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ADC121S625CIMMX Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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ADC121S625CIMMX Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 20 page ADC121S625 Converter Electrical Characteristics (Note 8) (Continued) The following specifications apply for V A = +4.5V to 5.5V, VREF = 2.5V, fSCLK = 0.8 to 3.2 MHz, fIN = 20 kHz, CL = 100 pF, un- less otherwise noted. Boldface limits apply for T A =TMIN to TMAX: all other limits TA = 25˚C. Symbol Parameter Conditions Typical Limits Units (Note 7) ANALOG INPUT CHARACTERISTICS I REF Reference Current CS low, f SCLK = 3.2 MHz, f S = 200 ksps, output = FF8h 12 µA CS low, f SCLK = 3.2 MHz, f S = 50 ksps, output = FF8h 3µA CS low, f SCLK = 3.2 MHz, 12.5 ksps, output = FF8h 0.7 µA CS high, f SCLK =0 0.3 µA DIGITAL INPUT CHARACTERISTICS V IH Input High Voltage V A = 4.5V to 5.5V 2.4 V (min) V IL Input Low Voltage V A = 4.5V to 5.5V 0.8 V (max) I IN Input Current V IN =0VorVA ±0.03 1 µA (max) C IND Input Capacitance 2 4 pF (max) DIGITAL OUTPUT CHARACTERISTICS V OH Output High Voltage V A = 4.5V to 5.5V, ISOURCE = 250 µA V A − 0.05 V A − 0.2 V (min) V A = 4.5V to 5.5V, ISOURCE =2mA V A − 0.1 V V OL Output Low Voltage V A = 4.5V to 5.5V, ISINK = 250 µA 0.02 0.4 V (max) V A = 4.5V to 5.5V, ISOURCE = 2 mA 0.1 V I OZH, I OZL TRI-STATE Leakage Current ±0.03 ±1 µA (max) C OUT TRI-STATE Output Capacitance 2 4 pF (max) Output Coding Binary 2’S Complement POWER SUPPLY CHARACTERISTICS V A Analog Supply Voltage 4.5 V (min) 5.5 V (max) I A Active Supply Current, Normal Mode (Operational) f SCLK = 3.2 MHz, fSMPL = 200 ksps, f IN = 20 kHz, CL = 15pF 410 510 µA (max) f SCLK = 3.2 MHz, fSMPL = 12.5 ksps, C L = 15pF, Power Down between conversions 31 µA f SCLK = 0.8 MHz, fSMPL = 50 ksps, C L = 15pF 242 µA f SCLK = 0.2 MHz, fSMPL = 12.5 ksps, C L = 15pF (Note 10) 200 µA I A Shutdown Supply Current, Shutdown (CS high) f SCLK = 0 0.01 2 µA (max) f SCLK = 3.2 MHz 6 µA PWR Active Power Consumption, Normal Mode (Operational) f SCLK = 3.2 MHz, fSMPL = 200 ksps, f IN = 20 kHz, CL = 15pF 2.25 2.8 mW (max) f SCLK = 3.2 MHz, fSMPL = 12.5 ksps, C L = 15pF, Power Down between conversions 0.18 mW f SCLK = 0.8 MHz, fSMPL = 50 ksps, C L = 15pF 1.33 mW f SCLK = 0.2 MHz, fSMPL = 12.5 ksps, C L = 15pF (Note 10) 1.1 mW PWR Shutdown Power Consumption, Shutdown (CS high) f SCLK = 0 0.06 11 µW (max) f SCLK = 3.2 MHz 33 µW www.national.com 4 |
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