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How long will the DS2000A Capture a Signal

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Posted on: December 16th, 2020 by Doug Lovell

To determine how long an oscilloscope will capture a signal when it is operated in single trigger mode is determined by taking the instrument’s memory depth and dividing it by the instrument’s sample rate. The memory depth can be changed within the instrument’s acquire menu and then the sample rate can be changed by adjusting the horizontal scaling. The table below lists the different memory depth and sample rate combinations that are possible on the DS2000A series and lists the length of time the instrument is able of capturing with each possible combination.

Note that the length of time listed is in seconds and this is for one channel.

	Memory Depth
Sample Rate	14000	140000	1400000	14000000	56000000
1000	14	140	1400	14000	56000
2000	7	70	700	7000	28000
5000	2.8	28	280	2800	11200
10000	1.4	14	140	140	5600
20000	0.7	7	70	700	2800
50000	0.28	2.8	28	280	1120
100000	0.14	1.4	14	140	560
200000	0.07	0.7	7	70	28
500000	0.028	0.28	2.8	28	112
1000000	0.014	0.14	1.4	14	56
2000000	0.007	0.07	0.7	7	28
5000000	0.0028	0.028	0.28	2.8	11.2
10000000	0.0014	0.014	0.14	1.4	5.6
20000000	0.0007	0.007	0.07	0.7	2.8
50000000	0.00028	0.0028	0.028	0.28	1.12
100000000	0.00014	0.0014	0.014	0.14	0.56
200000000	0.00007	0.0007	0.007	0.07	0.28
500000000	0.000028	0.00028	0.0028	0.028	0.112
1000000000	0.000014	0.00014	0.0014	0.014	0.056
2000000000	0.000007	0.00007	0.0007	0.007	0.028

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