Op-‐Amp internal circuits Bipolar (BJT) or MOSFET ? N-‐ or P-‐Input for Op-‐Amp ? Comparator, Opamp, OTA ? Comparator, Opamp, OTA ? Basic use of OpAmps Comparator with N-‐device as input Simple 1-‐stage CMOS -‐ OTA g – compare BJT / MOSFET m 2-‐stage MOSFET – Comparator
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