futurewave
New Member
I figure out that the opamps in my circuit get very hot, The circuit is simple : 4 unity gain buffer using TL074 (-in=>out). The circuit has its normal electrical function but when I touch the chip surface I can feel a high temperature that is not normal to me. I have several instances of the same design on the PCB with the same behavior.
It is really strange because I moved my design on bread-board using DIP version of TL074 without any heat problem. The only difference now is that the SOIC version of TL074 is soldered on a well grounded PCB! I use +/-12 v on the rails + 100nF cermic caps close to the chip power pins.
Any difference between the DIP and SMD package of TL074?
Any Idea about the high temperature?
Tnx
It is really strange because I moved my design on bread-board using DIP version of TL074 without any heat problem. The only difference now is that the SOIC version of TL074 is soldered on a well grounded PCB! I use +/-12 v on the rails + 100nF cermic caps close to the chip power pins.
Any difference between the DIP and SMD package of TL074?
Any Idea about the high temperature?
Tnx