[sdiy] 2164 outputs

[Tim Ressel]

Nice idea, but I don't have that available. The problem is the VCA stage 
as shown inverts. Not usually an issue for audio but I am using it as a 
dc vca for control voltages.

--tr



On 8/25/2017 1:02 PM, Tom Wiltshire wrote:
> The best way to save an op-amp in this situation is to feed the output into another current input, like another 2164 VCA, or a subsequent mixer stage (no need to go VCA->I2V->mixer) or etc etc
> It’s a change in thinking from voltage to current, but it works just the same!
>
> HTH,
> Tom
>
> ==================
>         Electric Druid
> Synth & Stompbox DIY
> ==================
>
>> On 25 Aug 2017, at 19:37, Tim Ressel <timr at circuitabbey.com> wrote:
>>
>> Hi,
>>
>> So the datasheet for the 2164 shows the output always routed to an inverting opamp configured as a current to voltage convertor. Is it possible to configure the 2164 output with a resistor to ground and a non-inverting opamp buffer? I am trying to have an opamp package.
>>
>> Thanks!
>>
>>
>> -- 
>> --Tim Ressel
>> Circuit Abbey
>> timr at circuitabbey.com
>>
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>

-- 
--Tim Ressel
Circuit Abbey
timr at circuitabbey.com