Part Number: RCV420
I need to convert 4-20 mA to 0-5V.
I refer to the datasheet (FIGURE 12. 4-20mA to 5-0V Conversion)
I would like to ask about the connection of the circuit.1.PIN3-floating?2. Is PIN4-connected to ground or -VDD?3. Can the PIN14 output be connected to a 20k resistor to ground?
Refer to Figure 10 and Figure 1 in the RCV420 datasheet for clarity of connections. Attached is an additional app note you might find useful.
Let me know if things are still not clear.
Tim Green, MGTSSenior Analog Applications Engineer
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In reply to Tim Green1:
After refer to Figure 10 and Figure 1 ,So in Figure 12 PIN4-connected -VDD right?
I still don't understand
1.PIN3-floating in Figure 12 ?
2.Can the PIN14 output be connected to a 20k resistor to ground? (Can I pump 0.25mA from the OP ?)
In reply to John Lin41:
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