[sdiy] CV input op-amp circuit
btremblay at me.com
Fri Dec 4 20:19:44 CET 2020
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
> 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!
> 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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