Rigol DS2072A vs DS2072A-S

• Rigol DS2072A vs DS2072A-S
  Posted by mrpackethead on 25 Oct, 2015 07:38
• Is there any difference in the hardware of the 2072A vs the 2072A-s Version... It seems there is, but I was'tn 100% certain..   
• #1 Reply
  Posted by Roeland_R on 26 Oct, 2015 21:24
• From Rigol website:
  
  The Rigol DS2072A is a multi-functional high performance digital oscilloscope. Standard features include - Sensitivity down to 500μV/div, record, replay & analysis functions, selectable 50Ω input impedance and 8" WVGA display with 256 grading levels. Furthermore, it possesses a variety of trigger functions, decoding functions, connectivity options, mathematical operations including FFT, automatic waveform measurement parameters with statistics, a pass / fail test and a built-in help system. A two channel 25MHz function / arbitrary waveform generator is included on '-S' models. The Rigol DS2072A is a versatile instrument that offers useful performance and features at a very competitive price.
• #2 Reply
  Posted by crispy_tofu on 26 Oct, 2015 22:47
• I wonder if it's just a software-configurable feature...
• #3 Reply
  Posted by mrpackethead on 27 Oct, 2015 07:31
• Quote from: crispy_tofu on 26 Oct, 2015 22:47

  I wonder if it's just a software-configurable feature...
  

  
  like everything else in Rigol Land. One unit, with software features.
  
  Does a 2072A have the output connectors on the back?
  
• #4 Reply
  Posted by donkey77 on 27 Oct, 2015 08:29
• I've got the -s version. I don't think the standard version has the extra 2 BNC connectors on the back or the source button to the left of the jog dial.
• #5 Reply
  Posted by tec5c on 27 Oct, 2015 08:40
• Isn't the only difference being that the '-S' model has a built in sig. gen.? Hence, same hardware...
  
  
• #6 Reply
  Posted by Ivan7enych on 27 Oct, 2015 09:51
• Check the teardown
  
  There's no sig gen output connectors and obviously no sig gen board.
• #7 Reply
  Posted by crispy_tofu on 27 Oct, 2015 09:56
• Not sure if there's any difference, but the one in the teardown is a DS2202 and not a DS2072...
• #8 Reply
  Posted by tec5c on 27 Oct, 2015 10:07
• It's only a bandwidth difference. 200meg vs 70meg
• #9 Reply
  Posted by crispy_tofu on 27 Oct, 2015 10:13
• Quote from: tec5c on 27 Oct, 2015 10:07

  It's only a bandwidth difference. 200meg vs 70meg
  

  Okay, so that means that it's most likely software-enabled.
  Which means that the DS2202 is the same as the DS2072
  And the DS2202 doesn't have a signal analyser
  Therefore, there is a difference in the hardware between the DS2072A and the DS2072A-S 
• #10 Reply
  Posted by Ivan7enych on 27 Oct, 2015 10:21
• Quote from: crispy_tofu on 27 Oct, 2015 09:56

  Not sure if there's any difference, but the one in the teardown is a DS2202 and not a DS2072...
  

  DS2202 and DS2072 are hardware identical
  DS2072A has 50om termination on inputs (small hardware change)
  
  I think there's no software key to turn on signal gen or logic analyzer on DS2072A model, I think the firmware checks if hardware is present, and than uses it and shows additional menus.