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ADC674ASH bảng dữ liệu(PDF) 2 Page - Burr-Brown (TI) |
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ADC674ASH bảng dữ liệu(HTML) 2 Page - Burr-Brown (TI) |
2 / 6 page 2 ® ADC674A SPECIFICATIONS ELECTRICAL At TA = +25°C, VCC = ±12V or +15V, VEE = –12V or –15VDC, and VLOGIC = +5V, unless otherwise noted. ADC674AJP, JH, SH ADC674AKP, KH, TH PARAMETER MIN TYP MAX MIN TYP MAX UNITS RESOULUTION 12 * Bits ANALOG INPUTS Voltage Ranges: Unipolar 0 to +10, 0 to +20 * V Bipolar ±5, ±10 * V Impedance: 0 to +10V, ±5V 4.7 5 5.3 * * * k Ω ±10V, 0V to +20V 9.4 10 10.6 * * * k Ω DIGITAL INPUTS (CE, CS, R/C, AO, 12/8) Over Temperature Range Voltages: Logic 1 +2 ±5.5 * * V Logic 0 –0.5 ±0.8 * * V Current –5 0.2 ±5* * * µA Capacitiance 5 * pF TRANSFER CHARACTERISTICS ACCURACY At +25 °C ±1 ±1/2 LSB Linearity Error ±2 * LSB Unipolar Offset Error (adjustable to zero) ±10 ±4 LSB Bipolar Offset Error (adjustable to zero) Full-Scale Calibration Error(1) (adjustable to zero) ±0.25 * % of FS(2) No Missing Codes Resolution (differential linearity) 11 ±1/2 12 Bits Inherent Quantization Error * LSB TMIN to TMAX Linearity Error: J, K Grades ±1 ±1/2 LSB S, T Grades ±1 ±3/4 LSB Full-Scale Calibration Error Without Initial Adjustmen(1): J, K Grades ±0.47 ±0.37 % of FS S, T Grades ±0.75 ±0.5 % of FS Adjusted to zero at +25 °C: J, K Grades ±0.22 ±0.12 % of FS S, T Grades ±0.5 ±0.25 % of FS No Missing Codes Resolution (differential linearity) 11 12 Bits TEMPERATURE COEFFICIENTS (TMIN to TMAX)(3) Unipolar Offset: J, K Grades ±10 ±5 ppm/ °C S, T Grades ±5 ±2.5 ppm/ °C Max Change: All Grades ±2 ±1 LSB Bipolar Offset: All Grades ±10 ±5 ppm/ °C Max Change: J, K Grades ±2 ±1 LSB S, T Grades ±4 ±2 LSB Full-Scale Calibration: J, K Grades ±45 ±25 ppm/ °C S, T Grades ±50 ±25 ppm/ °C Max Change: J, K Grades ±9 ±5 LSB S, T Grades ±20 ±10 LSB POWER SENSITIVITY Change in Full-Scale Calibration +13.5V < VCC < +16.5V or +11.4V < VCC < +12.6V ±2 ±1 LSB +16.5V < VEE < +13.5V or –12.6V < VEE < –11.4V ±2 ±1 LSB +4.5V < VLOGIC < +5.5V ±1/2 * LSB CONVERSION TIME(4) 8-Bit Cycle 6 8 10 * * * µs 12-Bit Cycle 9 12 15 * * * µs DIGITAL OUTPUT (DB11—DB0, Status) (Over Temperature Range) Outputs Codes: Unipolar Bipolar * Logic Levels: Logic 0 (ISINK = 1.6mA) +0.4 * V Logic 1 (ISOURCE = 500µA) +2.4 * V Leakage, Data Bits Only , High-Z State –5 0.1 +5 * * * µA Capacitance 5 * pF INTERNAL REFERENCE VOLTAGE Voltage +9.9 ±10 ±10.1 * * * V Source Current Available for External Loads(5) 2* mA Unipolar Straight Binary (USB) Bipolar Offset Binary (BOB) |
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