Products > Test Equipment
Siglent SDG1032 as bad as rigol DG812?
eTobey:
--- Quote from: rf-loop on May 19, 2024, 02:04:22 pm ---
--- Quote from: eTobey on May 19, 2024, 01:28:27 pm ---
--- Quote from: rf-loop on May 19, 2024, 12:36:28 pm ---But naturally my predictable rest of lifetime is not enough for test every possible setup combinations even once per setup. ;)
--- End quote ---
If you would choose a 100mHz square, and a 99% duty, you are more likely to hit that high level right at the beginning of the rest of your life.
On that picture it looks like you hit that low level... ::)
--- End quote ---
That one magpie's nest type of signal connection that you recently brought up when you criticized the generator's frequency response. I will say one more and one last time. Most of the problems you'll encounter with oscilloscopes or generators are between them and the chair you sit. Next time I might say it less nicely.
Here is 100mHz and 99% Duty. And again hard PowOFF.
And yes, signal is 20Vpp and other is generator 10V DC out (also for trig)
--- End quote ---
If you set up values, that are far away from those that showed the issue, and want to compare, you also have a problem between the chair and the screen.
TurboTom:
If you want to be sure that you won't overload your digital circuitry's input (Microprocessor?), why don't you set up a special test lead with a unidirectional protection diode installed in the connector closest to the DUT? If the threshold voltage in the conduction direction is still too high, you may want to use a protection (zener) diode with a small signal schottky diode in parallel.
If you need something more versatile, set up two half-way powerful opamp followers, wired to two pots at their inputs and two clamping diodes at their outputs, connected to the signal - this, done properly and capacitively decoupled, will enable you to properly clamp any input signal asymmetrically in any desired way. It should also protect the DUT input from ESD to some degree.
P.S. I never felt the need to use such a contraption with any of my AWGs (DG811++, DG4000+, SDG6000+, HDG2000, MSO2000S). But I made it a habit to use a scope to look at the AWG output signal before I connect it to a sensitive input.
mawyatt:
--- Quote from: TurboTom on May 19, 2024, 03:38:33 pm ---But I made it a habit to use a scope to look at the AWG output signal before I connect it to a sensitive input.
--- End quote ---
The wisdom of experience :-+
If one is concerned about a power mains glitch/outage, then a UPS is in proper order!!
Edit: BTW the same goes for the Power Supply for sensitive circuits!!
Best,
rf-loop:
--- Quote from: eTobey on May 19, 2024, 03:00:43 pm ---
--- Quote from: rf-loop on May 19, 2024, 02:04:22 pm ---
--- Quote from: eTobey on May 19, 2024, 01:28:27 pm ---
--- Quote from: rf-loop on May 19, 2024, 12:36:28 pm ---But naturally my predictable rest of lifetime is not enough for test every possible setup combinations even once per setup. ;)
--- End quote ---
If you would choose a 100mHz square, and a 99% duty, you are more likely to hit that high level right at the beginning of the rest of your life.
On that picture it looks like you hit that low level... ::)
--- End quote ---
That one magpie's nest type of signal connection that you recently brought up when you criticized the generator's frequency response. I will say one more and one last time. Most of the problems you'll encounter with oscilloscopes or generators are between them and the chair you sit. Next time I might say it less nicely.
Here is 100mHz and 99% Duty. And again hard PowOFF.
And yes, signal is 20Vpp and other is generator 10V DC out (also for trig)
--- End quote ---
If you set up values, that are far away from those that showed the issue, and want to compare, you also have a problem between the chair and the screen.
--- End quote ---
|O YOU ask'd this (if you remember)! And you get it.
And it still didn't show the problem you so desperately hoped for.
eTobey:
--- Quote from: rf-loop on May 19, 2024, 04:52:32 pm ---
--- Quote from: eTobey on May 19, 2024, 03:00:43 pm ---
--- Quote from: rf-loop on May 19, 2024, 02:04:22 pm ---
--- Quote from: eTobey on May 19, 2024, 01:28:27 pm ---
--- Quote from: rf-loop on May 19, 2024, 12:36:28 pm ---But naturally my predictable rest of lifetime is not enough for test every possible setup combinations even once per setup. ;)
--- End quote ---
If you would choose a 100mHz square, and a 99% duty, you are more likely to hit that high level right at the beginning of the rest of your life.
On that picture it looks like you hit that low level... ::)
--- End quote ---
That one magpie's nest type of signal connection that you recently brought up when you criticized the generator's frequency response. I will say one more and one last time. Most of the problems you'll encounter with oscilloscopes or generators are between them and the chair you sit. Next time I might say it less nicely.
Here is 100mHz and 99% Duty. And again hard PowOFF.
And yes, signal is 20Vpp and other is generator 10V DC out (also for trig)
--- End quote ---
If you set up values, that are far away from those that showed the issue, and want to compare, you also have a problem between the chair and the screen.
--- End quote ---
|O YOU ask'd this (if you remember)! And you get it.
And it still didn't show the problem you so desperately hoped for.
--- End quote ---
Of course it did not mean those values that i told you. |O
I talked about spikes that went up to ~5V but you already set a level of 10V! :palm:
Are you trying to hide the issue, or are you trying to make me look bad?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version