What the 20 mA supply tells you about the loop budget
The Texas Instruments XTR105P is a current transmitter with differential input and voltage output, drawing 20 mA from the supply. That 20 mA figure is the device's own quiescent plus signal current — in a typical 4-20 mA loop, the transmitter's consumption sits below the loop minimum, leaving headroom for the sensor excitation and the line driver. If you are budgeting the total loop power, the XTR105P's 20 mA supply current is the floor the rest of the loop must sit on top of.
Temperature grade and package fit for the board
The 14-DIP (0.300", 7.62mm) through-hole package with 14-PDIP supplier device package means it sits in a standard 0.300-inch wide DIP socket or solders directly into plated through-holes — no fine-pitch alignment, no reflow profile to tune. The 20 mA supply current is consistent across the full temperature range; no derating curve to chase for ambient shifts.
