SeeedStudio Release Final Specifications for DSO Quad, 72MS/s Surprise Upgrade

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