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ADS1204IRHBT bảng dữ liệu(PDF) 3 Page - Texas Instruments |
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ADS1204IRHBT bảng dữ liệu(HTML) 3 Page - Texas Instruments |
3 / 29 page DISSIPATION RATINGS ELECTRICAL CHARACTERISTICS ADS1204 www.ti.com........................................................................................................................................... SBAS301C – OCTOBER 2003 – REVISED FEBRUARY 2009 DERATING FACTOR TA ≤ +25°C ABOVE TA = TA = +70°C TA = +85°C TA = +105°C PACKAGE POWER RATING +25°C(1) POWER RATING POWER RATING POWER RATING QFN-32 (5×5) 3406mW 27.25mW/°C 2180mW 1771mW 1226mW (1) This is the inverse of the traditional junction-to-ambient thermal resistance (RθJA). Thermal resistances are not production tested and are for informational purposes only. Over recommended operating free-air temperature range at –40°C to +105°C, AVDD = 5V, BVDD = 3V, CH x+ = 0.5V to 4.5V, CH x– = 2.5V, REFIN = REFOUT = internal +2.5V, CLKIN = 20MHz, and 16-bit Sinc 3 filter with decimation by 256, unless otherwise noted. ADS1204 PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT RESOLUTION 16 Bits DC ACCURACY ±1 ±3 LSB INL Integral linearity error(2) ±0.001 ±0.005 % FSR ±6 LSB Integral linearity match ±0.009 % FSR DNL Differential nonlinearity(3) ±1 LSB VOS Input offset error –1.4 ±3 mV Input offset error match ±2 mV TCVOS Input offset error drift ±2 ±8 µV/°C GERR Gain error(4) Referenced to VREF ±0.08 ±0.5 % FSR Gain error match ±0.185 ±0.5 % FSR TCGERR Gain error drift ±2 ppm/°C PSRR Power-supply rejection ratio 4.75V < AVDD < 5.25V 78 dB ANALOG INPUT FSR Full-scale differential range (CH x+) – (CH x–); CH x– = 2.5V ±2.5 V Specified differential range (CH x+) – (CH x–); CH x– = 2.5V ±2 V Maximum operating input range(3) 0 AVDD V Input capacitance Common-mode 1.5 pF Input leakage current CLK turned off ±1 nA Differential input resistance 100 k Ω Differential input capacitance 2.5 pF At DC 100 dB CMRR Common-mode rejection ratio VIN = ±1.25VPP at 40kHz 110 dB BW Bandwidth FS sine wave, –3dB 50 MHz SAMPLING DYNAMICS Internal clock frequency CLKSEL = 1 8 10 12 MHz CLKIN External clock frequency CLKSEL = 0 1 20 24 MHz (1) All typical values are at TA = +25°C. (2) Integral nonlinearity is defined as the maximum deviation of the line through the end points of the specified input range of the transfer curve for CH x+ = –2V to +2V at 2.5V, expressed either as the number of LSBs or as a percent of measured input range (4V). (3) Specified by design. (4) Maximum values, including temperature drift, are specified over the full specified temperature range. Copyright © 2003–2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS1204 |
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