Electronics Explorer - scope input sensitivity

[Paul.1949]

Hello,

I have found that the Analog Discovery 2 scope has input sensitivity scales between 500uV to 5V/div.  What is the specification of the scope included in the Electronics Explorer board?

Thanks

Paul

[JColvin]

Hi @Paul.1949,

I have moved your question to a more appropriate section of the Forum where the engineer best suited to help you will be able to see and respond to your question (I don't know the answer).

Thanks,
JColvin

[JColvin]

HI @Paul.1949,

I apologize for the long delay; the engineer who is best able to help you, @attila, is out of the office until this coming Monday, Feb 12 (which I didn't realize when I initially moved your question). Looking at the options in the WaveForms software, it appears you can set the range from 100 uV/div to 4V/div when set to a 1x attenuation, but I'm not certain if that directly correlates with input sensitivity since the options in WaveForms for the AD2 also exceed the quoted values from the reference manual.

Again, I apologize for the delay and the confusion.

Thank you,
JColvin

[attila]

Hi @Paul.1949

You can find such informations in the WaveForms application Help tab.

Electronics Explorer

4. Oscilloscope

The Oscilloscope has four channels with AC and DC input.

Specifications:

• The input bandwidth is 100 MHz and the ADC frequency is 40 MSps.
• The DC inputs have an impedance of 9.3 MOhms in parallel with 10 pF.
• The AC inputs have 100 nF filter capacitor.
• The input voltage is from -20 V to 20 V.
• The ADC is 40 MHz, 10 bits, with adjustable resolution from 800 uV to 40 mV.
• The offset is adjustable from -20 V to 20 V.

Adding that the EExplorer board scope inputs have about 60 range/resolution steps.

 

Analog Discovery 2

4. Oscilloscope

The Analog Discovery 2 has two differential oscilloscope input channels.

Specifications:

	Low gain	High gain
Range	> 500 mV/div	<= 500 mV/div
Differential input voltage	N/A	-5 V to +5 V
Common mode input voltage	N/A	-20 V to +5 V
Positive and negative input voltage to GND	±25 V	N/A

• The 0.5dB input bandwidth is 10 MHz.
• The positive and negative inputs have an impedance to ground of 1 MOhm in parallel with 24 pF.
• The ADC is 14 bits and 100 MSps, Analog Devices AD9648.
• The absolute maximum input voltage is ±50 V.
• The buffer can be up to 16 kS (default is 8 kS) on two channels.
• The inputs have two gain stages, with ~3 mV and ~300 uV resolution. See the table below:
• For more information visit the resource center

[Paul.1949]

On ‎12‎/‎02‎/‎2018 at 2:50 PM, attila said:

Hi @Paul.1949

You can find such informations in the WaveForms application Help tab.

Electronics Explorer

4. Oscilloscope

The Oscilloscope has four channels with AC and DC input.

Specifications:

• The input bandwidth is 100 MHz and the ADC frequency is 40 MSps.
• The DC inputs have an impedance of 9.3 MOhms in parallel with 10 pF.
• The AC inputs have 100 nF filter capacitor.
• The input voltage is from -20 V to 20 V.
• The ADC is 40 MHz, 10 bits, with adjustable resolution from 800 uV to 40 mV.
• The offset is adjustable from -20 V to 20 V.

Adding that the EExplorer board scope inputs have about 60 range/resolution steps.

 

Analog Discovery 2

4. Oscilloscope

The Analog Discovery 2 has two differential oscilloscope input channels.

Specifications:

	Low gain	High gain
Range	> 500 mV/div	<= 500 mV/div
Differential input voltage	N/A	-5 V to +5 V
Common mode input voltage	N/A	-20 V to +5 V
Positive and negative input voltage to GND	±25 V	N/A

• The 0.5dB input bandwidth is 10 MHz.
• The positive and negative inputs have an impedance to ground of 1 MOhm in parallel with 24 pF.
• The ADC is 14 bits and 100 MSps, Analog Devices AD9648.
• The absolute maximum input voltage is ±50 V.
• The buffer can be up to 16 kS (default is 8 kS) on two channels.
• The inputs have two gain stages, with ~3 mV and ~300 uV resolution. See the table below:
• For more information visit the resource center

Thank you both for your replies and the information provided. I have decided to purchase an Electronics Explorer kit.

Regards

Paul