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ADS8326IBDGKR Datasheet(PDF) 5 Page - Texas Instruments |
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ADS8326IBDGKR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 39 page ADS8326 www.ti.com.................................................................................................................................................. SBAS343C – MAY 2007 – REVISED SEPTEMBER 2009 ELECTRICAL CHARACTERISTICS: VDD = +2.7V At –40°C to +85°C, VREF = +2.5V, –IN = GND, fSAMPLE = 200kHz, and fDCLOCK = 24 × fSAMPLE, unless otherwise noted. ADS8326I ADS8326IB PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT ANALOG INPUT Full-scale range FSR +IN – (–IN) 0 VREF 0 VREF V Operating common-mode signal –0.3 0.5 –0.3 0.5 V –IN = GND, off 5 5 G Ω Input resistance RON –IN = GND, on 100 150 100 150 Ω Input capacitance –IN = GND, during sampling 48 48 pF Input leakage current –IN = GND ±50 ±50 nA Differential input capacitance +IN to –IN, during sampling 20 20 pF FS sinewave, SINAD = Full-power bandwidth FSBW 60 60 kHz –60dB DC ACCURACY Resolution 16 16 Bits No missing codes NMC 16 16 Bits Integral linearity error INL –3 ±2 +3 –2.5 ±1 +2.5 LSB Differential linearity error DNL –1 ±0.5 +2 –1 ±0.4 +1 LSB Offset error VOS –1.5 ±0.75 +1.5 –1 ±0.5 +1 mV Offset error drift TCVOS ±0.2 ±0.2 ppm/°C Gain error GERR ±33 ±16 LSB Gain error drift TCGERR ±0.3 ±0.3 ppm/°C Noise 30 30 μVRMS Power-supply rejection 2.7V ≤ VDD ≤ 3.6V 0.5 0.5 LSB SAMPLING DYNAMICS Conversion time tCONV 24kHz ≤ fDCLOCK ≤ 4.8MHz 3.333 666.7 3.333 666.7 μs (16 DCLOCKs) Acquisition time tAQ fDCLOCK = 4.8MHz 0.9375 0.9375 μs (4.5 DCLOCKs) Throughput rate 200 200 kSPS (22 DCLOCKs) Clock frequency fDCLOCK 0.024 4.8 0.024 4.8 MHz AC ACCURACY 2.5VPP sinewave at 2kHz –88 –88.5 dB Total harmonic distortion THD 2.5VPP sinewave at 10kHz –75 –75.5 dB 2.5VPP sinewave at 2kHz 91 91.5 dB Spurious-free dynamic SFDR range 2.5VPP sinewave at 10kHz 77.5 78 dB 2.5VPP sinewave at 2kHz 86.5 87 dB Signal-to-noise ratio SNR 2.5VPP sinewave at 10kHz 86 86.5 dB 2.5VPP sinewave at 2kHz 85 85.5 dB Signal-to-noise + distortion SINAD 2.5VPP sinewave at 10kHz 74.5 75 dB 2.5VPP sinewave at 2kHz 13.86 13.94 Bits Effective number of bits ENOB 2.5VPP sinewave at 10kHz 12.12 12.20 Bits VOLTAGE REFERENCE INPUT Reference voltage 0.1 VDD 0.1 VDD V CS = GND, fSAMPLE = 0Hz 5 5 G Ω Reference input resistance CS = VDD 5 5 G Ω Reference input capacitance 24 24 pF fS = 200kHz 70 90 70 90 μA fS = 100kHz 25 33 25 33 μA Reference input current fS = 10kHz 5 7 5 7 μA CS = VDD 0.1 0.1 μA Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): ADS8326 |
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