4.1.2 Control input as analog input
To use the control input as an analog input, insert a resistance between the control input and con-
trol input ground pins. The four-channel selector knob, for example, contains a switch that
changes the resistance between the control input and control input ground pins.
Figure 11: Analog In
4.2 Digital output
The digital output circuitry consists of an opto-isolated, solid-state relay for switching power to
external loads. Table 4, "Digital output rating and dissipation" below summarizes the AI-Bravo's
digital output opto-isolated field effect transistor (FET) values:
Type
Opto-isolated FET
Maximum continuous current rating
120 mA
Maximum power dissipation
300 mW
Table 4: Digital output rating and dissipation
Figure 12, "Digital output circuitry" below shows the AI-Bravo's digital output circuitry:
Figure 12: Digital output circuitry
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AI-Bravo Technical User Guide (Rev. B, Ver. 0)