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GW Instek MDO-2104EX - 100MHz , 4-channel, Digital Storage Oscilloscope,Spectrum analyzer ,dual channel 25MHz AWG ,5,000 counts DMM and power supply

100MHz , 4-channel, Digital Storage Oscilloscope,Spectrum analyzer ,dual channel 25MHz AWG ,5,000 counts DMM and power supply

GW Instek

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Category : Digital Oscilloscopes

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Brochure USB Driver LabVIEW Driver Programming Manual User's Manual PC Software


One Oscilloscope ,Two Domains


MDO-2000E series is multi-functional mixed domain oscilloscope. The series includes two feature combinations : MDO-2000EG and MDO-2000EX. MDO-2000EG models have a built-in spectrum analyzer and a dual channel 25MHz arbitrary waveform generator and MDO-2000EX models feature a built-in a spectrum analyzer, arbitrary waveform generator, a 5,000 count DMM, and a 5V/1A power supply. The first of its kind, MDO-2000EX is the only oscilloscope to equip with a DMM and a power supply in the T&M industry.

While entering the spectrum mode, MDO-2000E series will display a full screen of frequency domain. Users can input Center frequency, Span, Start frequency, and Stop frequency based upon test requirements so as to rapidly and intuitively observe required frequency range that allows users to experience the user interface of a real spectrum analyzer. While observing frequency domain display, engineers can observe waveform characteristics, which are not easily to be seen from time domain waveforms, for instance, the harmonic composition of a waveform and the frequency characteristics of a modulation signal. Compared with oscilloscope' FFT, MDO-2000E series allows engineers to effectively conduct signal measurements on frequency domain.

Conventional DSO's FFT always calculates the entire signal bandwidth up to half the sampling rate (Fs). However, the insufficient calculation capability can't conduct FFT calculation with more points. Users can't have the signal's detailed frequency information due to the insufficient frequency resolution from the calculation result. Whereas MDO-2000E series analyzes signal spectrum of interest. Compared with oscilloscope' FFT, MDO-2000E series allows engineers to effectively conduct signal measurements on frequency domain. Right illustration shown the conventional DSO's FFT (above figure) VS. MDO-2000E's Spectrum analyzer (below figure).

MDO-2000E series frequency domain also includes Spectrum Trace Type settings (Normal, Max-hold, Min-hold, and Average)(Figure 1). Users can freely select various Spectrum Traces for simultaneous display. Detection method (Sample, +Peak, -Peak, and Average)(Figure 2) can be individually set for each Trace. Additionally, users, via Cursor, can manually mark the corresponding positions to reflect Frequency and Amplitude. The Search function can also be applied to log spectrum's Peak Table. Amplitude is displayed with dB and Marker can obtain measurement data. Users can use the Search function to search and mark the amplitude and frequency of spectrum signal. Search methods include Max. peak and threshold. Measurement results can be displayed and saved.(Figure 3)

Figure 1

Figure 2

Figure 3


Compared with the general spectrum analyzer, the spectrum function of MDO-2000E series can test below~9kHz signals, which is applicable to the frequency domain analysis of audio frequency and vibration. MDO-2000E series can also test the frequency domain signal with DC component without damaging the instrument. With respect to frequency domain waveform display, MDO-2000E series, featuring the same capability of a real-time spectrum analyzer, is faster than the general spectrum analyzer. Why? It is because MDO-2000E series utilizes digital circuit and software to calculate FFT. The general spectrum analyzer can only process the signal of a narrow frequency bandwidth at a time by frequency sweeping. Each sweeping will take several ms to dozens of ms. Hundreds and thousands of frequency sweepings are gathered to form a spectrum. Therefore, the displayed spectrum is not obtained at the same time. MDO-2000E series obtains spectrum display at the same time by utilizing digital circuit and software to calculate FFT that is faster than the frequency sweeping method. The FFT settings of oscilloscopes are based upon horizontal scale (sample rate) setting, which is totally different from the frequency range setting of MDO-2000E series. Most instruments will have insufficient frequency resolution due to insufficient FFT points while conducting spectrum measurement by FFT. Compared with the FFT of oscilloscopes, MDO-2000E series satisfies users with signal measurement requirements under 9kHz; a better setting interface, measurement resolution and measurements speed.


  • 200/100/70MHz bandwidth selections ; 2 or 4 channels
  • Real time sample rate for each channel is 1GSa/s (2 channel models)
  • Maximum real time sample rate is 1GSa/s (4 channel models)
  • Per Channel 10M memory depth and VPO waveform display technology
  • Waveform update rate up to 120,000 wfms/s
  • 8 “ WVGA TFT LCD display
  • Maximum 1M FFT provides higher frequency domain resolution measurements
  • High ,low and band pass filter functions
  • 29,000 segmented memories and waveform search functions
  • I2C/SPI/UART/CAN/LIN serial bus trigger and decoding function
  • Data log function is able to track signal changes up to 1000 hours
  • Network storage function
  • Mask test function
  • MDO-2000EG equips with a spectrum analyzer and a dual channel 25MHz AWG MDO-2000EX equips with a spectrum analyzer ; a dual channel 25MHz AWG; DMM and power supply.
Channels 4ch
Bandwidth DC~100MHz
Rise time 3.5ns
Bandwidth Limit 20MHz

Vertical Sensitivity

Resolution 8 bit
Input Coupling AC, DC, GND
Input Impedance 1MΩ// 16pF  approx.
DC Gain Accuracy ±(3%)when 2mV/div or greater is selected
±(5%)when 1mV/div is selected;
Polarity Normal & Invert
Maximum Input Voltage  300Vrms, CAT I
Offset Position Range 1mV/div ~ 20mV/div : ±0.5V
50mV/div ~ 200mV/div : ±5V
500mV/div ~ 2V/div : ±25V
5V~10V/div : ±250V
Waveform Signal Process  +, -, ×, ÷, FFT, User Defined Expression.
FFT:Spectral magnitude. Set FFT Vertical Scale to Linear RMS or dBV RMS, and FFT Window to Rectangular, Hamming, Hanning, or Blackman.


Source CH1 ,CH2, CH3, CH4, Line, EXT*
*dual channel models only
Trigger Mode Auto (supports Roll Mode for 100 ms/div and slower), Normal, Single Sequence
Trigger Type Edge, Pulse Width(Glitch), Video, Pulse Runt, Rise & Fall(Slope), Alternate,tme out, Event-Delay(1~65535 events), Time-Delay(Duration,4nS~10S), Bus
Holdoff range 4ns~10s
Coupling AC,DC,LF rej. ,HF rej. ,Noise rej.
Sensitivity 1div

External Trigger

Range ±15V
Sensitivity DC ~ 100MHz Approx. 100mV
100MHz ~ 200MHz Approx. 150mV
Input Impedance 1MΩ±3%~16pF


Time base Range 1ns/div ~ 100s/div (1-2-5 increments)
ROLL: 100ms/div ~ 100s/div
Pre-trigger 10 div maximum
Post-trigger 2,000,000 div maximum. 
Time base Accuracy ±50 ppm over any ≥ 1 ms time interval
Real Time Sample Rate Max.:1GSa/s (4ch model)     
Per channel 1GSa/s (2ch model)                                         
Record Length Per Channel 10M pts
Acquisition Mode Normal, Average, Peak Detect, Single
Peak Detection 2ns (typical)
Average selectable from 2 to 256

X-Y Mode

X-Axis Input Channel 1; Channel 3*
*four channel models only
Y-Axis Input Channel 2; Channel 4*
  *four channel models only
Phase Shift ±3° at 100kHz

Cursors and Measurement

Cursors Amplitude, Time, Gating available;Unit:Seconds(s),Hz(1/s) ,Phase(degree) ,Ration(%)
Automatic Measurement 38 sets: Pk-Pk, Max, Min, Amplitude, High, Low, Mean, Cycle Mean, RMS, Cycle RMS, Area, Cycle Area, ROVShoot, FOVShoot, RPREShoot, FPREShoot, Frequency, Period, RiseTime, FallTime, +Width, -Width, Duty Cycle, +Pulses, -Pulses, +Edges, -Edges, %Flicker ,Flicker Idx,FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF, Phase

Control Panel Function

Auto counter 6 digits, range from 2Hz minimum to the rated bandwidth
Autoset Single-button, automatic setup of all channels for vertical, horizontal and trigger systems, with undo Autoset
Save Setup 20 sets
Save Waveform 24 sets


TFT LCD Type 8" TFT LCD WVGA color display
Display Resolution 800 horizontal × 480 vertical pixels (WVGA)
Interpolation Sin(x)/x
Waveform Display Dots, vectors, variable persistence (16ms~4s), infinite persistence
Waveform Update Rate 120,000 waveforms per second, maximum
Display Graticule 8 x 10 divisions
Display mode YT ;XY


USB Port USB 2.0 High-speed host port X1, USB 2.0 High-speed device port X1
Ethernet(LAN) Port RJ-45 connector, 10/100Mbps with HP Auto-MDIX
Go-NoGo BNC 5V Max/10mA TTL open collector output
Kensington Style Lock Rear-panel security slot connects to standard Kensington-style lock.

Spectrum Analyzer Specifications

Frequency range DC~500MHz (Max. ,Max.bandwidth~500MHz uncalibrated)
Span 1kHz~500MHz(Max.)
Resolution bandwidth 1Hz ~ 500kHz(Max.)
Reference level  -50 dBm to +40dBm in steps of 5dBm
Vertical units dBV RMS; Linear RMS; dBm
Vertical position  -12divs to +12divs
Vertical scale 1dB/div to 20dB/div in a 1-2-5 Sequence
Display average noise level 1V/div < -50dBm, Avg : 16
100mV/div  < -70dBm, Avg : 16
10mV/div  < -90dBm, Avg : 16
Spurious response 2nd harmonic distortion< 40dBc
3rd harmonic distortion< 45dBc
Frequency domain trace types Normal ; Max Hold ; Min Hold ; Average (2 ~ 256)
Detection methods Sample ; +Peak ; -Peak ; Average
FFT Windows FFT Factor :
Hanning 1.44
Rectangular 0.89
Hamming 1.30
Blackman 1.68

AWG Specifications

Channels 2
Sample Rate 200 Msa/s
Vertical Resolution 14 bits
Max. Frequency 25 MHz
Waveforms Sine, Square, Pulse, Ramp, DC, Noise,  Sinc, Gaussian, Lorentz, Exponential Rise, Exponential Fall, Haversine, Cardiac
Output Range 20 mVpp to 5 Vpp, HighZ;10 mVpp to 2.5 Vpp, 50 Ω
Output Resolution 1mV
Output Accuracy 2% (1 kHz)
Offset Range ±2.5 V, HighZ;±1.25 V, 50 Ω
Offset Resolution 1mV


Frequency Range 100mHz to 25MHz
Flatness ±0.5 dB( relative to 1kHz)
Harmonic Distortion -40 dBc
Stray (Non-harmonic) -40 dBc
Total Harmonic Distortion 1%
S/N Ratio 40 dB


Frequency Range 100 mHz to 15MHz
Rise/Fall time <15ns
Overshoot <3%
Duty cycle Square:50%;Pulse:0.4%~99.6%
Min. Pulse Width 30 ns
Jitter 500 ps


Frequency Range 100mHz~1MHz
Linearity 1%
Symmetry 0 to 100%

DMM Specifications (MDO-2000EX only)

5,000 counts  
CAT II 600Vrms, CAT III 300Vrms
DC VOLTAGE  50mV, 500mV, 5V, 50V, 500V,  1000V  6 ranges      
Accuracy 50mV, 500mV, 5V, 50V, 500V, 1000V ±(0.1% reading + 5 digits)
Input Impedance  10MΩ      
DC CURRENT  50mA, 500mA,  10A   3 ranges     
Accuracy 50mA - 500mA  ±(0.5% reading + 0.05mA) 10A  ±(0.5% reading + 50mA)
AC VOLTAGE  50mV, 500mV, 5V, 50V, 700V  5 ranges     
Accuracy 50mV, 500mV, 5V, 50V, 700V ±(1.5%  reading + 15 digits) at 50Hz-1kHz * Amplitude greater than 0.2% of the full scale reading.
AC CURRENT 50mA, 500mA, 10A 3 ranges      
Accuracy 50mA, 500mA, ±(1.5% reading + 0.05mA)  at 50Hz-1kHz 10A ±(3% reading + 50mA)  at 50Hz-1kHz  * Measure range: >10mA
RESISTANCE 500Ω, 5kΩ, 50kΩ, 500kΩ, 5MΩ, 5 ranges      
Accuracy 500Ω, 5kΩ, 50kΩ, 500kΩ ±(0.3%  reading + 3 digits) 5MΩ ±(0.5%  reading + 5 digits)

Power supply Specifications (MDO-2000EX only)

Output Channel CH1 & CH2
Output voltage range 1.0V~5.0V
Output Current (Max.) 1A
Voltage Step 0.1V Continuously Adjustable
output Voltage Accuracy  ±3%
Ripple and Noise 50mVrms


Multi-language menu Available
operation environment     Temperature: 0°C to 50°C. Relative Humidity ≤ 80% at 40°C or below; ≤ 45% at 41°C ~ 50°C.
On-line help Available
Time clock Time and Date ,Provide the Date/Time for saved data
Dimensions 384mmX208mmX127.3mm
Weight 3kg

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100MHz , 4-channel, Digital Storage Oscilloscope,Spectrum analyzer ,dual channel 25MHz AWG ,5,000 counts DMM and power supply

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