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ADS1675 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS1675 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 38 page ADS1675 www.ti.com SBAS416D – DECEMBER 2008 – REVISED AUGUST 2010 ELECTRICAL CHARACTERISTICS All specifications are at TA = –40°C to +85°C, AVDD = 5V, DVDD = 3V, fCLK = 32MHz, VREF = +3V, and RBIAS = 7.5kΩ, unless otherwise noted. ADS1675 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUTS Full-scale input voltage VIN = (AINP – AINN) ±VREF V Common-mode input voltage VCM = (AINP + AINN)/2 2.5 V AC PERFORMANCE Data rate (fDATA) See Table 1 kSPS Inputs shorted together, Low-Latency path, 100 103 fDATA = 4MSPS Inputs shorted together, Low-Latency path, Dynamic range 100.5 103.5 dB fDATA =2MSPS Inputs shorted together, Low-Latency path, 108 111 fDATA = 125kSPS fIN = 10kHz, –0.5dBFS, 92 Wide-Bandwidth path, fDATA = 4MSPS fIN = 10kHz, –0.5dBFS, Signal-to-noise ratio (SNR) 97 dB Wide-Bandwidth path, fDATA = 2MSPS fIN = 1kHz, –0.5dBFS, 107 Wide-Bandwidth path, fDATA = 125kSPS fIN = 10kHz, –0.5dBFS, –103 Wide-Bandwidth path, fDATA = 4MSPS fIN = 10kHz, –0.5dBFS, Total harmonic distortion (THD) –103 dB Wide-Bandwidth path, fDATA = 2MSPS fIN = 1kHz, –0.5dBFS, –107 Wide-Bandwidth path, fDATA = 125kSPS fIN = 1kHz, –0.5dBFS, Wide-Bandwidth path, 120 fDATA = 4MSPS, signal harmonics excluded Spurious-free dynamic range (SFDR) dB fIN = 10kHz, –0.5dBFS, Wide-Bandwidth path, 120 fDATA = 4MSPS, signal harmonics excluded DC PRECISION Low-speed mode (DRATE = 000 to 011) 24 Bits Resolution High-speed mode (DRATE = 100, 101) 23 Bits 24 Low-speed mode (DRATE = 000 to 011) Bits (monotonic) Differential nonlinearity 23 High-speed mode (DRATE = 100, 101) Bits (monotonic) Integral nonlinearity 3 15 ppm of FSR Offset error TA = +25°C –5 5 mV Offset error drift 4 mV/°C Gain error TA = +25°C 1 % Gain error drift 4 ppm/°C Noise See Noise Performance table (Table 1) Common-mode rejection At dc 71 dB DIGITAL FILTER CHARACTERISTICS (WIDE-BANDWIDTH PATH) Passband 0 0.424fDATA Hz Passband ripple ±0.00002dB dB –0.1dB attenuation 0.432fDATA Hz Passband transition –3dB attenuation 0.488fDATA Hz Stop band 0.576fDATA fCLK – 0.576fDATA Hz Stop band attenuation 86 dB Group delay 28 tDRDY Settling time See the Wide-Bandwidth Filter section Copyright © 2008–2010, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS1675 |
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