Part 2

492 Plug-In Assembly Configuration/VOLTAGE SOURCETERflINAL BLOCKISTRAIN RELIEFTIE POINTSFigure 142. Option 10 - Dual Output, 0 to f 10 V Voltage DIA Converter (VDACINow, if we add remote sensing (+ SENSE and - SENSE leads) as shown in Figure143 (b), we can measure the actual voltage across RL. With remote sensing, theVDAC automatically adjusts the output to compensate for the IR drop in the leads.Thus, for example, if you now program the VDAC for a + 1.0000V output and theIR drop in the leads is 0.1000 V, the VDAC will output + 1.1000V so that the loadvoltage remains constant at + 1.0000V.MonotonicityAnother important feature of the VDAC is monotonicity. The VDAC has monotonicityover its operating range which guarantees that the output will never change in adirection different than that programmed. For example, if the VDAC is set for a 5mV output and is then programmed for a 10 mV output, the actual output will notbe less than 5 mV. Or, if the VDAC is set for 5 mV and is then programmed fora 2.5 mV output, the actual output will not be greater than 5 mV.Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com