[sdiy] TLC272 trouble

[Ingo Debus]

Am 13.11.2011 um 16:54 schrieb dan snazelle:

> So i tried one as the buffer in a R2R circuit (taking the out of the r2r ladder into the +input and the - input to ground)

- input to ground? You get no negative feedback this way. Do you want to operate it as a comparator?

Anyway this would not burn the chip. I have used TLC272 many times in single supply designs and it worked well. What is your supply voltage? The TLC272 has a maximum supply voltage of 16 volts (unlike the TL072).

Ingo