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ADCS7477AIMFX bảng dữ liệu(PDF) 8 Page - National Semiconductor (TI) |
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ADCS7477AIMFX bảng dữ liệu(HTML) 8 Page - National Semiconductor (TI) |
8 / 22 page ADCS7476/ADCS7477/ADCS7478 Specifications(Note 2) (Continued) ADCS7478 Converter Electrical Characteristics (Continued) 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 DIGITAL OUTPUT CHARACTERISTICS V OH Output High Voltage I SOURCE = 200 µA, V DD = +2.7V to +5.25V V DD −0.2 V (min) V OL Output Low Voltage I SINK = 200 µA 0.4 V (max) I OL TRI-STATE Leakage Current ±10 µA (max) C OUT TRI-STATE Output Capacitance 2 4 pF (max) Output Coding Straight (Natural) Binary AC ELECTRICAL CHARACTERISTICS f SCLK Clock Frequency 20 MHz (max) DC SCLK Duty Cycle 40 60 % (min) % (max) t TH Track/Hold Acquisition Time 400 ns (max) f RATE Throughput Rate See Applications Section 1 MSPS (min) t AD Aperture Delay 3 ns t AJ Aperture Jitter 30 ps Note 1: Absolute maximum ratings are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional operability under any of these conditions is not implied. Exposure to maximum ratings for extended periods may affect device reliability. Note 2: Data sheet min/max specification limits are guaranteed by design, test, or statistical analysis. Note 3: Except power supply pins. Note 4: Independent of supply voltage. www.national.com 8 |
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