User manual

Analog inputs
• Four single-ended analog inputs
• 12bit resolution
• Analog input measurement range: 0 - 3,3V
• Maximum allowed input voltage: 5V
• Operational amplifier inputs
• Up to 188 kSamples/s (total sampling rate)
Floating inputs
To keep input resistance at a maximum, all analog inputs are left floating. The analog
inputs are not pulled to GND internally. Readings from floating inputs have undefined
results.
Over-voltage protection
CEBO-STICK analog inputs are rated for 0 - 3,3V with respect to GND. Keep voltages
on any analog input within this range to guarantee valid readings on adjacent channels.
To limit current flow in case of over-voltage an internal series resistor is added at all
input channels. Make sure voltages are within the Input Voltage Range at any time to
prevent CEBO-STICK from damage.
Pin Signal Description
9 AI-0 Analog input terminal 0
8 AI-1 Analog input terminal 1
7 AI-2 Analog input terminal 2
6 AI-3 Analog input terminal 3
5 GND GND power terminal
CEBO-STICK Reference Manual Cesys GmbH
[ v1.1 ] 7/28
Figure 2: Analog input pin assignment