Obtaining PSRR for a CMOS differential amplifier with active load

for three modes: ۲۷ ºC temperature and TT process corner, -۴۰ ºC temperature and FF process, ۸۵ ºC temperature and SS process corner, we get the parameters for this amplifier in ۹۰ nm CMOS technology. The differential amplifier is one of the most important circuit inventions and dates back to the time of electronic lamps. Differential operation is one of the main options in analog and mixed-signal circuits due to its many advantages. An amplifier is an electronic device or circuit used to increase the size of the signal applied to its input. In this simulation, we use the Hspice program, this circuit will have ۶ MOSFETs, and as a result, there will be ۱۲ MOSFET channel lengths and thicknesses. In this simulation, We will check PSRR, in three cases with different temperatures. Likewise, Excel and MATLAB programs were used to obtain more accurate values and graph shapes. With HSPICE software, analog circuits can be fully checked. PSRR stands for Power Supply Rejection Ratio, which measures the amplifier's ability to reject changes or fluctuations in the power supply voltage.

کلیدواژه ها:

PSRR ، Differential Amplifier ، Hspice ، CMOS.