VT DSO-2A20 Manual Rev. 1.1
Virtins Technology
ADC Bit Resolution
10 Bits (can be reduced to 8 Bits)
16 Bits
If this option is selected, the effective bit resolution increases
from 10 bits to up to 16 bits as the sampling frequency goes
down.
(Assuming white noise in the signal)
Sampling
Frequency
Effective Bit
Resolution
Sampling
Frequency
Effective Bit
Resolution
≥
100 MHz
10 Bits
≤
25 MHz
11 Bits
≤
6.25 MHz
12 Bits
≤
1.563 MHz
13 Bits
≤
391 kHz
14 Bits
≤
97.7 kHz
15 Bits
≤
24.4 kHz
16 Bits
≤
6.10 kHz
16 Bits
Enhanced ADC Bit
Resolution
≤
1.526 kHz
16 bits
f
s
>
50 MHz 80 MHz
No Effective Bit Resolution
Enhancement
80 MHz
8 Bits
Effective Bit Resolution
Enhancement
15 ~ 25 MHz
Bandwidth
f
s
≤
50 MHz
16 Bits
Effective Bit Resolution
Enhancement
about 0.443 f
s
Voltage Measuring Range
(Full Scale)
±
10 mV,
±
20 mV,
±
50 mV,
±
100 mV,
±
200 mV,
±
500 mV,
±
1 V,
±
2 V,
±
5 V,
±
10 V,
±
20 V,
±
50 V
Max. Allowed Voltage
±
100 V
(DC + AC peak), derated above 100kHz
DC Accuracy
±
0.5%
Coupling Type
AC / DC
Input Isolation
No (Isolation can be achieved through a USB isolator)
Terminal Type
Referenced Single-Ended, BNC
Input Impedance
1 M
Ω
, 15 pF
Zero
Calibration
Through hardware. Individually done at factory, user
adjustable
Gain
Calibration
Through hardware. Individually done at factory, user
adjustable
Oscilloscope Vertical (Digital) Axis
Number of Channels
1 (i.e. External Trigger Channel, 1-bit ADC)
Bandwidth 140
MHz
Threshold Resolution
11 mV
Threshold Hysteresis
225 mV
Threshold Range
±
20 V
Max. Allowed Voltage
±
100V
(DC + AC peak), derated above 100kHz
Threshold DC Accuracy
±
1%
Coupling Type
DC
Input Isolation
No (Isolation can be achieved through a USB isolator)
Terminal Type
Referenced Single-Ended, BNC
Input Impedance
1 M
Ω
, 15 pF
Zero Calibration
Through software. Individually done at factory.
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