The circuit of Fig. 14.29 with and is realized with the technology in Table 1.5. Switches are NMOS devices with a gate voltage and the schematic’s “ground” voltage located above the opamp’s lower supply. Find the size of switches required to ensure a dc offset of less than 5 mV due to charge injection. If all switches are the same size, and allowing 5 time constants for complete settling, what is the resulting settling time of switched capacitor ?
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