Hello @Akash Levy could you please give some suggestions regarding the design of a sense amplifier for ReRAM read operations involving multiple bits read within a 2x2 array, as well as the determination or calculation of voltage references for sense amplifier .

Yes please look at the RRAM guide I sent earlier. I will see if I can find it and link it again

Thank you @Akash Levy i have read that but I am confused for reference voltage how to define for multiple bits per cell for reading so I am looking more information to understand and read how to define voltage references .

There's lots of ways you can do reference voltages/resistors. I'm not too familiar with the best way to do voltage mode sensing, @Luke Upton might know. For current mode, you would use reference resistors and you can use something like R2R ladder (there are lots of good ways to do it). https://en.wikipedia.org/wiki/Resistor_ladder I'd recommend picking up an analog design textbook and/or taking an analog design course for this. Building DACs/ADCs are usually a core concept

Thank you one of the other way I saw is the circuit I have attached in the picture. I have concern with the values of the voltage for references . @Luke Upton it would be great if could give suggestions. For multiple bits what would be the voltage values for reference in sense amp for that do I need make simulation and get the set points then calculate and set the values of reference voltage ?