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ADS1204IRHBR Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1204IRHBR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 29 page ADS1204 SBAS301C – OCTOBER 2003 – REVISED FEBRUARY 2009........................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) Over recommended operating free-air temperature range at –40°C to +105°C, AVDD = 5V, BVDD = 3V, CH x+ = 0.5V to 4.5V, CH x– = 2.5V, REFIN = REFOUT = internal +2.5V, CLKIN = 20MHz, and 16-bit Sinc 3 filter with decimation by 256, unless otherwise noted. ADS1204 PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT AC ACCURACY VIN = ±2VPP at 5kHz; –96 –88 dB –40°C ≤ TA ≤ +85°C THD Total harmonic distortion VIN = ±2VPP at 5kHz; –96 –87 dB –40°C ≤ TA ≤ +105°C SFDR Spurious-free dynamic range VIN = ±2VPP at 5kHz 92 100 dB SNR Signal-to-noise ratio VIN = ±2VPP at 5kHz 86 89 dB SINAD Signal-to-noise + distortion VIN = ±2VPP at 5kHz 85 89 dB Channel-to-channel isolation(5) VIN = ±2VPP at 50kHz 85 dB ENOB Effective number of bits 14 14.5 Bits VOLTAGE REFERENCE OUTPUT VOUT Reference voltage output 2.450 2.5 2.550 V dVOUT/dT Output voltage temperature drift ±20 ppm/°C f = 0.1Hz to 10Hz, CL = 10µF 10 µVrms Output voltage noise f = 10Hz to 10kHz, CL = 10µF 12 µVrms PSRR Power-supply rejection ratio 60 dB IOUT Output current 10 µA ISC Short-circuit current 0.5 mA Turn-on settling time to 0.1% at CL = 0 100 µs VOLTAGE REFERENCE INPUT VIN Reference voltage input 0.5 2.5 2.6 V Reference input resistance 100 M Ω Reference input capacitance 5 pF Reference input current 1 µA DIGITAL INPUTS(6) Logic family CMOS with Schmitt Trigger VIH High-level input voltage 0.7 × BVDD BVDD + 0.3 V VIL Low-level input voltage –0.3 0.3 × BVDD V IIN Input current VI = BVDD or GND ±50 nA CI Input capacitance 5 pF DIGITAL OUTPUTS(6) Logic family CMOS VOH High-level output voltage BVDD = 4.5V, IOH = –100µA 4.44 V VOL Low-level output voltage BVDD = 4.5V, IOL = +100µA 0.5 V CO Output capacitance 5 pF CL Load capacitance 30 pF Data format Bit stream (5) Specified by design. (6) Applicable for 5.0V nominal supply: BVDD (min) = 4.5V and BVDD (max) = 5.5V. 4 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): ADS1204 |
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