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ISL21032CPH306Z-TK Scheda tecnica(PDF) 6 Page - Intersil Corporation |
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ISL21032CPH306Z-TK Scheda tecnica(HTML) 6 Page - Intersil Corporation |
6 / 7 page 6 FN6239.2 September 28, 2009 If a device is expected to pass through luggage X-ray machines numerous times, it is advised to mount a 2-layer (minimum) PC board on the top, and along with a ground plane underneath will effectively shield it from from 50 to 100 passes through the machine. Since these machines vary in X-ray dose delivered, it is difficult to produce an accurate maximum pass recommendation. Noise Performance and Reduction The output noise voltage in a 0.1Hz to 10Hz bandwidth is typically 30µVP-P. The noise measurement is made with a bandpass filter made of a 1 pole high-pass filter with a corner frequency at 0.1Hz and a 2-pole low-pass filter with a corner frequency at 12.6Hz to create a filter with a 9.9Hz bandwidth. Wideband noise is reduced by adding capacitor to the output, but the value should be limited to 1nF or less to insure stability. Temperature Drift The limits stated for output accuracy over-temperature are governed by the method of measurement. For the -40°C to 130°C temperature range, measurements are made at +25°C and the two extremes. This measurement method combined with the fact that FGA references have a fairly linear temperature drift characteristic insures that the limits stated will not be exceeded over the temperature range. FIGURE 15. PRECISION LOW NOISE, LOW DRIFT, 0.6V, 50mA REFERENCE VIN = 5V 2N2905 0.6V/50mA 0.001µF VIN VOUT GND ISL21032 R = 200 Ω ISL21032 |
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Descrizione simile - ISL21032CPH306Z-TK |
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