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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ADS8317 데이터시트(PDF) 5 Page - Texas Instruments |
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ADS8317 데이터시트(HTML) 5 Page - Texas Instruments |
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5 / 36 page  ADS8317 www.ti.com .................................................................................................................................................... SBAS356D – JUNE 2007 – REVISED OCTOBER 2009 ELECTRICAL CHARACTERISTICS: VDD = +2.7V At –40°C to +85°C, VREF = +1.25V, –IN = 1.25V, fSAMPLE = 200kHz, and fCLK = 24 × fSAMPLE, unless otherwise noted. ADS8317I ADS8317IB PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT ANALOG INPUT Full-scale range FSR +IN – (–IN) –VREF VREF –VREF VREF V Absolute input range +IN –0.1 VDD + 0.1 –0.1 VDD + 0.1 V Hold 5 5 G Ω Input resistance RON Sampling 100 150 100 150 Ω Input capacitance During sampling 24 24 pF Input leakage current ±50 ±50 nA Differential input capacitance +IN to –IN, during sampling 20 20 pF Full-power bandwidth FSBW fS sinewave, SINAD = 60dB 1000 1000 kHz DC ACCURACY Resolution 16 16 Bits No missing codes NMC 16 16 16 16 Bits Integral linearity error INL –3 ±2 +3 –2 ±1.5 +2 LSB Differential linearity error DNL –1 +1.5,–1 +2.5 –1 ±1 +2 LSB Offset error VOS –2 ±1 +2 –1 ±0.5 +1 mV Offset error drift TCVOS ±0.4 ±0.4 μV/°C Positive –32 ±16 +32 –32 ±16 +32 LSB Gain error GERR Negative –32 ±16 +32 –32 ±16 +32 LSB Gain error drift TCGERR ±0.15 ±0.15 ppm/°C Bipolar zero error –2 ±0.8 +2 –1 ±0.4 +1 mV Bipolar zero error drift ±0.2 ±0.2 μV/°C Noise 50 50 μVRMS Power-supply rejection PSRR 2.7V ≤ VDD ≤ 3.6V 1 1 LSB SAMPLING DYNAMICS Conversion time (16 DCLOCKs) tCONV 24kHz ≤ fCLK ≤ 4.8MHz 3.333 666.7 3.333 666.7 μs Acquisition time (4.5 DCLOCKs) tAQ fCLK = 4.8MHz 0.9375 0.9375 μs Throughput rate (22 DCLOCKs) 200 200 kSPS Clock frequency 0.024 4.8 0.024 4.8 MHz AC ACCURACY 2.5VPP sinewave at 2kHz –104 –107 dB Total harmonic distortion THD 2.5VPP sinewave at 10kHz –101 –106 dB 2.5VPP sinewave at 2kHz 106 108 dB Spurious-free dynamic range SFDR 2.5VPP sinewave at 10kHz 104 107 dB 2.5VPP sinewave at 2kHz 84.8 85 dB Signal-to-noise ratio SNR 2.5VPP sinewave at 10kHz 84.8 85 dB 2.5VPP sinewave at 2kHz 84.7 84.9 dB Signal-to-noise + distortion SINAD 2.5VPP sinewave at 10kHz 84.7 84.8 dB 2.5VPP sinewave at 2kHz 13.77 13.8 Bits Effective number of bits ENOB 2.5VPP sinewave at 10kHz 13.77 13.79 Bits VOLTAGE REFERENCE INPUT Reference voltage 1 VDD/2 1 VDD/2 V CS = GND, fSAMPLE = 0Hz 5 5 k Ω Reference input resistance CS = VDD 5 5 G Ω Reference input capacitance 20 20 pF fS = 200kHz 9 14 9 14 μA fS = 100kHz 3 5 3 5 μA Reference input current fS = 10kHz 0.5 1 0.5 1 μA CS = VDD 0.1 0.1 μA Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): ADS8317 |
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