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Single Ended Switched Capacitor Opamp to Differential Conversion (Read 555 times)
repah
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Single Ended Switched Capacitor Opamp to Differential Conversion
Nov 28th, 2018, 4:31pm
 
Hello,

I designed a single ended opamp sample/hold switched capacitor amplifier with sample capacitors and switches.

I want to convert it to a differential opamp.

What do I do to the current, the sampling caps, size of switches, load capacitance ? Can I just scale these from single ended design ?

Also, add Common Mode Feedback. Is this correct ?

Is this correct ? Did I forget anything ?

Thank you.
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repah
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Re: Single Ended Switched Capacitor Opamp to Differential Conversion
Reply #1 - Nov 28th, 2018, 4:55pm
 
This is the circuit I want to make differential.

See attached.
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