[time-nuts] Re: dual supplies Re: Re: DIY Low offset Phase Noise Analyzer (Erik Kaashoek)

[glenlist]

I've ALWAYS used an op-amp to nail down the half rail supply, I never 
use the two resistors and cap idea directly  unless the whole thing is 
quite basic....

Just don't put bulk capacitance on the output !

like I have seen in some bad designs. ROFL.

Some op-amps are better at this than others- IE dead zones in the 
source-sink changeover curve.



On 11/07/2022 3:14 am, Lux, Jim via time-nuts wrote:
> On 7/10/22 9:07 AM, Bob kb8tq via time-nuts wrote:
>> Hi
>>
>> Yes it is a pain to implement dual supplies. I ponder that issue 
>> every time
>> I build one of these setups. I’ve