Siglent SDS 1104X-E Sampling issue

[Moriambar]

Hello, beginner here.

I noticed that with two channels active the 1104x-e halves the sampling rate to 500M (and memory depth), although I thought that this would only happen with three or more active channels. What am I missing?Being a newbie sucks ass sometimes Firmware is updated to latest version.

Cheers.

[tautech]

Hello, beginner here.

I noticed that with two channels active the 1104x-e halves the sampling rate to 500M (and memory depth), although I thought that this would only happen with three or more active channels. What am I missing?Being a newbie sucks ass sometimes Firmware is updated to latest version.

Cheers.

When needing 2 channels at the max sampling rate and memory depth they each need to be used on each of the ADC's.
So any combo of the following:
1+3, 1+4, 2+3, 2+4.
Using any 3rd channel will halve the mem depth and sampling rate.

[Moriambar]

Hello, beginner here.

I noticed that with two channels active the 1104x-e halves the sampling rate to 500M (and memory depth), although I thought that this would only happen with three or more active channels. What am I missing?Being a newbie sucks ass sometimes Firmware is updated to latest version.

Cheers.

When needing 2 channels at the max sampling rate and memory depth they each need to be used on each of the ADC's.
So any combo of the following:
1+3, 1+4, 2+3, 2+4.
Using any 3rd channel will halve the mem depth and sampling rate.

Wow, thanks! I did not thin about this! I am happy I learned something!

Cheers

[tautech]

Hello, beginner here.

I noticed that with two channels active the 1104x-e halves the sampling rate to 500M (and memory depth), although I thought that this would only happen with three or more active channels. What am I missing?Being a newbie sucks ass sometimes Firmware is updated to latest version.

Cheers.

When needing 2 channels at the max sampling rate and memory depth they each need to be used on each of the ADC's.
So any combo of the following:
1+3, 1+4, 2+3, 2+4.
Using any 3rd channel will halve the mem depth and sampling rate.

Wow, thanks! I did not thin about this! I am happy I learned something!

Cheers

This is the standard setup with dual interleaved ADC DSO's. Now you know and aren't likely to forget. 
Enjoy.


Oh, and BTW, the memory is configured 14 Mpts times 2, that is, each ADC has 14 Mpts of memory support.

[Moriambar]

Yes indeed!

[rf-loop]

Hello, beginner here.

I noticed that with two channels active the 1104x-e halves the sampling rate to 500M (and memory depth), although I thought that this would only happen with three or more active channels. What am I missing?Being a newbie sucks ass sometimes Firmware is updated to latest version.

Cheers.

When needing 2 channels at the max sampling rate and memory depth they each need to be used on each of the ADC's.
So any combo of the following:
1+3, 1+4, 2+3, 2+4.
Using any 3rd channel will halve the mem depth and sampling rate.

Wow, thanks! I did not thin about this! I am happy I learned something!

Cheers