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ADS8331IBPWR Datasheet(PDF) 6 Page - Texas Instruments |
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ADS8331IBPWR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 57 page ADS8331, ADS8332 SBAS363D – DECEMBER 2009 – REVISED OCTOBER 2015 www.ti.com 7.5 Electrical Characteristics: VA = 2.7 V At TA = –40°C to 85°C, VA = 2.7 V, VBD = 1.65 V to 2.7 V, VREF = 2.5 V, and fSAMPLE = 500 kSPS, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Full-scale input voltage (1) INX – COM, ADCIN – COM 0 VREF V INX, ADCIN AGND – 0.2 VA + 0.2 V Absolute input voltage COM AGND – 0.2 AGND + 0.2 V Input capacitance ADCIN 40 45 pF Input leakage current Unselected ADC input ±1 nA SYSTEM PERFORMANCE Resolution 16 Bits No missing codes 16 Bits ADS8331I, ADS8332I –3 ±2 3 INL Integral linearity LSB(2) ADS8331IB, ADS8332IB –2 ±1.2 2 ADS8331I, ADS8332I –1 ±0.6 2 DNL Differential linearity LSB(2) ADS8331IB, ADS8332IB –1 ±0.6 1.5 EO Offset error(3) –0.5 ±0.15 0.5 mV Offset error drift ±1 PPM/°C Offset error matching –0.2 0.2 mV EG Gain error –0.25 –0.06 0.25 %FSR Gain error drift ±0.4 PPM/°C Gain error matching –0.003 0.003 %FSR Transition noise 28 μV RMS PSRR Power-supply rejection ratio 74 dB SAMPLING DYNAMICS tCONV Conversion time 18 CCLK tSAMPLE1 Manual-Trigger mode 3 CCLK Acquisition time tSAMPLE2 Auto-Trigger mode 3 CCLK Throughput rate 500 kSPS DYNAMIC CHARACTERISTICS VIN = 2.5VPP at 1 kHz –101 dB THD Total harmonic distortion (4) VIN = 2.5VPP at 10 kHz –95 dB ADS8331I, ADS8332I 88 VIN = 2.5VPP at 1 kHz dB ADS8331IB, ADS8332IB 89 SNR Signal-to-noise ratio ADS8331I, ADS8332I 86.5 VIN = 2.5VPP at 10 kHz dB ADS8331IB, ADS8332IB 87.5 ADS8331I, ADS8332I 87.5 VIN = 2.5VPP at 1 kHz dB ADS8331IB, ADS8332IB 88.5 SINAD Signal-to-noise + distortion ADS8331I, ADS8332I 86 VIN = 2.5VPP at 10 kHz dB ADS8331IB, ADS8332IB 87 VIN = 2.5VPP at 1 kHz 103 dB SFDR Spurious-free dynamic range VIN = 2.5VPP at 10 kHz 98 dB VIN = 2.5VPP at 1 kHz 125 dB Crosstalk VIN = 2.5VPP at 100 kHz 108 dB INX – COM with MUXOUT tied to ADCIN 17 MHz –3-dB small-signal bandwidth ADCIN – COM 30 MHz CLOCK Internal conversion clock 10.5 11 12.2 MHz frequency (1) Ideal input span; does not include gain or offset error. (2) LSB means least significant bit. (3) Measured relative to an ideal full-scale input (INX – COM) of 2.5 V when VA = 2.7 V. (4) Calculated on the first nine harmonics of the input frequency. 6 Submit Documentation Feedback Copyright © 2009–2015, Texas Instruments Incorporated Product Folder Links: ADS8331 ADS8332 |
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