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ADC0838B Scheda tecnica(PDF) 7 Page - Texas Instruments |
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ADC0838B Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 13 page IOZ ADC0834A, ADC0838A, ADC0834B, ADC0838B A/D PERIPHERALS WITH SERIAL CONTROL SLAS007 – AUGUST 1985 – REVISED OCTOBER 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 recommended operating conditions MIN NOM MAX UNIT VCC Supply voltage 4.5 5 6.3 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V fclock Clock frequency 10 400 kHz Clock duty cycle (see Note 3) 40 60 % twH(CS) Pulse duration, CS high 220 ns tsu Setup time, CS low, SE low, or data valid before clock ↑ 350 ns th Hold time, data valid after clock ↑ 90 ns TA Operating free-air temperature AC and BC suffixes 0 70 °C TA O erating free-air tem erature AI and BI suffixes –40 85 °C NOTE 3: The clock duty cycle range ensures proper operation at all clock frequencies. If a clock frequency is used outside the recommended duty cycle range, the minimum pulse duration (high or low) is 1 µs. electrical characteristics over recommended range of operating free-air temperature, VCC = V+ = 5 V, fclock = 250 kHz (unless otherwise noted) digital section PARAMETER TEST CONDITIONS† AC, BC SUFFIX AI, BI SUFFIX UNIT PARAMETER TEST CONDITIONS† MIN TYP‡ MAX MIN TYP‡ MAX UNIT VOH High levl output voltage VCC = 4.75 V, IOH = – 360 µA 2.8 2.4 V VOH High-levl output voltage VCC = 4.75 V, IOH = – 10 µA 4.6 4.5 V VOL Low-levl output voltage VCC = 5.25 V, IOH = 1.6 mA 0.34 0.4 V IIH High-level input current VIH = 5 V 0.005 1 0.005 1 µA IIL Low-level input current VIL = 0 – 0.005 –1 – 0.005 –1 µA IOH High-level output (source) current VOH = 0, TA = 25°C – 6.5 –14 – 6.5 –14 mA IOL Low-level output (sink) current VOL = VCC,TA = 25°C 8 16 8 16 mA High-impedance-state output VO = 5 V, TA = 25°C 0.01 3 0.01 3 µA g current (DO or SARS) VO = 0, TA = 25°C – 0.01 –3 – 0.01 –3 µA Ci Input capacitance 5 pF Co Output capacitance 5 pF † All parameters are measured under open-loop conditions with zero common-mode input voltage (unless otherwise specified). ‡ All typical values are at VCC = V+ = 5 V, TA = 25°C. |
Codice articolo simile - ADC0838B |
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