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ADR363B Datasheet(PDF) 10 Page - Analog Devices |
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ADR363B Datasheet(HTML) 10 Page - Analog Devices |
10 / 20 page ![]() ADR360/ADR361/ADR363/ADR364/ADR365/ADR366 Rev. A | Page 10 of 20 TERMINOLOGY Temperature Coefficient The change of output voltage with respect to operating temperature changes normalized by the output voltage at 25°C. This parameter is expressed in ppm/°C and can be determined by ( ) ( ) () () 6 1 2 1 2 O 10 C 25 C] ppm/ [ × − × ° − = ° T T V T V T V TCV O O O where: VO (25°C) = VO at 25°C. VO (T1) = VO at Temperature 1. VO (T2) = VO at Temperature 2. Line Regulation The change in output voltage due to a specified change in input voltage. This parameter accounts for the effects of self-heating. Line regulation is expressed in either percent per volt, parts- per-million per volt, or microvolts per volt change in input voltage. Load Regulation The change in output voltage due to a specified change in load current. This parameter accounts for the effects of self-heating. Load regulation is expressed in either microvolts per milliampere, parts-per-million per milliampere, or ohms of dc output resistance. Long-Term Stability Typical shift of output voltage at 25°C on a sample of parts subjected to a test of 1,000 hours at 25°C. ( ) ( ) 1 0 t V t V V O O O − = Δ [] ( ) ( ) () ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ × = Δ 6 0 1 0 10 ppm t V t –V t V V O O O O where: VO (t0) = VO at 25°C at Time 0. VO (t1) = VO at 25°C after 1,000 hours operation at 25°C. Thermal Hysteresis The change of output voltage after the device is cycled through temperature from +25°C to –40°C to +125°C and back to +25°C. This is a typical value from a sample of parts put through such a cycle. ( ) TC O O HYS O V V V _ _ C 25 − ° = [] ( ) () 6 _ _ 10 C 25 C 25 ppm × ° − ° = O TC O O HYS O V V V V where: VO (25°C) = VO at 25°C. VO_TC = VO at 25°C after temperature cycle at +25°C to –40°C to +125°C and back to +25°C. |
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