New FET-input amplifiers, like the AD820 family of amplifiers, incorporate design improvements that prevent output voltage phase reversal for signals within the rated supply voltage range.

• 新型的FET输入管放大器(如AD820系列放大器)，在设计上做了改善，对于额定电源电压范围之内的信号，能够防止输出电压相位反转。