Nice Video Prof Paul. That Ti Op-amp I assume if you put it in a quality circuit with a good signal it will provide a Tendering Loving Care output (ugh I know!!) just in case; the part number starts with TLC.....
This is a GREAT video on a relevant topic. Thank you for putting this out and showing a demo. To restate an important point @ 3:35 for the newbies: it will continue to amplify with time but not with voltage - it is limited by the rail voltage (assuming you're using a rail-to-rail OpAmp...otherwise it's even less, as Paul stated). You can never exceed the voltage supply rail even though the typical OpAmp gain is typically huge (~ 10^5 to 10^6).
Paul, if possible, I'd like to see a tutorial on how to do the negative voltage rail design sometime. I love single supply, but it gets a little crazy if you have subsequent amplifer stages and buffers with all of the decoupling caps/reinjections in the mix. I've used a switching IC to achieve that before and it works okay-ish, but would love to know more.
That's far clearer than trying to figure it out from a spec sheet.. Many thanks for passing on your knowledge of this, and other electrofile hobbyist topics. I'll also support NGinuity request for the negative voltage rail design at some future date.
You could also use the LM358, it is designed to work with single rail supplies. It is tied to ground so only have to be careful of the upper limit on signal.
Yep. I need to check out the op amp videos, I know a lilbit, when i first learned of op amps, when it came to the workings, my brain just shut off, when I heard op amp!!!! I need to learn a bit more
On a side note: I created an account with PCBway and pretty much have the board ready to send to them. Just need to do a QC of the circuit and create the gerber files.
Nice vid Paul, but, oh gosh, before the ubiquitous 741 was the 709. That rudimental forerunner of the 741, introduced in the 60's, had to be externally adjusted using a pot to eliminate the offset between inputs. We've come a long way in op-amp technology since those days. But even in those days it was still exciting to experiment with op amps. I digress.
Hello, I have a question for example how can you sample sine wave with Arduino if you have operational amplifier with single supply (5V) and DC offset 2.5V (voltage divider on non inverted terminal) inverted configuration, where can you put GND of Arduino ?? If i put GND of Arduino on negative terminal of power supply then there will be negative voltage and i want to avoid that. Or do you have another solution to shift whole signal up on pozitive voltage.
Great lession about OpAmps. I've learned some new things. Keep it up! I really wonder how you get your topics and decide which topic you will post next...?
Nice Video Prof Paul. That Ti Op-amp I assume if you put it in a quality circuit with a good signal it will provide a Tendering Loving Care output (ugh I know!!) just in case; the part number starts with TLC.....
This is a GREAT video on a relevant topic. Thank you for putting this out and showing a demo.
To restate an important point @ 3:35 for the newbies: it will continue to amplify with time but not with voltage - it is limited by the rail voltage (assuming you're using a rail-to-rail OpAmp...otherwise it's even less, as Paul stated). You can never exceed the voltage supply rail even though the typical OpAmp gain is typically huge (~ 10^5 to 10^6).
Thanks Mike
2:07: Headroom.....Max Headroom.
Great information Paul. Thanks for the lesson.
I loved Max Headroom. The 80's were great
Paul, if possible, I'd like to see a tutorial on how to do the negative voltage rail design sometime. I love single supply, but it gets a little crazy if you have subsequent amplifer stages and buffers with all of the decoupling caps/reinjections in the mix. I've used a switching IC to achieve that before and it works okay-ish, but would love to know more.
That's far clearer than trying to figure it out from a spec sheet.. Many thanks for passing on your knowledge of this, and other electrofile hobbyist topics. I'll also support NGinuity
request for the negative voltage rail design at some future date.
You could also use the LM358, it is designed to work with single rail supplies. It is tied to ground so only have to be careful of the upper limit on signal.
I love it when you get in Professor mode. 😁 I've never needed an opamp in my circuits but the information is priceless. Thanks for the video!
Great!! you're the only one who explained it in a fantastic way... Thanks for explaining it ... Take my love from BD
Yep. I need to check out the op amp videos, I know a lilbit, when i first learned of op amps, when it came to the workings, my brain just shut off, when I heard op amp!!!! I need to learn a bit more
You should setup an output monitor so you can see when you are not on the camera.
LOve this video. I've never used a single supply op-amp before this will definitely help me, thanks, Paul.
Nice lesson once again.
On a side note: I created an account with PCBway and pretty much have the board ready to send to them. Just need to do a QC of the circuit and create the gerber files.
Nice vid Paul, but, oh gosh, before the ubiquitous 741 was the 709. That rudimental forerunner of the 741, introduced in the 60's, had to be externally adjusted using a pot to eliminate the offset between inputs. We've come a long way in op-amp technology since those days. But even in those days it was still exciting to experiment with op amps. I digress.
Great video Paul. I need to up my op-amp game so this was great reminder of the basics.
Glad you liked it.
nice video paul!
I appears like there isn't enough Amps to do anything with it? What can be done with this? Examples?
Hello, I have a question for example how can you sample sine wave with Arduino if you have operational amplifier with single supply (5V) and DC offset 2.5V (voltage divider on non inverted terminal) inverted configuration, where can you put GND of Arduino ?? If i put GND of Arduino on negative terminal of power supply then there will be negative voltage and i want to avoid that. Or do you have another solution to shift whole signal up on pozitive voltage.
A subject right up my alley! Nice one👍
Fantastic, dude! Thanks a lot! 😃
Slight error at @ 10:00, 1.2V is 24% of 5V not 31%, i think you divided by 3.8 instead of 5, easy enough mistake to make.
Very nice explanation, Paul. I do have a question, what circuit would you use this in?
Great lession about OpAmps. I've learned some new things. Keep it up!
I really wonder how you get your topics and decide which topic you will post next...?
I dont have a routine. Sometimes I read something or see something or it just comes to me.
@@learnelectronics So, are you open for topics if your viewers would make suggestions?
Hi Prof, so how do we measure the SNR for our opamp circuit?
Well done Paul❤
I think you are missing the f (frequency) in your slew rate equation. (2*pi*f*Vpk)
Excellent. Where were you when I was at school?
Good stuff. Keep em coming
OOps I forgot to ask. Do you know if there is anyway to mention you or learnelectronics so you get some credit with PCBway??
I dont have any codes or anything. Maybe if there's a noted or special instructions you could put sonething.
One more great video, has you like multimeters I was wondering if you would do a review and teardown of a Voltcraft VC980 Thanks Joe
I'll see if I can get one. Thanks for the suggestion.
learnelectronics Hi I’m sorry I meant the VC890
Very nice!
so you run a relaxation oscillator with an OpAmp whats normaly a job for a comparator?!
Every video nice
Thank you sir, please explain about class d amp
Thank you sir, please explain about class d amp