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ADCS7476AIMFX Datasheet(PDF) 7 Page - National Semiconductor (TI) |
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ADCS7476AIMFX Datasheet(HTML) 7 Page - National Semiconductor (TI) |
7 / 22 page ADCS7476/ADCS7477/ADCS7478 Specifications(Note 2) (Continued) ADCS7478 Converter Electrical Characteristics The following specifications apply for V DD = +2.7V to 5.25V, fSCLK = 20 MHz, fSAMPLE = 1 MSPS unless otherwise noted. Bold- face limits apply for T A = −40˚C to +85˚C: all other limits TA = 25˚C, unless otherwise noted. Symbol Parameter Conditions Typical Limits Units STATIC CONVERTER CHARACTERISTICS Resolution with No Missing Codes 8 Bits INL Integral Non-Linearity ±0.05 ±0.3 LSB (max) DNL Differential Non-Linearity ±0.07 ±0.3 LSB (max) V OFF Offset Error ±0.03 ±0.3 LSB (max) GE Gain Error ±0.08 ±0.4 LSB (max) Total Unadjusted Error ±0.07 ±0.3 LSB (max) DYNAMIC CONVERTER CHARACTERISTICS SINAD Signal-to-Noise Plus Distortion Ratio f IN = 100 kHz 49.7 49 dB (min) SNR Signal-to-Noise Ratio f IN = 100 kHz 49.7 dB THD Total Harmonic Distortion f IN = 100 kHz -77 -65 dB (max) SFDR Spurious-Free Dynamic Range f IN = 100 kHz 69 65 dB (min) IMD Intermodulation Distortion, Second Order Terms f a = 103.5 kHz, fb = 113.5 kHz -68 dB Intermodulation Distortion, Third Order Terms f a = 103.5 kHz, fb = 113.5 kHz -68 dB FPBW -3 dB Full Power Bandwidth +5V Supply 11 MHz +3V Supply 8 MHz POWER SUPPLY CHARACTERISTICS V DD Supply Voltage 2.7 5.25 V (min) V (max) I DD Normal Mode (Static) V DD = +4.75V to +5.25V, SCLK On or Off 2mA V DD = +2.7V to +3.6V, SCLK On or Off 1mA Normal Mode (Operational) V DD = +4.75V to +5.25V, f SAMPLE = 1 MSPS 2.0 3.5 mA (max) V DD = +2.7V to +3.6V, f SAMPLE = 1 MSPS 0.6 1.6 mA (max) Shutdown Mode V DD = +5V, SCLK Off 0.5 µA (max) V DD = +5V, SCLK On 60 µA (max) P D Power Consumption, Normal Mode (Operational) V DD = +5V, fSAMPLE = 1 MSPS 10 17.5 mW (max) V DD = +3V, fSAMPLE = 1 MSPS 2 4.8 mW (max) Power Consumption= Shutdown Mode V DD = +5V, SCLK Off 2.5 µW (max) V DD = +3V, SCLK Off 1.5 µW (max) ANALOG INPUT CHARACTERISTICS V IN Input Range 0 to V DD V I DCL DC Leakage Current ±1 µA (max) C INA Analog Input Capacitance 30 pF DIGITAL INPUT CHARACTERISTICS V IH Input High Voltage 2.4 V (min) V IL Input Low Voltage V DD = +5V 0.8 V (max) V DD = +3V 0.4 V (max) I IN Digital Input Current V IN =0VorVDD ±10 nA ±1 µA (max) C IND Input Capacitance 2 4 pF(max) www.national.com 7 |
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