Single chip PI

[6666]

Found this on the net, couple of versions of a single chip PI, interesting concept.

[homefire]

Where is the Single Chip Schematic?

[6666]

In post #1, based around single tl074

[homefire]

Confused here. I see three IC.

[WM6]

What about this one:

[bernte_one]

https://translate.googleusercontent....WLj3Xsfl9Q8rNw

[6666]

https://translate.googleusercontent....WLj3Xsfl9Q8rNw

Thanks.

[BKY1337]

Has anybody tested this circuit? We need to make a working Layout.
Looks a lot like the pirat.

[chevesne]

We need to make a working Layout.

All you need is here.

lay

[BKY1337]

Thanks!

[reptooyep]

Hi,
I was looking at a smd catalog when i found few lines about "DTR" which means
Digital TRansistor. They have built in resistors. Maybe it would be usefull
to use them in a "single chip" project to reduce the componment number..
Does anyone knows somdthing about it ?

[Teleno]

A true one-chip solution can be built around an ATtiny85 or ATtiny84 MCU that have an 20x analog amplifier connected to an ADC and timers for configuring the pulses. A digital integrator can be easily implemented in software to provide more gain and noise reduction. A beeper can be implemented with the other timer.

[BKY1337]

I have a LM324 , can i use them as replacement for the TL074?