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LM81 数据表(PDF) 4 Page - National Semiconductor (TI) |
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LM81 数据表(HTML) 4 Page - National Semiconductor (TI) |
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4 / 32 page  Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Positive Supply Voltage (V +) +6.0V Voltage on Any Input or Output Pin: +12Vin, T_CRIT_A −0.3V to +15V A0, A1, DACOut −0.3V to (V ++ 0.3V) +2.5Vin, +3.3Vin (Note 3) All other pins −0.3V to +6V Input Current at any Pin (Note 4) ±5mA Package Input Current (Note 4) ±20 mA Maximum Junction Temperature (T J max) 150˚C ESD Susceptibility (Note 6) Human Body Model 2000V Machine Model 200V Soldering Information MTC Package (Note 7) : Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 235˚C Storage Temperature −65˚C to +150˚C Operating Ratings (Notes 1, 2) Operating Temperature Range T MIN ≤ TA ≤ TMAX LM81 −55˚C ≤ T A ≤ +125˚C Specified Temperature Range T MIN ≤ TA ≤ TMAX LM81 −40˚C ≤ T A ≤ +125˚C Junction to Ambient Thermal Resistance ( θ JA (Note 5)) NS Package Number: MTC24B 95˚C/W Supply Voltage (V +) +2.8V to +3.8V V IN Voltage Range: +12Vin −0.05V to +15V +5Vin −0.05V to +6.8V +3.3Vin −0.05V to +4.6V +2.5Vin −0.05V to +3.6V VID0 - VID4, Vccp −0.05V to +6.0V All other inputs −0.05V to (V + + 0.05V) DC Electrical Characteristics The following specifications apply for +2.8V DC ≤ V + ≤ +3.8V DC,RS = 500Ω, unless otherwise specified. Boldface limits apply for T A = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C. (Note 8) Symbol Parameter Conditions Typical Limits Units (Note 9) (Note 10) (Limits) POWER SUPPLY CHARACTERISTICS I + Supply Current Interface Inactive 400 900 µA (max) TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS Error −40˚C ≤ T A ≤ +125˚C ±3 ˚C (max) Resolution 9-bit mode 12-bit mode 0.5 0.0625 ˚C (min) ˚C (min) LM81 ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS Resolution 8 bits TUE Total Unadjusted Error +2.5Vin, +3.3Vin, +5Vin (Notes 11, 12) +2 +0.8 % (max) % (min) Vccp1, Vccp2 (Note 11) +2.4 0 % (max) % (min) +12Vin (Notes 11, 12) +3.1 +1.2 % (max) % (min) DNL Differential Non-Linearity ±1 LSB (max) PSS Power Supply Sensitivity ±0.4 %/V t C Total Monitoring Cycle Time (Note 13) 9-bit Temp Resolution 12-bit Temp Resolution 0.4 0.82 1.2 sec sec (max) sec (max) ADC INPUT CHARACTERISTICS Input Resistance (All analog inputs except Vccp1 and Vccp2) 115 90 k Ω (min) Vccp1 and Vccp2 DC Input Current ±1µA www.national.com 4 |
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