[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 15 KB, 948x454, NeedHelp.png [View same] [iqdb] [saucenao] [google]
4968164 No.4968164 [Reply] [Original]

Could anyone out there explain this question to me? I can't find any material that can help me when asked about bandwidth in op amps. A formula or anything would be great thanks.

>> No.4968182
File: 12 KB, 500x500, 1339810952651.png [View same] [iqdb] [saucenao] [google]
4968182

Bumpin'

I don't think it's a difficult question. It's probably solved in one step.

>> No.4968188

>>4968164
it's pretty simple.

The gain bandwidth product is 1.5MHZ
the gain is 1x10^5

therefore:
10^5*B = 1.5 x 10^6
B = 15 hertz

the lesson here is that open loop op amps suck balls.

>> No.4968199
File: 10 KB, 493x402, 1339812673846.png [View same] [iqdb] [saucenao] [google]
4968199

>>4968188

Cheers mate.

Yeah I've been struggling with this stuff for a while now. I went into software engineering blissfully unaware that I'd be forced to complete some electrical engineering subjects as well.

>> No.4968200

>>4968199
The feeling is mutual for some of the ee folks at my college.

truth is, both fields are pretty necessary to each other. :3

>> No.4968208

As for ampli ops: -the entry intensity is zero
-if the ampli is ideal, V+=V-
-a real ampli has a positive and a negative saturation threshold, if the entry tension become higher than the former or lower than the latter, it can no longer be considered as linear
-an ampli op can generally be considered linear and ideal unless otherwise stated

>> No.4968212

>>4968208
cool story, brother. I can see you paid attention to the thread very well.