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VT DSO-2810R
VT-DSO-2810R
PC based USB 8~16Bit 100MSPS 40MHz Oscilloscope and Spectrum Analyzer  
US$199.95     Free Express Shipping       Brochure    Manual


Download and try the fully functional Multi-Instrument software using your sound card as the ADC and DAC device!

1. Instroduction

This is one of the second-generation USB DSO (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.

2. Package Contents

1) VT DSO-2810R unit with a hardware bundled Multi-Instrument Standard software license
2) 2 × 60MHz Oscilloscope Probe P6060 with two switchable positions: × 1, × 10
3) USB cable (1.5 m)
4) CD (contains the copy-protected Multi-Instrument Software and VT DSO-2810R driver)

3. VT DSO-2810R Hardware Specifications

Oscilloscope Horizontal (Time) Axis
Real Time Sampling Frequency (fs) Single Analog Channel
100 MHz

Single or Dual Analog Channels
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] × [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)
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 × [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 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 8 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 8 Bits ≤ 10 MHz 9 Bits
≤ 2.5 MHz 10 Bits ≤ 625 kHz 11 Bits
≤ 156 kHz 12 Bits ≤ 39 kHz 13 Bits
≤ 9.8 kHz 14 Bits ≤ 2.4 kHz 15 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)
± 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 ±1%
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 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, 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: ≤ -59 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: ≤ -57 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 (digital signal only)
Coupling Type DC
Output Isolation No
Terminal Type Referenced Single-Ended, probe calibration connector
Output Impedance About 600 Ω
Overvoltage Protection ± 35 V

Signal Generator - Digital (when Signal Generator is not running)
Voltage Range 0 ~ 3.3 V, not adjustable
Output Signal Frequency Accuracy ± 50 ppm
Bandwidth 13 MHz
Rise Time (10% ~ 90%) < 50 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 Not Applicable
Firmware Upgradable Yes
Power Bus powered by USB port, no external power source required.
Power Consumption Max. 1.5W
Dimensions 111 mm (L) × 70 mm (W) × 24 mm (H),   anodized aluminum case
System Requirement Windows XP, Vista, 7, 8 or above, 32 bit or 64 bit
Operating Temperature 0° C ~50° C


4. P6060 Oscilloscope Probe Hardware Specifications
Attenuation Ratio × 1, × 10
Bandwidth DC ~ 60 MHz (× 10), DC ~ 6 MHz (× 1)
Input Impedance 1 MΩ (× 1, with VT DSO connected)
10 MΩ (× 10, with VT DSO connected)
Input Capacitance 18.5 pF ~ 22.5 pF (× 10), 85 pF ~ 120 pF (× 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.


5. Examples

1) Measurements of PAL Composite Video Signals

PAL Composite Video Signal Measured by VT DSO-2810

2) Measurements of a 500Hz sine wave and a 1kHz square wave under ALT trigger mode

500Hz Sine and 1kHz Square waves measured by VT DSO-2810


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