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ADC12441883 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI) |
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ADC12441883 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI) |
4 / 14 page Digital and DC Electrical Characteristics The following specifications apply for DVCC e AVCC ea50V Vb eb50V VREF ea50V and fCLK e 20 MHz unless otherwise specified Boldface limits apply for TA e TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 6 and 7) (Continued) Symbol Parameter Conditions Typical Limit Units (Note 9) (Notes 10 19) (Limits) IOUT TRI-STATE Output Leakage VOUT e 0V b 001 b 3 m A (max) Current VOUT e 5V 001 3 m A (max) ISOURCE Output Source Current VOUT e 0V b 20 b 60 mA (min) ISINK Output Sink Current VOUT e 5V 20 80 mA (min) DICC DVCC Supply Current fCLK e 2 MHz CS e ‘‘1’’ 1 2 mA (max) AICC AVCC Supply Current fCLK e 2 MHz CS e ‘‘1’’ 28 6 mA (max) Ib Vb Supply Current fCLK e 2 MHz CS e ‘‘1’’ 28 6 mA (max) AC Electrical Characteristics The following specifications apply for DVCC e AVCC ea50V Vb eb50V tr e tf e 20 ns unless otherwise specified Boldface limits apply for TA e TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 6 and 7) Symbol Parameter Conditions Typical Limit Units (Note 9) (Notes 10 19) (Limits) fCLK Clock Frequency 05 MHz (min) 40 20 MHz (max) Clock Duty Cycle 50 % 40 % (min) 60 % (max) tC Conversion Time 27(1fCLK) 27(1fCLK) a 300 ns (max) fCLKe 20 MHz 135 m s tA Acquisition Time RSOURCE e 50X 7(1fCLK) 7(1fCLK) a 300 ns (max) (Note 15) fCLK e 20 MHz 35 m s tZ Auto Zero Time 26(1fCLK) 26(1fCLK) (max) fCLK e 20 MHz 13 m s tCAL Calibration Time 1396(1fCLK) max fCLK e 20 MHz 698 706 m s (max) tW(CAL)L Calibration Pulse Width (Note 16) 60 200 ns (min) tW(WR)L Minimum WR Pulse Width 60 200 ns (min) tACC Maximum Access Time CL e 100 pF (Delay from Falling Edge of 50 85 ns (max) RD to Output Data Valid) t0H t1H TRI-STATE Control RL e 1kX (Delay from Rising Edge of CL e 100 pF 30 90 ns (max) RD to Hi-Z State) tPD(INT) Maximum Delay from Falling Edge of 100 175 ns (max) RD or WR to Reset of INT Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur Operating Ratings indicate conditions for which the device is functional but do not guarantee specific performance limits For guaranteed specifications and test conditions see the Electrical Characteristics The guaranteed specifications apply only for the test conditions listed Some performance characteristics may degrade when the device is not operated under the listed test conditions Note 2 All voltages are measured with respect to AGND and DGND unless otherwise specified Note 3 When the input voltage (VIN) at any pin exceeds the power supply rails (VIN k Vb or VIN l (AVCC or DVCC) the current at that pin should be limited to 5 mA The 20 mA maximum package input current rating allows the voltage at any four pins with an input current limit of 5 mA to simultaneously exceed the power supply voltages 4 |
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Mô tả tương tự - ADC12441883 |
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