[sdiy] CV input op-amp circuit

[Benjamin Tremblay]

Yah I was going to say the sure way to protect your  3.3v mcu is to power your op amp with no more than 3.3v

Benjamin Tremblay

> On Dec 4, 2020, at 2:13 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
> 
> Hi David,
> 
> It will, but if it’s for a microcontroller input, it doesn’t matter. It’s simpler to flip the ADC value in the firmware than add another op-amp to every CV input.
> 
> So, yes..but no!
> 
> Tom
> 
> ==================
>        Electric Druid
> Synth & Stompbox DIY
> ==================
> 
> 
> 
>> On 4 Dec 2020, at 19:01, David G Dixon <dixon at mail.ubc.ca> wrote:
>> 
>> It seems to me that your circuit will invert the CV, which is not what you want.
> 
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