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Siglent SDS1104X-E In-Depth Review

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Performa01:

--- Quote from: tautech on February 18, 2018, 06:55:28 am ---Dots or vectors ?

--- End quote ---

Vectors!

This is what it looks like with dots display:


SDS1104X-E_Noise_1us_500uV_BW20M_Dots

nctnico:

--- Quote from: maxwell3e10 on February 18, 2018, 06:02:15 am ---On many scopes the 1 mV/div scale is BW limited by default to 20 MHz, so for fair comparison it would be good to know the noise level on 20 MHz BW setting.

--- End quote ---
Which ones? The only scope I owned which switched the 20MHz BW limit on at 1mV/div was a Siglent SDS2000 series.
However comparing with the 20MHz bandwidth enabled does give a good comparison because more bandwidth usually means more noise.

rf-loop:

--- Quote from: maxwell3e10 on February 18, 2018, 12:44:47 am ---Thanks, Performa01, for a very detailed review. I am trying to figure out the input noise of the scope from your data, section 3 of the review.

When I look at figure on page 64 I would estimate that +/-2 sigma level is about 1 division, so the RMS noise is 125 uV. When I look at RMS noise on the plot on page 67, 16 LSB corresponds to 16*0.5mV*10/250 =  320 uV.

I am wondering if the RMS noise estimate on page 67 comes from the RMS measurement on the scope? In that case it can include the offset as well. It would be interesting to find the standard deviation of the data with shortened input.

--- End quote ---

Here is added SDS1104X-E noise (bit explanation and 4 images)
https://www.eevblog.com/forum/testgear/siglent-sds1204x-e-released-for-domestic-markets-in-china/msg1290409/#msg1290409
Also explanation why RMS is not right for noise with more or less DC offset (non zero mean)

Performa01:
Here comes an in-depth review of the optional SAG1021 AWG.

It’s a bit ridiculous, but I had to split the review for this humble little AWG into four parts (three would have worked too, but I didn’t want to tear the sine wave chapter apart). So here are the first two parts:

SAG1021 Review 1-8
- Operation
- Zero Adjust
- Frequency Accuracy


SAG1021 Review 8-25
- Waveforms
-- Sine
--- Amplitude Accuracy
--- Harmonic Distortion
--- Phase Noise

Performa01:
Here are the second two parts of the SAG1021 AWG review:

SAG1021 Review 25-32
- Waveforms
-- Square
-- Ramp
-- Pulse
-- Noise
-- DC

SAG1021 Review 32-46
- Arbitrary Waveforms
-- Internal
-- External

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