[sdiy] Outputs grounded! Re: SSI2164 datasheet updated

Mattias Rickardsson mr at analogue.org
Sat Aug 11 22:08:09 CEST 2018

Den lör 11 aug. 2018 21:43KD KD <pic24hj at gmail.com> skrev:

> > The LM13700's OTA outputs are current outputs too and should ideally go
> > into virtual grounds for best performance, although not all popular
> > LM13700 circuits do that.  Its buffer outputs are voltage outputs and
> > should be left open if not used.
> LM13700 im talking about the OTA output not the bufferoutput.
> So the 2164 actually have worser compliance then a LM13700?

Yes, it's actually much worse. The 2164 output is *only* for connection to
a virtual ground op-amp input, not for hanging a resistor towards ground
(OTA-style) and get a voltage signal at the output.

Ok ,so now DIXON says they left thousands outputs unconnected with no
> problem!
> I have to take him for his words really.

I just watched a video shot by the driver of a car at 190 km/h on Autobahn.
He also had no problem, so I have to assume it's safe!  (-:

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