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ADS8695IPW Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS8695IPW Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 73 page 6 ADS8691, ADS8695, ADS8699 SBAS777 – DECEMBER 2016 www.ti.com Product Folder Links: ADS8691 ADS8695 ADS8699 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Electrical Characteristics (continued) all minimum and maximum specifications are at TA = –40°C to +125°C; typical specifications are at TA = 25°C; AVDD = 5 V, DVDD = 3.3 V, VREF = 4.096 V (internal), and maximum throughput (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (2) This specification indicates the endpoint INL, not best-fit INL. (3) Unipolar ranges are 0 V–12.288 V, 0 V–10.24 V, 0 V–6.144 V, and 0 V–5.12 V. (4) Measured relative to actual measured reference. (5) Bipolar ranges are ±12.288 V, ±10.24 V, ±6.144 V, ±5.12 V, and ±2.56 V. (6) Excludes internal reference accuracy error. (7) Excludes internal reference temperature drift. (8) All specifications expressed in decibels (dB) refer to the full-scale input (FSR) and are tested with a 1-kHz input signal 0.25 dB below full-scale, unless otherwise specified. (9) Calculated on the first nine harmonics of the input frequency. SYSTEM PERFORMANCE Resolution 18 Bits NMC No missing codes 18 Bits DNL Differential nonlinearity(2) All input ranges –0.9 ±0.6 1.1 LSB INL Integral nonlinearity(2) ADS8691 Input range = ±3 × VREF, ±2.5 × VREF, ±1.5 × VREF, ±1.25 × VREF –3.25 ±1.75 3.25 LSB Input range = ±0.625 × VREF –4.25 ±2.25 4.25 All unipolar ranges(3) –3.5 ±2 3.5 ADS8695, ADS8699 All input ranges –3 ±1.5 3 EO Offset error(4) At TA = 25°C All bipolar ranges(5) –1 ±0.2 1 mV All unipolar ranges(3) –2 ±0.2 2 Offset error drift with temperature All input ranges –3 ±0.75 3 ppm/°C EG Gain error(6) At TA = 25°C, all input ranges –0.025 ±0.01 0.025 %FSR Gain error drift with temperature(7) All input ranges –5 ±1 5 ppm/°C DYNAMIC CHARACTERISTICS SNR Signal-to-noise ratio(8) Input range = ±3 × VREF 91 92.5 dB Input range = ±2.5 × VREF 91 92.5 Input range = ±1.5 × VREF 90 91.5 Input range = ±1.25 × VREF 90 91.5 Input range = ±0.625 × VREF 87.75 90 Input range = 3 × VREF 89.5 91 Input range = 2.5 × VREF 89.5 91 Input range = 1.5 × VREF 88 91 Input range = 1.25 × VREF 88 90 THD Total harmonic distortion(9)(8) All input ranges –110 dB SINAD Signal-to-noise + distortion(8) Input range = ±3 × VREF 90.9 92.5 dB Input range = ±2.5 × VREF 90.9 92.5 Input range = ±1.5 × VREF 89.9 91.5 Input range = ±1.25 × VREF 89.9 91.5 Input range = ±0.625 × VREF 87.65 90 Input range = 3 × VREF 89.25 91 Input range = 2.5 × VREF 89.25 91 Input range = 1.5 × VREF 87.75 90 Input range = 1.25 × VREF 87.75 90 SFDR Spurious-free dynamic range(8) All input ranges 114 dB |
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