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Voltage Spike
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I'm reading the TI-precision lab of opamp. And I'm confused with the calculation of the BW_CL (bandwidth of th close-loop).

I'm prettry sure the BW_CL= GBPW/GAIN_CL. This is very clear refer to enter link description here

What I cannot understand is why can we find/use the close-loop gain on the bode plot of "Open-loop gain vs frequency" ?

As I see I get the bandwidth when open-loop gain = 40dB !?!?

enter image description here

I'm reading the TI-precision lab of opamp. And I'm confused with the calculation of the BW_CL (bandwidth of th close-loop).

I'm prettry sure the BW_CL= GBPW/GAIN_CL. This is very clear refer to enter link description here

What I cannot understand is why can we find/use the close-loop gain on the bode plot of "Open-loop gain vs frequency" ?

enter image description here

I'm reading the TI-precision lab of opamp. And I'm confused with the calculation of the BW_CL (bandwidth of th close-loop).

I'm prettry sure the BW_CL= GBPW/GAIN_CL. This is very clear refer to enter link description here

What I cannot understand is why can we find/use the close-loop gain on the bode plot of "Open-loop gain vs frequency" ?

As I see I get the bandwidth when open-loop gain = 40dB !?!?

enter image description here

Source Link
FNJU
  • 43
  • 1
  • 5

Gain-bandwidth product and open loop/closed loop gain

I'm reading the TI-precision lab of opamp. And I'm confused with the calculation of the BW_CL (bandwidth of th close-loop).

I'm prettry sure the BW_CL= GBPW/GAIN_CL. This is very clear refer to enter link description here

What I cannot understand is why can we find/use the close-loop gain on the bode plot of "Open-loop gain vs frequency" ?

enter image description here