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Typical Output Drift of an LDX-3412

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Typical Output Drift of an LDX-3412

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This technical note presents the results of output drift measurement tests performed on three production LDX-3412 Precision Current Sources.The measurement setup is shown in Figure 1. Each LDX-3412 was placed in a temperature controlled oven and stabilized for one hour at 25o C. Current measurements were taken by measuring the voltage across an ultra-stable precision resistor which was also temperature controlled. The starting current was 100 mA. Raw data was fed to a computer and converted to drift data in parts per million (ppm).

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