chungming
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Hi ~~ If I have a two stage single ended differential amp, and the input is rail to rail (has NMOS & PMOS as input stage), but output is cascode configuration (two nmos cascode & two pmos cascode). When simulation ICMR we often use unit gain configuration, connect Vin- to Vout so Vin- = Vout, then sweep Vin+. Vin can rail to rail, but Vout can’t … The ICMR will limit by output swing. How to simulation real input common mode range ?? Thanks !!
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