kkokkogom
Newbie level 4
op-amp configuration
Hello
now I'm making an OPAMP
I have question about bias voltage
The Opamp what I made is very simple. 2stage
Vdd is 1v.
I think it works well.
but I got a ploblem with this schematic
(plz refer my attatchment)
I didn't work at all.
(V24) is signal and (V23) is biased at 0.5v
so I changed VDD voltage 1V ===> 0.5V
GND from 0V ===> -0.5v
and finally It worked.
I don't know why this happen.
could you explain to me?
actually I want to use 1V as VDD, 0V as GND. Isn't it possible?
Hello
now I'm making an OPAMP
I have question about bias voltage
The Opamp what I made is very simple. 2stage
Vdd is 1v.
I think it works well.
but I got a ploblem with this schematic
(plz refer my attatchment)
I didn't work at all.
(V24) is signal and (V23) is biased at 0.5v
so I changed VDD voltage 1V ===> 0.5V
GND from 0V ===> -0.5v
and finally It worked.
I don't know why this happen.
could you explain to me?
actually I want to use 1V as VDD, 0V as GND. Isn't it possible?