Brand: GW Instek
Product Code: GDS-122
Availability: In Stock

Bandwidth (MHz):  

The GDS-122 is a reliable and handy instrument for all test and electronic engineers. This model is designed to carry out complicated on-site tests. The Dual-channel unit features 20MHz of bandwidth with a sampling rate of 100MS/s along with multimeter functionality. The color LCD display with a resolution of 320 x 240 helps you to read waveforms easily, especially when displaying a lot of data or multiple waveforms. The compact design with the total weight of 690g allows engineers to carry it around easily. The protective cover of the unit is insulated and specially designed to guarantee endurance and reliability in tough environments. The rechargeable Li-ion battery ensures convenience for on-site testing.



* 20MHz Bandwidth
* 100MS/s Real-Time Sampling Rate
* True RMS Multimeter: Volt, AMp, Ohm, Continuity, Diode
* Dual Independent Floating Isolated Channels
* Trigger Mode: Free Run, Single Shot, Edge, Video
* USB Interface
* 6 Hour Capacity Li-ion Rechargeable Battery
* 3.8" Color LCD, Resolution: 320 x 240
* Light Weight: 690g





Channels 2
Analog Bandwidth 20MHz
Single Bandwidth Full bandwidth
Rise Time 17.5ns
Sensitivity 5mV/div ~ 5V/div at the BNC input
DC Gain Accuracy ±5%
DC Measurement Accuracy ±(5% reading + 0.05div): average sampling
Analog Digital Converter Resolution 8 bits, synchronously sampling on both channels
Displacement Range ±50V (500mV ~ 5V), ±1V (5mV ~ 200mV)
Low Frequency Response AD Coupling, -3dB ±5Hz at the BNC input


Sources CH1, CH2
Trigger Sensitivity 2div, peak-to-peak value
Trigger Sensitivity Edge Trigger DC coupling: 1div (full bandwidth)
AC coupling: same as the DC coupling (≧50Hz)
Trigger Level Range ±6div from the screen center
Trigger Level Accuracy ±0.3div typical
Trigger Displacement 655div (pre-trigger), 4div (post-trigger)
50% Level Setting Input signal ≧50Hz (typical)
Video Trigger NTSC, PAL, SECAM (any line or frequency)


Sampling Rate 10S/s ~ 100MS/s
Waveform Interpolation sinx/x
Record Length 6k points on each channel
Scan Speed 5ns/div ~ 5s/div, 1-2.5-5 step
Sampling Rate and Relay Time Accuracy ±100ppm (≧1ms)
Time Interval Accuracy (Full Bandwidth) Single: ±(1 sampling interval time + 100ppm x reading + 0.6ns)
Average >16: ±(1 sampling interval time + 100ppm x reading + 0.4ns)


Input Coupling DC, AC
Input Impedance 1MΩ ±2%, connected in parallel with 20pF±3pF
Probe Attenuation Coefficient 1X, 10X, 100X, 1000X
Maximum Input Voltage 400V (peak)
Channel Delay Time 150ps (typical)


Sampling Mode Normal, Peak Detect, Average
Sampling Rate 100MSa/s


Cursor Measurement Voltage difference and Time difference between cursors
Auto Measurement Peak-to-peak, Average, Root mean square, Frequency, Cycle


Input Impedance 10MΩ
Voltage VDC: 400mV, 4V, 400V ±(1% + 1digit)
VDC: 4V, 40V, 400V ±(1% + 3digits)
Maximum Input Voltage DC 400V, AC 400V (virtual value)
Frequency 40Hz ~ 400Hz
DC Current 40mA, 400mA ±(1.5% + 1digit), 20A ±(3% + 3digits)
AC Current 40mA ±(1.5% + 3digits), 400mA ±(2% + 1digit), 20A ±(5% + 3digits)
Impedance 400Ω ±(1% + 3digits), 4kΩ, 40kΩ, 400kΩ, 4MΩ ±(1% + 1digit), 40MΩ ±(1.5% + 3digits)
Capacitance 51.2nF ~ 100uF ±(3% + 3digits)
Diode 0V ~ 1.5V on/off measurement < 50Ω (±30Ω) beep


Display Type 3.8" color liquid crystal display
Display Resolution 320 (horizontal) x 240 (vertical) pixels
Display Color 4096 colors
Power Supply 100 ~ 240VAC, 50Hz, CATII
Power Consumption <6W
Operating Temperature Battery Operation: 0 ~ 50℃ (32 ~ 122F)
Power adaptor operation: 0 ~ 40℃ (32 ~ 104F)
Dimensions & Weight 180 x 115 x 40 mm; Approx 0.69kg


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