Datasheet

Figure 1. The Campbell subsystem design block diagram.
Features Applications
High accuracy
4–20mA current loop input
0.2V to 4.096V input range
Isolated power and data
Small printed circuit board (PCB) area
Device drivers
Example C source code
Pmod
™
-compatible form factor
Industrial sensors
Process control
Industrial automation
PLC
Medical
Detailed Description of Hardware
The Pmod specification allows for both 3.3V and 5V modules as well as various pin
assignments. This module is designed only for a supply voltage of 3.3V and uses
the SPI pin assignments as illustrated on the right.
The power requirements are shown in Table 1. The currently supported platforms
and ports are shown in Table 2.
Table 1. Power Options for the Campbell Subsystem Reference Design
Power Type
Jumper
Shunt
Input
Voltage (V)
Input Current
(mA, typ)
On-board isolated
power
JU3: 1–2
JU4: 2–3
3.3 72.5
External power
JU3: 2–3
JU4: 1–2
12 10.7
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