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A. Internal high voltage management:
a. Charge pump: positive and negative
b. Regulator
c. Bias generator (voltage bias: bandgap reference, tyipcal; current bias: current mirror)
d. Voltage boost (for read operation)
e. Current limitter (avoiding latch-up)
B. HV switches -- for...
Re: convential Bandgap voltage ref. , need transient analysi
Ramping the vdd power for transient analysis is crucial for the start-up circuit.
Check the simulations for all the corner cases. Be aware of any parasitics you might
lost in the netlist for post-layout simulation..
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