EIM Lab-OnThe-Go Manual page 57

Integrated Signal Generator and Oscilloscope
Limitations of this device
Zoolark may serve as a handy and immediate assisting tool for qualitative
measuring, testing and debugging of your circuits, though the
performance is not comparable to the professional benchtop instruments
which are more suitable for industrial and scientific applications that
require precise quantitative results. Here are some limitations you need to
pay attentions:
Generating output signals with Zoolark
• The triangular wave begins to lose linearity for 500kHz or higher
frequencies
• Due to the limited slew rate of the internal Op-amp, the square wave
edges are no longer steep at 200kHz or higher
• Using PWM mode generates better square wave signals by setting
duty cycle to 50%
• The actual output voltages at +5V, -5V and +3.3V ports have 10%
offsets, but they are suitable for most microcontrollers or ICs being
rated for 5V or 3.3V
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