Ravinder487
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Hi all,
I've designed preamp with CMFB(schematic attached).Its taking 20nS to get settle.I need to insert this preamp in a ADC working at 500MSPS.unity gain BW of preamp is 835MHz and gain is around 26V/V.Preamp is biased at 45uA.
Does the settling of this preamp is limited by BW or slewrate?How can I increase its speed?
In general, what(settling time or bandwidth) will limit settling time of any amplifier?Is there any rule of thumb relating these parameters?
I've designed preamp with CMFB(schematic attached).Its taking 20nS to get settle.I need to insert this preamp in a ADC working at 500MSPS.unity gain BW of preamp is 835MHz and gain is around 26V/V.Preamp is biased at 45uA.
Does the settling of this preamp is limited by BW or slewrate?How can I increase its speed?
In general, what(settling time or bandwidth) will limit settling time of any amplifier?Is there any rule of thumb relating these parameters?