Sa20.4: a ±2.45v-swing Cmos Telescopic Operational Amplifier

@inproceedings{Gulati1998Sa204A,
  title={Sa20.4: a ±2.45v-swing Cmos Telescopic Operational Amplifier},
  author={Kush Gulati and H-S. Lee},
  year={1998}
}
A telescopic cascode opamp typically has a higher frequency capability and consumes less power than other topologies. The disadvantage of a telescopic opamp is severely limited output swing. In a conventional telescopic opamp shown in Figure 1, all transistors are biased in the saturation region. Transistors M1-M2, M7-M8 and the tail current source M9 must have at least Vds,sat to offer a good common-mode rejection (CMRR). To allow for process and temperature variations, a small safety margin… CONTINUE READING
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