Calculation of PSSR in 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. The simulation-based method utilizes tools like HSPICE to perform DC sweep simulations, monitor output voltages, calculate gains, and ultimately determine PSSR. This circuit will have ۶ MOSFETs and as a result, ۱۲ MOSFET channel lengths and thicknesses. In this simulation, we investigated PSSR in three modes with different temperatures. Likewise, Excel and MATLAB programs were used to obtain more accurate values and graph shapes. Power Supply Rejection Ratio (PSSR) is a critical parameter in CMOS differential amplifiers with active loads, signifying the amplifier's resilience against power supply variations affecting the output signal. This article delves into the calculation of PSSR in these circuits.

کلیدواژه ها:

PSSR ، Differential Amplifier ، Hspice ، CMOS.