ADC on a Key-chain

John Boyd wanted learn more about ADCs, so he designed this 4-bit pipelined residue amplifier ADC using discrete components:


ADC on a Key-chain

The residue amplifier pipeline ADC consists of one key block: the residue amplifier. These residue amplifier blocks are then connected in series, forming a pipeline, hence the name.


To design this kind of ADC, I just used some opamp logic to make a residue amplifier and then cascaded four of them together to make a 4 bit ADC.


The design files are available on Github:


ADC on a Key-chain

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s