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VT DSO-2A10

Second-Generation 100MSPS 40MHz 10~16Bit Precision PC USB Oscilloscope, Spectrum Analyzer, Multimeter, 12-bit 3.125MSPS 150kHz AWG Signal Generator

with a hardware activated Multi-Instrument (Standard) software license

Turn a PC into multiple virtual instruments!

1. Introduction

This is one of the second-generation USB DSOs 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. 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.

Feature Highlights

10~16 Bit 100MSPS 40MHz Oscilloscope and Spectrum Analyzer
12-Bit 3.125MSPS 150kHz AWG Signal Generator
2 analog input, 1 digital output, 1 analog output
Unique hardware based DSP algorithm
Sophisticated trigger function
12 voltage ranges, 0.5% DC accuracy
Adaptive anti-aliasing filter
Streaming Mode supported
A comprehensive suite of time-domain, frequency-domain and time-frequency domain processing and analyses.
Multi-Instrument software can be downloaded from virtins.com for a 21-day fully functional FREE trial using your sound card as the ADC and DAC device

2. Package Contents

1) VT DSO-2A10 unit with a hardware activated Multi-Instrument Standard software license

2) 2 ´ 60MHz Oscilloscope Probe P2060 with two switchable positions: ´ 1, ´ 10

3) Signal Generator Test Lead (1 m)

4) USB cable (1.5 m)

5) CD (contains the copy-protected Multi-Instrument software and VT DSO-2A10 driver)

6) Individual voltage calibration data

3. VT DSO-2A10 Hardware Specifications

Oscilloscope Horizontal (Time) Axis
Real Time Sampling Frequency (f_s)		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] ´ [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. 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 f_s £ 1MHz and [Record Length] ³ 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		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
		³ 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	f_s> 20 MHz	40 MHz
	f_s£ 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 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 MW, 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 MW, 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 0.11f_s 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 (%)] ³ -100% at rising edge, or [Trigger Level (%)] + [Hysteresis (%)] £ 100%] at falling edge.

Oscilloscope Dynamic Performance (Typical)
THD	f_s=100 kHz, f=1 kHz, from 2^nd to 20^th 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)	f_s=100 kHz, from 2^nd to 3^rd 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)	f_s=100 kHz, 2^nd 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	f_s=100 kHz, f=1 kHz, full-scale input: 8 bits (without bit resolution enhancement): ³ 61 dB 8 bits (with bit resolution enhancement): ³ 61 dB 16 bits: ³ 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, f_s =100 kHz): £ ±2 counts (± 0.8%) 16 bits (f_s =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, f_s =100 kHz): £ ±9 counts (±4%) 16 bits (f_s =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	About 600 W
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 (f_s)		DDS Mode or Streaming Mode 3.125 MHz, 1.5625 MHz, 781.25 kHz, 312.5 kHz, 156.25 kHz, 62.5 kHz, 31.25 kHz, 15.625 kHz, 12.5 kHz, 6.25 kHz, 3.125 kHz
Output Sampling Frequency Accuracy		±50 ppm
Bandwidth		DC ~ 150 kHz
Output Signal Frequency		0 ~ ½ of output sampling frequency
Rise Time (10% ~ 90%)		< 2.3 ms
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	<0.0007 Hz (f_s = 3.125 MHz)
	Streaming Mode	Virtually infinitesimal
Buffer Size	DDS Mode	Without interpolation: 1024 samples With interpolation: 1024 ´ 65536 = 67108864 samples (Note: interpolation is only available when f_s<= 1.5625 MHz)
	Streaming Mode	Virtually unlimited
Frequency Sweep	DDS Mode	Supports linear sweep of all types of repetitive waveforms. Sweep speed range: 1/32768 ´ f_s² / 2³² ~ 65535 ´ f_s² / 2³² (e.g. 0.017 Hz/s ~ 37.3 MHz/s when f_s= 1.5625 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 ´ f_s / (2³² –1) ~ 65535 ´ f_s / (2³² –1) (e.g. 0.00000111 %/s ~ 2384 %/s when f_s= 1.5625 MHz)
	Streaming Mode	Supports linear and logarithmic sweep of all types of waveforms. Sweep speed range: unlimited
Duration (Signal Length) Resolution	DDS Mode	1/f_s or 1 ms, whichever is greater
	Streaming Mode	1/f_s
THD		£ -60 dB (f_s= 1.5625 MHz, f = 1 kHz, from 2^nd to 20^th order, full-scale output)
SFDR		³ 65 dB (f_s= 1.5625 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		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	VT DAO 1
Firmware Upgradable	Yes
Power	Bus powered by USB port, no external power source required.
Power Consumption	Max. 2W
Dimensions	145 mm (L) ´ 108 mm (W) ´ 26 mm (H), Metal Casing
System Requirement	Windows XP, Vista, 7, 8, 10, 11 or above, 32 bit or 64 bit
Operating Temperature	0°C ~50°C

4. Introduction of Multi-Instrument (Standard)

Multi-Instrument (Standard) is a powerful PC based multi-function virtual instrument software. It supports a variety of hardware ranging from sound cards which are available in almost all computers to proprietary ADC and DAC hardware such as VT DSO, VT IEPE, VT CAMP, VT RTA, NI DAQmx cards and so on. It consists of a dual trace oscilloscope, a real time spectrum analyzer, a signal generator and a multimeter, and can run them simultaneously.

For a sound card based system, software triggering is supported. It features a specially designed data acquisition approach, which is able to monitor the input signal continuously without missing any trigger event before a frame of data is collected. It has a very fast screen refresh rate (typically greater than 50 frames per second). It supports sophisticated triggering method including pre-trigger and post-trigger. Both level trigger and differential trigger are supported. For a non sound card based system, the triggering capability depends on the hardware used. Hardware triggering is supported if the hardware used supports it. Software triggering is supported if the hardware used supports data streaming.

The software has a multilingual user interface, including English, French, German, Italian, Spanish, Portuguese, Russian, Simplified Chinese, Traditional Chinese, Japanese, and Korean. It has been widely used in education, scientific research, audio engineering, electronic engineering, medical diagnosis, vibration analysis, etc.

The software can be downloaded from virtins.com for a 21-day fully functional FREE trial using your sound card as the ADC and DAC device.

5. Functions of Multi-Instrument (Standard Version)

A comprehensive range of functions are provided in Multi-Instrument (Standard), including:

(1) Oscilloscope

Oscilloscope Mode: dual-trace waveform, waveform addition, subtraction and multiplication, Lissajous Pattern, transient signal recording, voltmeter. AM, FM, PM Demodulation. Linear and exponential average...

Record Mode: Record data to the hard disk continuously until the recording process is stopped manually or 2 gigabytes of data has been recorded, whichever is earlier. During the recording process, acquired data will still be analyzed and displayed to keep the screen updated in real time.

Roll Mode: Data displayed in the Oscilloscope will shift left gradually while the newly acquired data are added from the right.

(2) Spectrum Analyzer

RMS amplitude spectrum, relative amplitude spectrum, octave analysis (1/1,1/3,1/6,1/12,1/24, 1/48, 1/96), frequency compensation, frequency weighting (A,B,C,ITU-R 468), moving average smoothing, peak hold, linear average, exponential average, measurement of THD, THD+N, SNR, SINAD, Noise Level, IMD, Bandwidth, Crosstalk, Harmonics, Peaks, and Energy in user defined frequency bands, phase spectrum, auto correlation function, cross correlation function...

(3) Signal Generator

Function generation, multitone generation, arbitrary waveform generation, burst tone generation, MLS generation, DTMF generation, musical scale generation, white noise and pink noise generation, and frequency/amplitude sweep signal generation. Fade In / Fade Out of the output signal. AM, FM, PM modulation...

(4) Multimeter

RMS, dBV, dBu, dBSPL, dB(A), dB(B), dB(C), Frequency Counter, RPM, Counter, Duty Cycle, Frequency/Voltage Conversion, Cycle RMS, Cycle Mean. The latter seven modes involves a pulse counting process, with the counter trigger level, hysteresis, frequency dividing ratio adjustable.

6. License information and Function Allocation in Multi-Instrument Series

The full package of Multi-Instrument has six levels and five add-on modules/functions.

The six levels are: Sound Card Oscilloscope (listed price US$39.95), Sound Card Spectrum Analyzer (listed price US$59.95), Sound Card Signal Generator (listed price US$39.95), Multi-Instrument Lite (listed price US$79.95), Multi-Instrument Standard (listed price US$129.95), Multi-Instrument Pro (listed price US$229.95).

The six add-on modules/functions are: Spectrum 3D Plot (listed price US$99.95), Data Logger (listed price US$99.95), LCR Meter (listed price US$99.95), Device Test Plan (listed price US$99.95), Vibrometer (listed price US$99.95), Dedicated Hardware Support (listed price US$99.95).

Note: The item here contains one hardware activated license of Multi-Instrument (Standard) without any add-on modules/functions. "Hardware activated" means that the VT DSO-2810 hardware unit must be connected to the computer in order for the software to work under the licensed mode. Otherwise the software will work in 21-day fully functional trial mode. No softkey (activation code) will be given under the hardware activated license.

Please refer to virtins.com/multi-instrument.shtml for the function allocation matrix for the six levels of Multi-Instrument.

7. Extended use of the Multi-Instrument Software

With the VT DSO-2A10 unit connected to the computer, the Multi-Instrument software will run under the licensed mode. In Multi-Instrument, the ADC device and DAC device can be independently selected. For example, you can use the VT DSO-2A10 as the ADC device and your computer's sound card as the DAC device, and they can work simultaneously. Or, you can use the sound card for both ADC and DAC. Note: the test lead (or probe) for sound card is not included in this pacakge, but you can make the connection by yourself or purchase it from us separately.

Specification for a sound card based system:

Scan Time: 100µs~500s*
Sampling Rate*: Max. 768kHz
Bandwidth*: 10Hz~200kHz
Bit Depth*: 8, 16,24
Voltage Range*: Max -1V~1V
Input Channel: Ch.A, Ch. B
Output Channel: Ch.A, Ch. B
Trigger Mode: Auto, Normal, Single, Slow
Trigger Edge: Rising, Failing, Differential
Trigger Delay: Pre-Trigger, Post-Trigger
Trigger Source: Ch. A, Ch. B
FFT Size: 128~4194304
Window Functions: 55 types
Window Overlap: 0%~99%
Octave Analysis: 1/1, 1/3, 1/6, 1/12, 1/24, 1/48, 1/96
Frequency Weighting: A, B, C, ITU-R 468

* Sound Card dependent * Computer Memory dependent

For a non sound card based system:

Please refer to the respective hardware manual.

8. System Requirement

PCs, laptops or tablets with Microsoft Windows XP or later, with a USB port. Both 32 bit and 64 bit Windows are supported. Screen horizontal resolution is recommended to be equal to or greater than 1024 pixels.

For a sound card basd system, 8, 16 or 24 bit Windows compatible sound card is required.

The software also supports NI DAQmx cards such as NI USB 6009.

9. Software Upgrade policy

Software upgrade for the same license level is always FREE. When a new version is available, you can just uninstall your current version, download and re-install the new version, as long as the VT DSO-2A10 unit is still supported by the new version.

Software upgrade to a higher level can be purchased from virtins.com. The software license activated by VT DSO-2A10 is remotely upgradable.

10. Shipping

We ship worldwide.

The item will be shipped via express mail service within 24 hours after the payment is received. It will take normally about 5~8 days to deliver to you (e.g. USA, UK, Australia, Canada, Hong Kong, Taiwan, Japan, Korea...). In some specially cases, or special places (e.g. Italy), it may take a little longer time. The shipping and handling charge is fixed at US$30 for all places. Tracking information online will be provided 2 days after shipping. You MUST provide us your telephone number as required by the courier company to facilitate the delivery!

11. Refund Policy

One year warranty against defective materials and manufacturing defects for all hardware parts inside the package.

Return for malfunctional item is accepted for refund within 7 days after you receive the item. For full refund, the package must be in the same condition as received with all accessories. The returned item must be delivered with postage prepaid by the customer. You must contact us first before you return it. We strongly recommend that you try out the Multi-Instrument software from virtins.com first before you buy it. Please contact us if you are in doubt before you place the order.