Click here to download and try the fully functional Multi-Instrument software using your sound card as the ADC and DAC device!
PC based USB 10~16Bit 100MSPS 40MHz Oscilloscope, Spectrum Analyzer, 12-bit 200MSPS 60MHz AWG Signal Generator
VT DSO-2A10E is one of the second-generation USB DSOs (USB oscilloscopes) designed and developed by Virtins Technology. This generation of USB DSOs features Virtins Technology's unique
hardware-based DSP algorithm which enhances the performance and functionality dramatically without adding extra hardware cost. When used in conjunction with Multi-Instrument® software, the
USB DSO converts any desktop, laptop, or tablet PC into a powerful oscilloscope, spectrum analyzer, multimeter, data logger, signal generator and so forth, all of which work simultaneously.
Find out more: Brochure, Manual
Oscilloscope Horizontal (Time) Axis | |||
---|---|---|---|
Real Time Sampling Frequency (fs) |
Single Analog Channel 100 MHz Single or Dual Analog Channels with or without 1-bit Digital Channel 50 MHz, 40 MHz, 20 MHz, 10 MHz, 5 MHz, 4 MHz, 2 MHz, 1 MHz, 500 kHz, 400 kHz, 200 kHz, 100 kHz, 50 kHz, 40 kHz, 20 kHz, 10 kHz, 5 kHz, 4 kHz, 2 kHz, 1 kHz, 500 Hz, 400 Hz, 200 Hz, 100 Hz, 50 Hz, 40 Hz, 20 Hz, 10 Hz, 5 Hz, 4 Hz, 2 Hz, 1 Hz |
||
Equivalent Sampling Frequency | = [Real Time Sampling Frequency] x [Number of Frames Persisted]. Maximum 20 GHz, for repetitive signals whose maximum frequency is less than ¼ of the real time sampling frequency. Not valid for the case of post-trigger. | ||
Buffer Size | Normal Frame Mode | Analog |
Single Channel 40000 samples (8 bits) 20000 samples (16 bits) Dual Channels 20000 samples / channel (8 bits, Non-ALT mode) 10000 samples / channel (16 bits, Non-ALT mode) 40000 samples / channel (8 bits, ALT mode) 20000 samples / channel (16 bits, ALT mode) |
Digital | 20000 samples (1 bit) | ||
Record Mode (Streaming Mode) |
Limited only by hard disk space available and maximum file size allowed by the operating system. Maximum sampling frequency for continuous streaming is computer speed and software setting dependent and typically 10 MHz (single channel, 8 bit) in Multi-Instrument. |
||
Roll Mode (Streaming Mode for Low Frequency Signals) |
Limited only by the computer memory available. Roll Mode is allowed when fs ≤ 1MHz and [Record Length] ≥ 4 x [Roll Width]. Maximum sampling frequency for continuous streaming is computer speed and software setting dependent. |
||
Sweep Time | 10 ns ~ 500 s (Non-Streaming Mode) | ||
Sampling Frequency Accuracy | ± 50 ppm |
Oscilloscope Vertical (Analog) Axes | |||||||
---|---|---|---|---|---|---|---|
Number of Channels | 2 (i.e. Ch. A and Ch. B) | ||||||
ADC Bit Resolution | 10 Bits (can be reduced to 8 bits) | ||||||
Enhanced ADC Bit Resolution (available only when Sampling Frequency is less than 40 MHz) |
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 | ||||
≥ 40 MHz | 10 Bits | ≤ 10 MHz | 11 Bits | ||||
≤ 2.5 MHz | 12 Bits | ≤ 625 kHz | 13 Bits | ||||
≤ 156 kHz | 14 Bits | ≤ 39 kHz | 15 Bits | ||||
≤ 9.8 kHz | 16 Bits | ≤ 2.4 kHz | 16 Bits | ||||
≤ 610 Hz | 16 Bits | ||||||
Bandwidth | fs > 20 MHz | 40 MHz | |||||
fs ≤ 20 MHz | 8 Bits | No Effective Bit Resolution Enhancement | 40 MHz | ||||
Effective Bit Resolution Enhancement | 6 ~ 10 MHz | ||||||
16 Bits | Effective Bit Resolution Enhancement | about 0.443 fs | |||||
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 MΩ , 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 MΩ , 15 pF |
Zero Calibration | Through software. Individually done at factory. |
Gain Calibration | Through software. Individually done at factory. |
Oscilloscope Trigger | |
---|---|
Trigger Detection Method | Digital |
Trigger Source | Ch. A, Ch. B, EXT, ALT |
Trigger Mode | Auto, Normal, Single, Slow |
Trigger Edge | Rising, Falling |
Trigger Level | Adjustable within full scale |
Pre-Trigger | -100% ~ 0% of Record Length |
Post-Trigger | 0 ~ 100% of Record Length |
Trigger Frequency Rejection |
Nil: No Rejection HFR: High Frequency Rejection, cut off at 0.11fs NR0: Noise Rejection, hysteresis = 1% of half of full scale NR1: Noise Rejection, hysteresis = 2% of half of full scale NR2: Noise Rejection, hysteresis = 4% of half of full scale NR3: Noise Rejection, hysteresis = 8% of half of full scale NR4: Noise Rejection, hysteresis = 16% of half of full scale HN0: HFR + NR0 HN1: HFR + NR1 HN2: HFR + NR2 HN3: HFR + NR3 HN4: HFR + NR4 HNX: selectable HFR + adjustable hysteresis = 0% ~ 25% of half of full scale Note: The specified hysteresis may be modified internally to ensure [Trigger Level (%)] - [Hysteresis (%)] ≥ -100% at rising edge, or [Trigger Level (%)] + [Hysteresis (%)] ≤ 100% at falling edge. |
Oscilloscope Dynamic Performance (Typical) | |
---|---|
THD |
fs=100 kHz, f=1 kHz, from 2nd to 20th order, full-scale input: 8 bits (without bit resolution enhancement): ≤ -55 dB 8 bits (with bit resolution enhancement): ≤ -56 dB 16 bits: ≤ -69 dB |
IMD (250 Hz + 8 kHz, 4:1) |
fs=100 kHz, from 2nd to 3rd order, full-scale input: 8 bits (without bit resolution enhancement): ≤ -51 dB 8 bits (with bit resolution enhancement): ≤ -52 dB 16 bits: ≤ -59 dB |
IMD (19 kHz +20 kHz, 1:1) |
fs=100 kHz, 2nd order only, full-scale input: 8 bits (without bit resolution enhancement): ≤ -65 dB 8 bits (with bit resolution enhancement): ≤ -65 dB 16 bits: ≤ -78 dB |
SFDR |
fs=100 kHz, f=1 kHz, full-scale input: 8 bits (without bit resolution enhancement): ≥ 61 dB 8 bits (with bit resolution enhancement): ≥ 61 dB 16 bits: ≥ 62 dB |
Crosstalk | ≤ -45 dB (at the same voltage measuring range for full bandwidth) |
Noise |
For voltage measuring ranges ± 50 mV and above: 8 bits (without bit resolution enhancement): ≤ ± 3 counts (± 1%) 8 bits (with bit resolution enhancement, fs =100 kHz): ≤ ± 2 counts (± 0.8%) 16 bits (fs =100 kHz): ≤ ± 0.3 8-bit count (± 0.1%) For voltage measuring ranges ± 10 mV and ± 20 mV: 8 bits (without bit resolution enhancement): ≤ ± 15 counts (± 6%) 8 bits (with bit resolution enhancement, fs =100 kHz): ≤ ± 9 counts (± 4%) 16 bits (fs =100 kHz): ≤ ± 1 8-bit count (± 0.4%) |
Signal Generator General | |
---|---|
Number of Channels | 1 |
Coupling Type | DC |
Output Isolation | No |
Terminal Type | Referenced Single-Ended, BNC |
Output Impedance | 50 Ω |
Overvoltage Protection | ± 35 V |
Signal Generator - Analog (when Signal Generator is running) | ||
---|---|---|
Output Voltage Range | ± 2 V, adjustable | |
DAC Bit Resolution | 12 Bits | |
Output Sampling Frequency (fs) |
DDS Mode 200 MHz, 100MHz, 50MHz DDS Mode or Streaming Mode 20MHz, 10MHz, 5MHz, 2 MHz, 1 MHz, 500 kHz, 200 kHz, 100 kHz, 50 kHz, 20 kHz, 10 kHz, 5 kHz |
|
Output Sampling Frequency Accuracy | ± 50 ppm | |
Bandwidth | DC ~ 60 MHz | |
Output Signal Frequency | 0 ~ ½ of output sampling frequency | |
Rise Time (10% ~ 90%) | < 5.8 ns | |
DC Offset Range | Full output voltage range | |
DC Accuracy | ± 0.2% of full scale | |
Waveform | DDS Mode* | Sine, Rectangle (duty cycle adjustable), Triangle, Saw Tooth, White Noise, MLS (length = 263-1), User Configurable Waveform Library (Arbitrary), Musical Scale |
Streaming Mode* |
Sine, Rectangle (duty cycle adjustable), Triangle, Saw Tooth, White Noise, Pink Noise, MultiTones, MLS (127~16777215), DTMF, User Configurable Waveform Library (Arbitrary), Musical Scale |
|
Signal Frequency Resolution |
DDS Mode | <0.05 Hz (fs = 200 MHz) <0.000001 Hz (fs = 5 kHz) |
Streaming Mode | Virtually infinitesimal | |
Buffer Size | DDS Mode |
Without interpolation: 1024 samples With interpolation: 1024 x 65536 = 67108864 samples (Note: interpolation is only available when fs <= 100 MHz) |
Streaming Mode | Virtually unlimited | |
Frequency Sweep | DDS Mode |
Supports linear sweep of all types of repetitive waveforms. Sweep speed range: 1/32768 x fs2 / 232 ~ 65535 x fs2 / 232 (e.g. 284 Hz/s ~ 610 GHz/s when fs = 200 MHz) |
Streaming Mode | Supports linear and logarithmic sweep of all types of repetitive waveforms. Sweep speed range: unlimited |
|
Amplitude Sweep | DDS Mode |
Supports linear sweep of all types of waveforms. Sweep speed range: 1/32768 x fs / (232 -1) ~ 65535 x fs / (232 -1) (e.g. 0.000142 %/s ~ 305171%/s when fs = 200 MHz) |
Streaming Mode | Supports linear and logarithmic sweep of all types of waveforms. Sweep speed range: unlimited |
|
Duration (Signal Length) Resolution | DDS Mode | 1/fs or 1µs, whichever is greater |
Streaming Mode | 1/fs | |
THD | ≤ -60 dB (fs = 2 MHz, f = 1 kHz, from 2nd to 20th order, full-scale output) |
|
SFDR | ≥ 65 dB (fs = 2 MHz, f = 1 kHz, full-scale output) |
|
Zero Calibration | Through software. Individually done at factory. | |
Gain Calibration | Through software. Individually done at factory. |
*DDS mode consumes almost no computer CPU time while streaming mode consumes a lot. Maximum sampling frequency for continuous streaming is computer speed and software setting dependent and typically 10 MHz in Multi-Instrument. More advanced functions are provided via Multi-Instrument software under streaming mode. Please refer to Multi-Instrument software manual for details.
Signal Generator - Digital (when Signal Generator is not running) | |||
---|---|---|---|
Voltage Range | -1.65 ~ 1.65 V, not adjustable | ||
Output Signal Frequency Accuracy | ± 50 ppm | ||
Bandwidth | 60 MHz | ||
Rise Time (10% ~ 90%) | < 5.8 ns | ||
Waveform | Square | Signal Frequency | 25 MHz / N, (N=1, 2, 3, ….25000) |
MLS | Sampling Frequency | 25 MHz / N, (N=1, 2, 3, ….25000) |
General | ||
---|---|---|
Interface | USB 2.0 High Speed / USB 1.1 Full Speed / USB Isolator | |
Device Category in Multi-Instrument | ADC Device | VT DAQ 1 |
DAC Device | VT DAO 1 | |
Firmware Upgradable | Yes | |
Power | Bus powered by USB port, no external power source required. | |
Power Consumption | Max. 2.5W | |
Dimensions | 145 mm (L) x 108 mm (W) x 26 mm (H), anodized aluminum case | |
System Requirement | Windows XP, Vista, 7, 8, 8.1, 10 or 11, 32 bit or 64 bit | |
Operating Temperature | 0° C ~50° C |
General | |
---|---|
Attenuation Ratio | x 1, x 10 |
Bandwidth | DC ~ 60 MHz (x 10), DC ~ 6 MHz (x 1) |
Input Impedance | 1 MΩ (x 1, with VT DSO connected) 10 MΩ (x 10, with VT DSO connected) |
Input Capacitance | 18.5 pF ~ 22.5 pF (x 10), 85 pF ~ 120 pF (x 1) |
Input Capacitance Compensation Range | 15 ~ 45 pF |
Length | 1.2 m |
Accessories include: a 12 cm snap-on rotating ground lead, a sprung hook, two marker rings, a probe compensation adjustment tool, two probe tip caps.