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ADS7854IPW Datasheet(PDF) 8 Page - Texas Instruments |
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ADS7854IPW Datasheet(HTML) 8 Page - Texas Instruments |
8 / 69 page ADS8354, ADS7854, ADS7254 SBAS556B – OCTOBER 2013 – REVISED AUGUST 2014 www.ti.com 7.7 Electrical Characteristics: ADS7254 All minimum and maximum specifications are at TA = –40°C to 125°C, AVDD = 5 V, DVDD = 3.3 V, VREF_A = VREF_B = VREF = 2.5 V (internal), and fDATA = 1 MSPS, unless otherwise noted. Typical values are at TA = 25°C, AVDD = 5 V, and DVDD = 3.3 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RESOLUTION Resolution 12 Bits DC ACCURACY(1) NMC No missing codes 12 Bits INL Integral nonlinearity –1 ±0.25 1 LSB DNL Differential nonlinearity –0.99 ±0.25 1 LSB EIO Input offset error –1 ±0.5 1 mV EIO match ADC_A to ADC_B –1 ±0.5 1 mV dEIO/dT Input offset thermal drift ±1 μV/°C EG Gain error Referenced to the voltage at REFIO_x –0.1 ±0.05 0.1 %FS EG match ADC_A to ADC_B –0.1 ±0.05 0.1 %FS dEG/dT Gain error thermal drift Referenced to the voltage at REFIO_x ±1 ppm/°C CMRR Common-mode rejection ratio Both ADCs, dc to 20 kHz 70 dB AC ACCURACY(2) VREF = 2.5 V, 73.4 dB ±VREF input range VREF = 2.5 V, SINAD Signal-to-noise + distortion 72.4 73.4 dB ±2 × VREF input range VREF = 5 V (external), 73.9 dB ±VREF input range VREF = 2.5 V, 73.5 dB ±VREF input range VREF = 2.5 V, SNR Signal-to-noise ratio 72.5 73.5 dB ±2 × VREF input range VREF = 5 V (external), 74 dB ±VREF input range VREF = 2.5 V, –92 dB ±VREF input range VREF = 2.5 V, THD Total harmonic distortion –92 dB ±2 × VREF input range VREF = 5 V (external), –92 dB ±VREF input range VREF = 2.5 V, 95 dB ±VREF input range VREF = 2.5 V, SFDR Spurious-free dynamic range 95 dB ±2 × VREF input range VREF = 5 V (external), 95 dB ±VREF input range fIN = 15 kHz at 10 %FS, ISOXT ADC-to-ADC isolation –100 dB fNOISE = 25 kHz at FS (1) LSB = least significant bit. (2) All ac parameters are tested at –0.5 dBFS and a 20-kHz input frequency. 8 Submit Documentation Feedback Copyright © 2013–2014, Texas Instruments Incorporated Product Folder Links: ADS8354 ADS7854 ADS7254 |
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