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ADC12132CIMSAX Fiches technique(PDF) 7 Page - National Semiconductor (TI) |
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ADC12132CIMSAX Fiches technique(HTML) 7 Page - National Semiconductor (TI) |
7 / 42 page DC and Logic Electrical Characteristics The following specifications apply for (V + =V A+=VD+ = +5V, VREF+ = +4.096V, and fully-differential input with fixed 2.048V common-mode voltage) or (V + =V A+=VD+ = +3.3V, VREF+ = +2.5V and fully-differential input with fixed 1.250V common- mode voltage), V REF− = 0V, 12-bit + sign conversion mode, source impedance for analog inputs, VREF− and VREF+ ≤ 25Ω,f CK =f SK = 5 MHz, and 10 (tCK) acquisition time unless otherwise specified. Boldface limits apply for TA =TJ =TMIN to TMAX; all other limits T A =TJ = 25˚C. (Notes 7, 8, 9) Symbol Parameter Conditions Typical (Note 10) V + =V A+= V D+ = 3.3V Limits (Note 11) V + =V A+= V D+=5V Limits (Note 11) Units (Limits) CCLK, CS, CONV, DI, PD AND SCLK INPUT CHARACTERISTICS V IN(1) Logical “1” Input Voltage V A+=VD+=V + +10% 2.0 2.0 V (min) V IN(0) Logical “0” Input Voltage V A+=VD+=V + −10% 0.8 0.8 V (max) I IN(1) Logical “1” Input Current V IN =V + 0.005 1.0 1.0 µA (max) I IN(0) Logical ′“0” Input Current V IN = 0V −0.005 −1.0 −1.0 µA (min) DO, EOC AND DOR DIGITAL OUTPUT CHARACTERISTICS V OUT(1) Logical “1” Output Voltage V A+=VD+=V + − 10%, I OUT = −360 µA 2.4 2.4 V (min) V A+=VD+=V + − 10%, I OUT = −10 µA 2.9 4.25 V (min) V OUT(0) Logical “0” Output Voltage V A+=VD+=V + − 10% I OUT = 1.6 mA 0.4 0.4 V (max) I OUT TRI-STATE Output Current V OUT =0V V OUT =V + −0.1 −0.1 −3.0 3.0 −3.0 3.0 µA (max) µA (max) +I SC Output Short Circuit Source Current V OUT = 0V −14 mA −I SC Output Short Circuit Sink Current V OUT =VD+16 mA POWER SUPPLY CHARACTERISTICS I D+ Digital Supply Current Awake (Active) 1.5 2.5 mA (max) CS = HIGH, Powered Down, CCLK on 600 µA CS = HIGH, Powered Down, CCLK off 20 µA I A+ Positive Analog Supply Current Awake (Active) 3.0 4.0 mA (max) CS = HIGH, Powered Down, CCLK on 10 µA CS = HIGH, Powered Down, CCLK off 0.1 µA I REF Reference Input Current CS = HIGH, Powered Down, CCLK on 70 µA CS = HIGH, Powered Down, CCLK off 0.1 µA www.national.com 7 |
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