Other Parts Discussed in Thread: UA741 , TLV2470 , TLE2426 Hello all,
I'm designing a DC power supply and am currently prototyping with a UA741 op amp. I put together a variable voltage follower circuit, with the op amp, in hopes of creating constant voltage…
Other Parts Discussed in Thread: UA741 Hi...
This is Surender. I am using UA741 Op amp in our pmu application. Even-though the i/p is ZERO I am getting i/p offset voltage and o/p as 1.81V and 1.81V respectively. I applied different voltages at the i/p…
Thomas,
When the LM675 is putting out 6.3 Vrms into a 1 ohm resistor we need almost 40 Watts across that resistor which overheats both the 5W resistor and the LM675 supplying its voltage.
For noninverting UA741 Op Amp
P RMS
P RMS
P RMS …
To
Art Kay
Respected Sir
I am a MTech student. I read your presentation on noise measurement. I am doing similar kind of noise measurement. My task is to measure 1/f noise of various opamps. So I started with uA741 opamp. I followed your steps…
Hello Suresh,
LM148 does not have a symmetric VOM. LM148 claims to have characteristics similar to uA741 that also has an asymmetric VOM. Where in the data sheet does it claim sysmetric?
Would you like me to suggest a different QML device that has a more…
Other Parts Discussed in Thread: UA741 Hi,
I am performing some basic tests to the uA741 op-amp and I tried to do the continuity test to check for protection diodes, but my results showed that there is no protection.
Would you please tell me if this particular…
Itoh-san,
LM741 is similar schematic but different process. Nevertheless the uA741 noise should be close to what should be expected from LM741.
On these very old designs, the thermal noise is predictable (40nV/root Hz) and the 1/f noise can vary device…
Part Number: OPA211 Other Parts Discussed in Thread: UA741 , Hi there,
I was using OPA211ADIR for some DC applications, but found it was not working. So I tested it with a simple circuit, see attached. It seems that there is ~0.3mA current leaking from…
Hi Carlo,
The functional block diagrams shown in OP07C/OP07D Fig. 9.2 and UA741 Fig. 7.2 are the same; however, the diagrams are general purpose in nature and don't necessarily show all the circuit details. Certainly, the OP07C/OP07D much higher electrical…