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ADC12020 Fiches technique(PDF) 6 Page - National Semiconductor (TI) |
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ADC12020 Fiches technique(HTML) 6 Page - National Semiconductor (TI) |
6 / 23 page Converter Electrical Characteristics (Continued) Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V A =VD = +5V, VDR = +3.0V, PD = 0V, V REF = +2.0V, fCLK = 20 MHz, tr =tf = 3 ns, CL = 25 pF/pin. Boldface limits apply for TA =TJ =TMIN to T MAX: all other limits TA =TJ = 25˚C (Notes 7, 8, 9) Symbol Parameter Conditions Typical (Note 10) Limits (Note 10) Units (Limits) SFDR Spurious Free Dynamic Range f IN = 1 MHz, VIN = −0.5 dBFS 86 dB f IN = 4.4 MHz, VIN = −0.5 dBFS 86 dB f IN = 10.1 MHz, V IN = −0.5 dBFS +25˚C 86 71 dB(min) +85˚C 68 dB(min) IMD Intermodulation Distortion f IN = 4.7 MHz and 5.3 MHz, each = −7 dBFS −73 dBFS REFERENCE AND ANALOG INPUT CHARACTERISTICS V CM Common Mode Input Voltage V A/2 V C IN V IN Input Capacitance (each pin to GND) V IN = 2.5 Vdc + 0.7 V rms (CLK LOW) 8 pF (CLK HIGH) 7 pF V REF Reference Voltage (Note 13) 2.00 1.0 V (min) 2.4 V (max) Reference Input Resistance 100 M Ω(min) DC and Logic Electrical Characteristics Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V A =VD = +5V, VDR = +3.0V, PD = 0V, V REF = +2.0V, fCLK = 20 MHz, tr =tf = 3 ns, CL = 25 pF/pin. Boldface limits apply for TA =TJ =TMIN to T MAX: all other limits TA =TJ = 25˚C (Notes 7, 8, 9) Symbol Parameter Conditions Typical (Note 10) Limits (Note 10) Units (Limits) CLK, PD, OE DIGITAL INPUT CHARACTERISTICS V IN(1) Logical “1” Input Voltage V D = 5.25V 2.0 V (min) V IN(0) Logical “0” Input Voltage V D = 4.75V 1.0 V (max) I IN(1) Logical “1” Input Current V IN = 5.0V 10 µA I IN(0) Logical “0” Input Current V IN = 0V −10 µA C IN Digital Input Capacitance 5 pF D0–D11 DIGITAL OUTPUT CHARACTERISTICS V OUT(1) Logical “1” Output Voltage I OUT = −0.5 mA V DR = 2.5V 2.3 V (min) V DR =3V 2.7 V (min) V OUT(0) Logical “0” Output Voltage I OUT = 1.6 mA, VDR =3V 0.4 V (max) I OZ TRI-STATE Output Current V OUT = 2.5V or 5V 100 nA V OUT = 0V −100 nA +I SC Output Short Circuit Source Current V OUT = 0V −20 mA (min) −I SC Output Short Circuit Sink Current V OUT =VDR 20 mA (min) POWER SUPPLY CHARACTERISTICS I A Analog Supply Current PD Pin = DGND, V REF = 2.0V PD Pin = V DR 32.3 8 41 mA(max) mA I D Digital Supply Current PD Pin = DGND PD Pin = V DR,fCLK =0 3.3 3.5 4.5 mA (max) mA I DR Digital Output Supply Current PD Pin = DGND, C L = 0 pF (Note 14) PD Pin = V DR,fCLK =0 3 0 mA (max) mA Total Power Consumption PD Pin = DGND, C L = 0 pF (Note 15) PD Pin = V DR,fCLK =0 178 40 227 mW mW PSRR1+ Power Supply Rejection Ratio Rejection of Positive Full-Scale Error with V A = 4.75V to 5.25V 69 dBFS www.national.com 6 |
Numéro de pièce similaire - ADC12020 |
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Description similaire - ADC12020 |
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