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ADC12662 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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ADC12662 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 23 page Dynamic Characteristics (Note 10) (Continued) The following specifications apply for DV CC =AVCC = +5V, VREF+(SENSE) = +4.096V, VREF−(SENSE) = AGND, RS =25Ω,fIN = 100 kHz, 0 dB from fullscale, and f s = 1.5 MHz, unless otherwise specified. Boldface limits apply for TA =TJ from TMIN to T MAX; all other limits TA =TJ = +25˚C. Symbol Parameter Conditions Typ Limit Units (Note 7) (Note 8) (Limit) SNR Signal-to-Noise Ratio T MIN to TMAX 70 67.5 dB (min) (Note 11) THD Total Harmonic Distortion T MIN to TMAX −80 −70 dBc (max) (Note 12) ENOB Effective Number of Bits T MIN to tMAX 11.3 10.8 Bits (min) (Note 13) IMD Intermodulation Distortion f IN = 88.7 kHz, 89.5 kHz −80 dBc DC Electrical Characteristics The following specifications apply for DV CC =AVCC = +5V, VREF+(SENSE) = +4.096V, VREF−(SENSE) = AGND, and fs = 1.5 MHz, unless otherwise specified. Boldface limits apply for T A =TJ from TMIN to TMAX; all other limits TA =TJ = +25˚C. Symbol Parameter Conditions Typ Limit Units (Note 7) (Note 8) (Limit) V IN(1) Logical “1” Input Voltage DV CC =AVCC = +5.5V 2.0 V (min) V IN(0) Logical “0” Input Voltage DV CC =AVCC = +4.5V 0.8 V (max) I IN(1) Logical “1” Input Current 0.1 1.0 µA (max) I IN(0) Logical “0” Input Current 0.1 1.0 µA (max) V OUT(1) Logical “1” Output Voltage DV CC =AVCC = +4.5V, I OUT = −360 µA 2.4 V (min) I OUT = −100 µA 4.25 V (min) V OUT(0) Logical “0” Output Voltage DV CC =AVCC = +4.5V, 0.4 V (max) I OUT = 1.6 mA I OUT TRI-STATE® Output Leakage Current Pins DB0–DB11 0.1 3 µA (max) C OUT TRI-STATE Output Capacitance Pins DB0–DB11 5 pF C IN Digital Input Capacitance 4 pF DI CC DV CC Supply Current 2 3 mA (max) AI CC AV CC Supply Current 32 37 mA (max) I STANDBY Standby Current (DI CC +AICC) PD=0V 50 µA AC Electrical Characteristics The following specifications apply for DV CC =AVCC = +5V, VREF+(SENSE) = +4.096V, VREF−(SENSE) = AGND, and fs = 1.5 MHz, unless otherwise specified. Boldface limits apply for T A =TJ from TMIN to TMAX; all other limits TA =TJ = +25˚C. Symbol Parameter Conditions Typ Limit Units (Note 7) (Note 8) (Limits) f s Maximum Sampling Rate 1.5 MHz (min) (1/t THROUGHPUT) t CONV Conversion Time 580 510 ns (min) (S/H Low to EOC High) 660 ns (max) t AD Aperture Delay 20 ns (S/H Low to Input Voltage Held) t S/H S/H Pulse Width 10 5 ns (min) 400 ns (max) t EOC S/H Low to EOC Low 90 60 ns (min) 126 ns (max) www.national.com 5 |
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