GW Instek GDS-2202E - 200MHz, 2-Channel, Digital Oscilloscope
The GDS-2000E digital oscilloscope features bandwidth selections of 200MHz, 100MH, and 70MHz. Two-channel model provides 1GSa/s real-time sampling rate for each channel; four-channel model provides 1GSa/s maximum real-time sampling rate. The 8-inch 800*480 TFT LCD display and the minimum 1mV/div vertical range allow the GDS-2000E series to measure complex feeble signals and clearly display measurement results.
With respect to the memory depth, the GDS-2000E series digital oscilloscope provides 10M long memory for users to completely retrieve and analyze waveforms. Users, based upon the application requirements, can select 1K, 10K, 100K, 1M or 10M memory depth. Short memory depth collocating with the high sampling rate allows users to observe fast-changing waveforms and, on the other hand, long memory depth aims for continuously changing waveforms. The GDS-2000E series is equipped with waveform search and segmented memory functions to expand the flexible applications of 10M long memory. The segmented memory can be divided the maximum into 29,000 sections for users to bypass any unimportant waveforms so as to swiftly search all required waveforms. With the function, more meaningful waveforms can be saved and target waveforms can be displayed rapidly. With the waveform search function, users can rapidly search desired waveforms according to the required trigger conditions.
Waveform Update Rate of 120,000 wfm/s and VPO Waveform Display Technology
The GDS-2000E digital oscilloscope allows users to easily and completely observe inrush signals and rare transient waveforms to increase waveform debugging efficiency by using features, including advanced VPO (Visual Persistence Oscilloscope) signal processing technology, waveform update rare as high as 120,000 wfm/s, and multi-layered afterglow display to enhance waveform display efficiency. Oscilloscope with VPO technology displays signals with three dimensional waveforms constructing by amplitude, time and signal strength to show each waveform point. 256 color gradients yield clear waveform changes. Comparing with the conventional digital storage oscilloscope, the GDS-2000E series provides more natural and more genuine signal display effect which is very close to the original analog signal.
Fast Retrieval, Precision Measurement
Low Background Noise----Beneficial to Small Signal Measurement
For small signal measurement, oscilloscope’s background noise will affect the measurement results. The brand new GDS-2000E low noise amplifying circuit can tremendously improve overall noise interference to produce the genuine signal demonstration. As shown in the above diagram, the GDS-2000E series has merely the background noise of 640uV under 2mV/div that is superior to the same category oscilloscopes from competitors.
(*): The measurement data were retrieved from actual tests.
Small Signal Autoset Retrieving Capability
The Autoset function of the GDS-2000E series can retrieve waveform as fast as 0.7 seconds. The GDS-2000E series assists users to rapidly retrieve waveforms of small signals equivalent to 8mV/30Hz.
Dual Display Screen Zoom-In and Play/Pause Functions
The GDS-2000E series provides the dual display screen zoom-in function to simultaneously display waveforms and major target areas. Users can zoom in display area by adjusting time/div. Under zoom-in mode, waveform can be played or paused so as to automatically view all input waveforms on the moving zoom-in screen. User can swiftly identify each desired event. Manual control play speed and direction can be adjusted according to users’ requirements. Press “Pause” to stop the play function. With “waveform search”, all desired events from different stages can be rapidly identified and examined back and forth. The GDS-2000E series is capable of swiftly searching signals and observing signals’ details. 10M long memory depth provides the function of complete waveform retrieval and analysis.
36 Items of Auto Measurement Selection and the Statistics Function
The GDS-2000E series soundly provides 36 measurement items. Based upon the parameters such as voltage, current, time, frequency, and delay measurement, users can decide which measurement items to choose. On the single display screen, the GDS-2000E series provides 8 measurement selections. The statistics mode can also be selected for users to analyze the mean value, the maximum, the minimum, and standard deviation of the retrieved waveforms to ensure signal’s integrity and identify abnormal waveforms.
Digital Filter Function
Engineers are often troubled by noise interference while measuring signals in the electric circuit tests. The GDS-2000E series features the digital filter function which can be set to high pass or low pass digital filter. Digital filter allows users to independently set filter frequency for each channel. The tracking on function rapidly sets same filter frequency for all channels.
Data Log Function
Users, via the data log function, can observe waveform changes in long periods of time to ensure product reliability or measure sporadically appeared signals. The data log function, based on the requirements, can set record time and interval. Record time can be selected from 5 minutes to 100 hours, and record interval is 5 seconds, the minimum. Waveform type for record data and CSV file format for each channel can also be selected. Data can be stored in USB drive, the GDS-2000E series or the remote computer via LAN.
Support I2C/SPI/UART/CAN/LIN Serial Bus Trigger and Decoding Function
The serial bus technology has been widely applied in the present embedded application design. How to rapidly and correctly trigger and analyze serial bus data has posed a difficult challenge to engineers. The GDS-2000E series provides serial bus analysis function and 10M long memory depth to trigger, decode, and analyze frequently used I2C, SPI ,UART serial bus and CAN/LIN bus, which is often used by automotive communications.
Waveform Search Function
Users can rapidly search desired waveforms according to the trigger condition. After activating the search function, hollow inverted triangles will show the location met the trigger condition. The upper left hand corner Overall will show the total number of waveforms met the trigger condition.
Users can set waveform search by the trigger condition such as Edge, pulse width, Runt, Rise/Fall, and Bus. When the trigger condition is met, hollow inverted triangles will appear. Users can save all marks to compare with the next input signal.
The front panel of the GDS-2000E series controls waveform zoom-out and play/pause function to swiftly identify each desired event. The function allows users to conveniently complete waveform search and save marks for rapid comparison and analysis.
Segmented Memory Function
To achieve the most ideal application for memory depth, the GDS-2000E series has the built-in segmented memory function. The segmented memory function allows users to select the desired important signals for observation. Hence, insignificant signals can be neglected and serial bus decoding; pulse or inrush signals can be identified when retrieving signals.
The segmented memory function of the GDS-2000E series allows users to select the number of sections. The maximum sections can be selected are 29,000. After activating the function, users can select and observe waveform for each segment by turning the Variable knob. The ultimate application of memory depth, therefore, is completely realized.
Users can also select “analyze segments” to conveniently obtain the analysis results.
1M FFT Frequency Domain Display Function
The FFT function of the GDS-2000E Series provides the maximum 1M display for more precision frequency domain display. The function supports four window displays, including Rectangular, Hamming, Hanning, and Black-harris. Users select window display for frequency domain analysis according to test requirements. The GDS-2000E series not only provides the FFT function but also FFTrms, vertical adjustment, and local zoom-in functions for users to adjust waveforms of frequency domain by their requirements. Via rapid waveform update rate and waveform search functions, users can precisely observe the test results of frequency domain.
Digital Voltage Meter
The integrated digital voltage meter provides three-digit voltage meter and five-digit frequency counter. Its function includes tests for AC rms, DC, DC rms, period and frequency. Under the limited resources, engineers can simultaneously monitor voltage and frequency as well as conduct complex measurement for signal trigger to elevate the R&D efficiency. This feature is very convenient for users to grasp the actual issue, diagnose and debug system circuit.
- 200/100/70MHz Bandwidth Selection; 2 or 4 Channels
- 1GSa/s Real-Time Sampling Rate for Each Channel (2ch model) ; 1GSa/s Maximum Real-Time Sampling Rate (4ch model)
- Standard 10M Maximum Memory Depth and VPO Waveform Display Technology
- Waveform Update Rate of 120,000 wfm/s
- 8 ” WVGA TFT LCD Display
- FFT with Maximum 1M points to Provide Higher Frequency Domain Resolution Measurement
- High and Low Pass Digital Filter Functions
- 29,000 Sections of Segmented Memory and Waveform Search Functions
- I2C/SPI/UART/CAN/LIN Serial Bus Trigger and Decoding Function
- Data Log Function Tracks Signal Changes Up To 100 hours
- Provide Remote Internet Storage Function
|Channels||2ch + Ext|
|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, FFTrms ,User Defined Expression.|
FFT: Spectral magnitude. Set FFT Vertical Scale to Linear RMS or dBV RMS FFT Window : Rectangular, Hamming , Hanning, Blackman-Harris
|Source||CH1 ,CH2, CH3, CH4, Line, EXT*|
|*EXT only on dual channel models|
|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, time out, Event-Delay (~65535 events), Time-Delay (Duration,4nS~10S), Bus|
|Coupling||AC,DC,LF rej. ,HF rej. ,Noise rej.|
External Trigger (2ch model only)
|Sensitivity||DC ~ 100MHz Approx. 100mV|
|100MHz ~ 200MHz Approx. 150mV|
|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)
|Acquisition Mode||ormal, Average, Peak Detect, Single|
|Peak Detection||2ns (typical)|
|Average||selectable from 2 to 256|
|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||36 sets: Pk-Pk, Max, Min, Amplitude, High, Low, Mean, Cycle Mean, RMS, Cycle RMS, Area, Cycle Area, ROV Shoot, FOV Shoot, RPRE Shoot, FPRE Shoot, Frequency, Period, Rise Time, Fall Time, +Width, -Width, Duty Cycle, +Pulses, -Pulses, +Edges, -Edges, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF, Phase ,Cursor measurements|
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|
|TFT LCD Type||8" TFT LCD WVGA color display|
|Display Resolution||800 horizontal × 480 vertical pixels (WVGA)|
|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 High-speed 2.0 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.|
|operation environment||Temperature: 0°C to 50°C. Relative Humidity ≤ 80% at 40°C or below; ≤ 45% at 41°C ~ 50°C.|
|Time clock||Time and Date ,Provide the Date/Time for saved data|
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