データシートサーチシステム |
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LM40 データシート(PDF) 7 Page - National Semiconductor (TI) |
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LM40 データシート(HTML) 7 Page - National Semiconductor (TI) |
7 / 27 page PIN # Pin Name Pin Circuit All Input Structure Circuits 1NC A Circuit A Circuit C Circuit B Circuit D 2 GND B 3 V+/ 3.3V SB B 4 SWD A 5 ADD A 6 +1.2V C 7 +2.5V C 8 D1- D 9 D1+ E 10 D2- D 11 D2+ E Circuit E 12 +5V C 13 +12V C 14 NC A Note 4: Thermal resistance junction-to-ambient in still air when attached to a printed circuit board with 1 oz. foil is 148 ˚C/W. Note 5: Human body model, 100 pF discharged through a 1.5 k Ω resistor. Machine model, 200 pF discharged directly into each pin. Note 6: Reflow temperature profiles are different for lead-free and non lead-free packages. Note 7: “Typicals” are at TA = 25˚C and represent most likely parametric norm. They are to be used as general reference values not for critical design calculations. Note 8: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 9: The supply current will not increase substantially with a SensorPath transaction. Note 10: Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the internal power dissipation of the LM40 and the thermal resistance. See (Note 4) for the thermal resistance to be used in the self-heating calculation. Note 11: TUE , total unadjusted error, includes ADC gain, offset, linearity and reference errors. TUE is defined as the "actual Vin" to achieve a given code transition minus the "theoretical Vin" for the same code. Therefore, a positive error indicates that the input voltage is greater than the theoretical input voltage for a given code. If the theoretical input voltage was applied to an LM40 that has positive error, the LM40’s reading would be less than the theoretical. Note 12: The accuracy of the LM40CIMT is guaranteed when using the thermal diode of an Intel 90 nm Pentium 4 processor or any thermal diode with a non-ideality factor of 1.011 and series resistance of 3.33 Ω. When using a MMBT3904 type transistor as a thermal diode the error band will be typically shifted by -4.5 ˚C. Note 13: This specification is provided only to indicate how often temperature and voltage data are updated. Note 14: The output fall time is measured from (VIH min)to(VIL max). Note 15: The output rise time is measured from (VIL max)to(VIH min). Note 16: The rise and fall times are not tested but guaranteed by design. www.national.com 7 |
同様の部品番号 - LM40 |
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同様の説明 - LM40 |
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