIA IN WHICH PROGRAMS THEREFOR ARE RESPECTIVELY STORED, AND DEVICES

摘要

Provided is an evaluation method for evaluating the characteristic of a differential transimpedance amplifier with high precision.  Four terminals of a differential transimpedance amplifier (100) are respectively connected to four ports of a 4-port vector network analyzer (101).  The S-parameter of the differential transimpedance amplifier (100) is measured by the 4-port vector network analyzer (101).  The differential-mode S-parameter SDD is calculated on the basis of the measured S-parameter.  The differential-mode Z-parameter ZDD is calculated by using the calculated differential-mode S-parameter SDD.  The transimpedance characteristic ZT of the differential transimpedance amplifier (100) is calculated by using the calculated differential-mode Z-parameter ZDD.