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ADS7828EIPWRQ1 Datasheet(PDF) 8 Page - Texas Instruments |
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ADS7828EIPWRQ1 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 35 page ADS7828-Q1 SBAS456B – DECEMBER 2008 – REVISED JANUARY 2016 www.ti.com 6.7 Electrical Characteristics for ADS7828E +VDD = 5 V, VREF = External 5 V, SCL clock frequency = 3.4 MHz (high-speed mode), over operating free-air temperature range, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Analog Input Ileak Leakage current ±1 µA CI 25 pF Overall Performance No missing codes 12 bits Integral linearity error ±1 ±2 LSB(1) Differential linearity error ±1 LSB Offset error ±1 ±3 LSB Offset error match ±1.5 LSB Gain error ±1 ±3 LSB Gain error match ±1 LSB Vn Noise RMS 33 µV PSRR Power-supply ripple rejection 82 dB Sampling Dynamics High-speed mode: SCL = 3.4 MHz 50 Throughput frequency Fast mode: SCL = 400 kHz 8 kHz Standard mode: SCL = 100 kHz 2 Conversion time 6 µs AC Accuracy THD Total harmonic distortion(2) VIN = 25 VPP at 10 kHz –82 dB Signal-to-noise ratio VIN = 25 VPP at 10 kHz 72 dB Signal-to-(noise + distortion) ratio VIN = 25 VPP at 10 kHz 71 dB Spurious-free dynamic range VIN = 25 VPP at 10 kHz 86 dB Channel-to-channel isolation 120 dB Voltage Reference Output VO Output voltage 2.475 2.5 2.525 V Internal reference drift 15 ppm/°C Internal reference on 110 Ω zo Output impedance Internal reference off 1 G Ω IQ Quiescent current 1300 µA Voltage Reference Input rI Input resistance 1 G Ω Current drain 20 µA Digital Input and Output VOL Low-level output voltage Minimum 3-mA sink current 0.4 V IIH High-level input current VIH = +VDD + 0.5 V 10 µA IIL Low-level input current VIL = –0.3 V –10 µA (1) LSB means Least Significant Bit; with VREF equal to 5 V, one LSB is 1.22 mV. (2) THD is measured to the ninth harmonic. 8 Submit Documentation Feedback Copyright © 2008–2016, Texas Instruments Incorporated Product Folder Links: ADS7828-Q1 |
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