AVR-Chat

--- In AVR-Chat@yahoogroups.com, "Chuck Hackett" <egroupscdh@W...> 
wrote:
> I'm using a 741 op-amp to condition an input signal.  It's setup 
like a
> threshold detector to detect a voltage level between .1 and .6 volts
> (adjustable).  It's my understanding (and experience) that the 741 
can not
> operate that close to one of its rail voltages so I need to supply 
it with a
> 
> Regards,
> 
> Chuck Hackett
Hi,
Someone else replied suggesting using the TLC272 (dual) or 274 
(quad). These work well for what you would need. There is also a 
single version of the same TLC271. They do a great job close to zero 
V. Not so good close to VCC.
They are reasonably cheap and certainly work better than some of the 
other variants mentioned.
Rgds
Stefan