Experimental results show that the device can precisely measure many parameters of IOA, such as input offset voltage, input offset current, open loop differential AC voltage gain and AC common mode rejection ratio. 实验结果表明该测试仪能准确测量运算放大器的输入失调电压、输入失调电流、交流差模开环电压增益和交流共模抑制比等参数。