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GW Instek GDS-3352A - 350MHz, 2 channels, Digital Storage Oscilloscope

350MHz, 2 channels, Digital Storage Oscilloscope

GW Instek

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Category : Oscilloscopes

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The GDS-3000A series is the flagship product of GW Instek's new generation digital storage oscilloscope. Its highest frequency bandwidth has been elevated to 650MHz, and the 350MHz model is also available. The memory depth of each channel is up to 200Mpts.

The sampling rate is 5GSa/s interleaved. The display is 10.2” TFT LCD and the RGB display output is 8 bits each, allowing users to clearly analyze the strength distribution of the measured signal. The models include two-channel and four-channel selections and an optional 16-channel logic analyzer.

GDS-3000A is equipped with a standard dual-channel 25MHz arbitrary waveform generator. Users can select the arbitrary waveform function to store the signal measured by the analog channel or directly output it from the signal generator.

This function allows users to conveniently generate various types of measured signals to simulate diversified signal outputs. The frequency response analysis function (Bode Plot) is also equipped, which can be applied to product circuit and component characteristic verification and analysis, including RLC circuit design, filter design and amplifier design verification and analysis.

  • 650MHz /350MHz Bandwidth, 2 Input Channels
  • 5GSa/s Real-time Sampling Rate(half channels); 2.5GSa/s Real-time Sampling Rate(all channels)
  • Per Channel 200Mpts Memory Depth
  • 200,000 wfm/s of Waveform Update Rate
  • 10.2 inch 800*480 TFT LCD Display
  • 490,000 Segmented Memory and Waveform Search Functions to Optimize the Efficiency of Record Length
  • 38 Automatic Measurement Functions Offers Various Measurement Selections
  • High resolution acquisition mode
  • I2C/UART/CAN/LIN Serial bus trigger and decoding functions
  • Dual Channel Spectrum analyzer (DC~2.5GHz) with spectrogram
  • Dual Channel 25MHz Arbitrary Waveform Generator
  • Optional 13 sets power analysis measurement
  • Optional 16 digital channel with Logic analyzer(MSO)



Channels2 + Ext
BandwidthDC ~ 350MHz (–3dB) @50Ω/1MΩ input impedance
Rise Time1ns (calculated)
Bandwidth Limit20MHz / 100MHz / 200MHz*

* The tolerance of bandwidth limit is ±10%.


Vertical Sensitivity

Resolution8 bits (Max.12bits with Hi Res)
For 1MΩ input impedance: 1mV*~10V/div
For 50Ω input impedance: 1mV*~1V/div
Input CouplingAC, DC, GND
Input Impedance1MΩ// 22pF approx.
DC Gain Accuracy1mV: ±5% full scale
≥2mV: ±3% full scale
PolarityNormal & Invert
Maximum Input VoltageFor 1MΩ input impedance: 300Vrms, CAT II For 50Ω input impedance: 5Vrms max.
Offset Position RangeFor 1MΩ input impedance:
1mV/div ~ 20mV/div :±1V; 50mV/div ~ 500mV/div: ±10V
1V/div ~ 5V/div : ±100V; 10V/div : ±1000V
For 50Ω input impedance:
1mV/div ~ 50mV/div:±1V; 100mV/div ~ 1V/div : ±10V
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.



SourceCH1, CH2, Line, EXT
Trigger ModeAuto (supports Roll Mode for 100ms/div and slower), Normal, Single
Trigger TypeEdge, Pulse Width(Glitch), Video, Pulse Runt, Rise & Fall(Slope), Timeout, Alternate, Event-Delay(1~65535 events), Time-Delay(Duration, 4ns~10s), Bus (UART, I2C, CAN, LIN)
Holdoff range4ns to 10s
CouplingAC, DC, LF rej., HF rej., Noise rej.


External Trigger

SensitivityDC ~ 100MHz Approx. 100mV 100MHz ~ 350MHz Approx. 150mV
Input Impedance1MΩ±3%~22pF

*: The bandwidth is limited to 20MHz at 1mV/div and 2mV/div



Time base Range1ns/div ~ 1000s/div (1-2-5 increments) ROLL: 100ms/div ~ 1000s/div
Pre-trigger10 div maximum
Post-trigger10,000,000 div maximum.
Time base Accuracy±5 ppm, about ±2ppm increase in error per year


Signal Acquisition

Real Time Sample Rate5GSa/s one channel;
2.5GSa/s dual channels
Record LengthMax. 200Mpts /CH
Acquisition ModeNormal, Average, High Resolution, Peak Detect, Single
Peak Detection400ps (typical)
AverageSelectable from 2 to 256
Number of Segments1 to 490,000 maximum


X-Y Mode

X-Axis InputChannel 1
Y-Axis InputChannel 2
Phase Shift±3° at 100kHz


Cursor and Measurement

Cursors Amplitude, Time, Gating available;
Unit: Seconds(s), Hz (1/s), Phase (degree), Ratio (%).
Automatic Measurement38 sets with indicator: 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.
Cursors measurementVoltage difference between cursors(∆V) Time difference between cursors(∆T)
Auto counter6 digits, range from 2Hz minimum to the rated bandwidth


Control Panel Function

AutosetSingle-button, automatic setup of all channels for vertical, horizontal and trigger systems, with “Undo Autoset”, “Fit Screen”/ “AC Priority” mode, and “Fine Scale” functions.
Save Setup20 sets
Save Waveform20 sets
Save Reference Waveform4 sets


Power Measurement (Option)

-Power Quality, Harmonics, Ripple, In-rush current, Switching Loss, Modulation, SOA, Transient, B-H curve, Control Loop Response, Efficiency, PSRR, Turn On/Off



Sample Rate200MSa/s
Vertical Resolution14 bits
Max. Frequency25 MHz
WaveformsSine, 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, 50Ω
Output Resolution1mV
Output Accuracy2% (1 kHz)
Offset Range±2.5 V, HighZ; ±1.25 V, 50 Ω
Offset Resolution1mV
Frequency Range100 mHz to 25 MHz
Flatness (relative to 1 kHz)±0.5 dB < 15MHz;
±1dB 15MHz~25MHz
Harmonic Distortion-40 dBc
Stray (Non-harmonic)-40 dBc
Total Harmonic Distortion1%
S/N Ratio40 dB
Frequency RangeSquare: 100 mHz to 15 MHz
Rise/Fall Time< 15ns
Overshoot< 3 %
Duty CycleSquare: 50% Pulse: 0.4% to 99.6%
Min. Pulse Width30ns
Jitter500 ps
Frequency Range100 mHz to 1MHz
Symmetry0 to 100%


Spectrum Analyzer

Frequency RangeDC~2.5GHz Max, dual channel with spectrogram (based on Advanced FFT). Notice: Frequency which exceeds analog front end bandwidth is uncalibrated
Span1kHz~2.5GHz (Max.)
Resolution Bandwidth1Hz~2.5MHz (Max.)
Reference Level-80dBm to +40dBm in steps of 5dBm
Vertical UnitsdBV RMS; Linear RMS; dBm
Vertical Position-12divs to +12divs
Vertical Scale1dB/div to 20dB/div in a 1-2-5 Sequence
Displayed Average Noise Level1V/div ‹- -40dBm, Avg :16
100mV/div ‹- -60dBm, Avg :16
10mV/div ‹- -80dBm, Avg :16
Spurious Response 2nd harmonic distortion < 35dBc
3rd harmonic distortion < 40dBc
Frequency Domain Trace TypesNormal; Max Hold; Min Hold; Average (2 ~ 256)
Detection MethodsSample; +Peak; -Peak; Average
FFT WindowsFFT Factor:
Hanning 1.44
Rectangular 0.89
Hamming 1.30
Blackman 1.68


Logic Analyzer (Option)

Sample Rate1GSa/s
Record LengthPer Channel 10M points (max)
Input Channels16 Digital (D15 - D0)
Trigger typeEdge, Pattern, Pulse Width, Serial bus (I2C,SPI, UART, CAN, LIN), Parallel Bus
Thresholds QuadSettable thresholds for:
D0-D3, D4-D7, D8-11, D12-15
Threshold selectionsTTL, CMOS(5V,3.3V,2.5V), ECL, PECL,0V ,User Defined
User-defined Threshold Range±5V
Maximum Input Voltage±40 V
Minimum Voltage Swing±250 mV
Vertical Resolution1 bit


Frequency Response Analyzer

Frequency Range20Hz to 25MHz
Input and Output SourcesChannel 1 ~ 2
Number of Test Points10, 15, 30, 45, 90 points per decade selectable for logarithm scale; 2 ~ 1000 points selectable for linear scale
Dynamic Range> 80dB (typical)
Test Amplitude10mVpp to 2.5Vpp into 50Ω, 20mVpp to 5Vpp into High-Z, Fixed test amplitude or custom amplitude for each decade.
Test ResultsLogarithmic or linear overlaid gain and phase plot, may also overlay with reference plots for cross comparison. Test results saved in csv format for offline analysis.
Manual MeasurementsTracking gain and phase markers
Plot ScalingAuto-scaled during test



TFT LCD Type10.2" TFT LCD WVGA color display
Display Resolution800 horizontal × 480 vertical pixels (WVGA)
Waveform DisplayDots, vectors, variable persistence (16ms~4s), infinite persistence, gray or color waveforms.
Waveform Update Rate200,000 waveforms per second, maximum
Display Graticule8 x 10 divisions
Display ModeYT, XY



USB PortUSB 2.0 High-speed host port X1, USB High-speed 2.0 device port X1
Ethernet Port (LAN)RJ-45 connector X1, 10/100Mbps with HP Auto-MDIX
Go-NoGo BNC5V Max/10mA open collector output X1
Power Supply±12V / 600mA for current probe use.
ReceptaclesTwo sets of power supply receptacles.
RS232CDB-9 male connector X1
VGA Video PortDB-15 female connector X1, monitor output for display on VGA monitor
Optional GPIB ModuleFully programmable with IEEE488-2 compliance
Kensington Style LockRear-panel security slot connects to standard Kensington-style lock.



Multi-language menuAvailable
Operation EnvironmentTemperature: 0°C to 50°C. Relative Humidity ≤ 80% at 40°C or below; ≤ 45% at 41°C ~ 50°C.
On-screen helpAvailable
Time clock Time and Date, Provide the Date/Time for saved data
Internal Flash Disk800M bytes Single-Level Cell flash memory
Installed APPGo/NoGo, DVM, DataLog, Digital Filter, Frequency Response Analyzer, Mask, Mount Remote Disk, Demo
User Define KeyUser can select one of the several different preset functions as shortcut key.
Line Voltage rangeAC 100V ~ 240V, 50Hz ~ 60Hz, auto selection. power consumption:100W
WeightApprox. 4.6kg
Dimensions420mm(W) X 253mm(H) X 113.8mm(D)

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