Supply considerations

[mscohen]

I am interested in using the AMP1 with a +70V single ended DC supply. What are the requirements - esp. for the 0V (Gnd) input? Or is a true split supply necessary? Thanks.

[Scratchy]

Ummmmmm I don't know what to say.....
You're inquiring about the AMP1 in the AMP5 - 10 forum?
What amp do you really have?

Have you looked at the amp overview to see the voltage and PS requirements of whatever AMP you are building?
http://41hz.com/main.aspx?pageID=124

There are no Tripath amps on this site that will operate at 70VDC single ended.
AMP1 uses a split PS +/- 35VDC max.

***If it was easy, everyone would be doing it***

[mscohen]

Thanks. Sorry to be in the wrong place(!). I was a bit careless here and will ask on the other forum. No, I didn't expect that this was an easy question. There are a number of "rail splitter" devices and solutions (e.g., the TI tle2426). Generally the IC solutions have liited power capability and need a complementary pair of bipolar transistors for current amplification. My need is quirky, because I have the +70V supply capacity available from other components in my instrument.