| Written by Justblair |
|  Today in a blog post SeeedStudio released a surprise announcement about the new entry to their range of pocket oscilloscopes. I reviewed an engineering sample of the DSO Quad, 4 channel digital storage oscilloscope last week and was impressed with the specifications of the little device. However Seeedstudio have by overclocking the AD9288-40 dual A/D converter increased the smaple rate on the analogue channels from 36MS/s to 72MS/s. That is quite a jump in specification. The DSO Quad was already a very attractive buy, but with the improved sample rate it's just getting better and better. We are still waiting for a final price from SeeedStudio, but they have released what they describe as the final specification: Analog channel * 2 | [CH_A] [CH_B] | | Digital channel * 2 | [CH_C] [CH_D] | | Vertical Scale | 20mV-10V/div (1-2-5 step) on x1 probe / 200mV -100V/div (1-2-5 step) on x10 probe | | Vertical resolution | 8 bit | | Input coupling | AC/DC | | Max input voltage | 80Vpp (x1 probe) / 400Vpp (x10 probe) | | Storage | 4K per channel / 8K on single channel | | Software trigger type | edge, pulse, level (to be added) | | Hardware trigger type | edge | | Trigger source | CH1/CH2/EXT | | Trigger mode | Auto, Normal, Single, SCAN, None | | Test Signal generater | 10Hz to 8Mhz 2.8Vpp Square Wave, duty circle 10~90% adjustable / 10Hz to 20Khz 2.8Vpp Sin, Square, Saw, Triangle wave | | Storage | internal 2MB USB disk, BMP, DAT file | | Auto measure | Vmax, Vmin, Vpp, Vavr, Vrms, Freq, Period, Pulse, Duty | | Cursor measurement | Level, Voltage | | Display mode | CH1, CH2, EXT, CH1+CH2, CH1-CH2, CH1*CH2 | | Sampling mode | real time | | Sampling rate | 30S/s – 72MS/s | | Power | Lipo battery | | Dimension | 98 * 60 * 14.5 (mm) | | Weight | 80g (without battery) | | Accesories within Pack | 2 mcx osilloscope probe, 2 mcx digital probe |
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