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ADC12041CIMSA Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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ADC12041CIMSA Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 28 page Power Supply Characteristics (Continued) The following specifications apply to the ADC12041 for V A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-bit + sign conver- sion mode, f CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF−1Ω, fully differential input with fixed 2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T A =TJ =TMIN to T MAX; all other limits TA =TJ = 25˚C Symbol Parameter Conditions Typical Limits Unit (Note 10) (Note 11) (Limit) I A+VA+ Analog Supply Current Start Command (Performing a conversion) with SYNC configured as an input and driven with a 214 kHz signal. Bus width set to 13. f CLK = 12.0 MHz, Reset Mode 2.3 mA f CLK = 12.0 MHz, Conversion 2.3 4.0 mA (max) I ST Standby Supply Current Standby Mode (I D++IA+) f CLK = Stopped 5 15 µA (max) f CLK = 12.0 MHz 100 120 µA (max) Analog Input Characteristics The following specifications apply to the ADC12041 for V A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-Bit + sign conver- sion mode, f CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF+ ≤ 1Ω, fully differential input with fixed 2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T A =TJ =TMIN to T MAX; all other limits TA =TJ = 25˚C Symbol Parameter Conditions Typical Limits Unit (Note 10) (Note 11) (Limit) I IN V IN+ and VIN− Input Leakage Current V IN+=5V ±0.05 2.0 µA (max) V IN−=0V R ON ADC Input On Resistance V IN = 2.5V 1000 Ω Refer to section titled INPUT CURRENT. CV IN ADC Input Capacitance 10 pF Reference Inputs The following specifications apply to the ADC12041 for V A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-bit + sign con- version mode, f CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF− ≤ 1Ω, fully differential input with fixed 2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T A =TJ =T MIN to TMAX; all other limits TA =TJ = 25˚C Symbol Parameter Conditions Typical Limits Unit (Note 10) (Note 11) (Limit) I REF Reference Input Current V REF+ 4.096V, VREF−=0V Analog Input Signal: 1 kHz 145 µA (Note 20) 80 kHz 136 µA C REF Reference Input Capacitance 85 pF Digital Logic Input/Output Characteristics The following specifications apply to the ADC12041 for V A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-bit + sign con- version mode, f CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF− ≤ 1Ω, fully differential input with fixed 2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T A =TJ =T MIN to TMAX; all other limits TA =TJ = 25˚C Symbol Parameter Conditions Typical Limits Unit (Note 10) (Note 11) (Limit) V IH Logic High Input Voltage V A+=VD+ = 5.5V 2.2 V (min) V IL Logic Low Input Voltage V A+=VD+ = 4.5V 0.8 V (max) I IH Logic High Input Current V IN = 5V 0.035 2.0 µA (max) I IL Logic Low Input Current V IN = 0V −0.035 −2.0 µA (max) V OH Logic High Output Voltage V A+=VD+ = 4.5V 2.4 2.4 V (min) I OUT = −1.6 mA www.national.com 5 |
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