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ADC08031CIN Arkusz danych(PDF) 4 Page - National Semiconductor (TI) |
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ADC08031CIN Arkusz danych(HTML) 4 Page - National Semiconductor (TI) |
4 / 24 page Electrical Characteristics (Continued) The following specifications apply for V CC = VREF = +5 VDC, and fCLK = 1 MHz unless otherwise specified. Boldface limits apply for T A = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C. Symbol Parameter Conditions ADC08031, ADC08034 and ADC08038 Units (Limits) Typical (Note 8) Limits (Note 9) DIGITAL AND DC CHARACTERISTICS V OUT(0) Logical “0” Output Voltage V CC = 4.75V 0.4 V (max) I OUT = 1.6 mA I OUT TRI-STATE® Output Current V OUT = 0V −3.0 µA (max) V OUT = 5V 3.0 µA (max) I SOURCE Output Source Current V OUT = 0V −6.5 mA (min) I SINK Output Sink Current V OUT = VCC 8.0 mA (min) I CC Supply Current ADC08031, ADC08034, and ADC08038 CS = HIGH 3.0 mA (max) REFERENCE CHARACTERISTICS V REFOUT Nominal Reference Output V REFOUT Option Available Only on 2.6 V ADC08034 and ADC08038 Electrical Characteristics The following specifications apply for V CC = VREF = +5 VDC, and tr = tf = 20 ns unless otherwise specified. Boldface limits apply for T A = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C. Symbol Parameter Conditions Typical Limits Units (Note 8) (Note 9) (Limits) f CLK Clock Frequency 10 kHz (min) 1 MHz (max) Clock Duty Cycle 40 % (min) (Note 13) 60 % (max) T C Conversion Time (Not Including f CLK = 1 MHz 8 1/f CLK (max) MUX Addressing Time) 8 µs (max) t CA Acquisition Time 1 ⁄2 1/f CLK(max) t SELECT CLK High while CS is High 50 ns t SET-UP CS Falling Edge or Data Input 25 ns (min) Valid to CLK Rising Edge t HOLD Data Input Valid after CLK 20 ns (min) Rising Edge t pd1,tpd0 CLK Falling Edge to Output C L = 100 pF: Data Valid (Note 14) Data MSB First 250 ns (max) Data LSB First 200 ns (max) t 1H,t0H TRI-STATE Delay from Rising Edge C L = 10 pF, RL = 10 kΩ 50 ns of CS to Data Output and SARS Hi-Z (see TRI-STATE Test Circuits) C L = 100 pF, RL = 2kΩ 180 ns (max) C IN Capacitance of Logic Inputs 5 pF C OUT Capacitance of Logic Outputs 5 pF Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Note 2: Operating Ratings indicate conditions for which the device is functional. These ratings do not guarantee specific performance limits. For guaranteed speci- fications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance character- istics may degrade when the device is not operated under the listed test conditions. Note 3: All voltages are measured with respect to AGND = DGND = 0VDC, unless otherwise specified. www.national.com 4 |
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