| 摘要 |
A slew rate enhancement circuit is disclosed for increasing a slew rate in a two stage CMOS amplifier. The slew rate enhancement circuit detects an input signal transition in the two stage CMOS amplifier. Depending on the polarity of the input signal transition the slew rate enhancement circuit turns on either (1) a first current source to charge a first compensation capacitor, or (2) a second current source to charge a second compensation capacitor. The slew rate enhancement circuit increases the slew rate by a factor of four to five and decreases the settling time of a voltage transition by a factor of three.
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