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ADS1118QDGSRQ1 Arkusz danych(PDF) 5 Page - Texas Instruments |
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ADS1118QDGSRQ1 Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 41 page ADS1118-Q1 www.ti.com SBAS740A – OCTOBER 2015 – REVISED NOVEMBER 2015 7.5 Electrical Characteristics Maximum and minimum specifications apply from TA = –40°C to +125°C. Typical specifications are at TA = 25°C. All specifications are at VDD = 3.3 V, data rate = 8 SPS, and FSR = ±2.048 V (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUTS FSR = ±6.144 V(1) 8 FSR = ±4.096 V(1), FSR = ±2.048 V 6 Common-mode input impedance M Ω FSR = ±1.024 V 3 FSR = ±0.512 V, FSR = ±0.256 V 100 FSR = ±6.144 V(1) 22 FSR = ±4.096 V(1) 15 M Ω Differential input impedance FSR = ±2.048 V 4.9 FSR = ±1.024 V 2.4 FSR = ±0.512 V, FSR = ±0.256 V 710 k Ω SYSTEM PERFORMANCE Resolution (no missing codes) 16 Bits DR Data rate 8, 16, 32, 64, 128, 250, 475, 860 SPS Data rate variation All data rates –10% 10% Output noise See Noise Performance section INL Integral nonlinearity DR = 8 SPS, FSR = ±2.048 V(2) 1 LSB FSR = ±2.048 V, differential inputs ±0.1 ±2 Offset error LSB FSR = ±2.048 V, single-ended inputs ±0.25 Offset drift FSR = ±2.048 V 0.002 LSB/°C Offset power-supply rejection FSR = ±2.048 V, dc supply variation 0.2 LSB/V Offset channel match Match between any two inputs 0.6 LSB Gain error(3) FSR = ±2.048 V, TA = 25°C 0.01% 0.15% FSR = ±0.256 V 7 Gain drift(3)(4) FSR = ±2.048 V 5 40 ppm/°C FSR = ±6.144 V(1) 5 Gain power-supply rejection 10 ppm/V Gain match(3) Match between any two gains 0.01% 0.1% Gain channel match Match between any two inputs 0.01% 0.1% At DC, FSR = ±0.256 V 105 At DC, FSR = ±2.048 V 100 CMRR Common-mode rejection ratio At DC, FSR = ±6.144 V(1) 90 dB fCM = 50 Hz, DR = 860 SPS 105 fCM = 60 Hz, DR = 860 SPS 105 TEMPERATURE SENSOR Temperature range –40 125 °C Temperature resolution 0.03125 °C/LSB TA = 0°C to 70°C 0.2 ±1 °C Accuracy TA = –40°C to +125°C 0.4 ±2 vs supply 0.03125 ±0.25 °C/V (1) This parameter expresses the full-scale range of the ADC scaling. No more than VDD + 0.3 V or 5.5 V (whichever is smaller) must be applied to this device. (2) Best-fit INL; covers 99% of full-scale. (3) Includes all errors from onboard PGA and voltage reference. (4) Maximum value specified by characterization. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADS1118-Q1 |
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