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ADS1256IDBR Datasheet(PDF) 4 Page - Burr-Brown (TI) |
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ADS1256IDBR Datasheet(HTML) 4 Page - Burr-Brown (TI) |
4 / 39 page ADS1255 ADS1256 SBAS288D − JUNE 2003 − REVISED AUGUST 2004 www.ti.com 4 ELECTRICAL CHARACTERISTICS (continued) All specifications at −40 °C to +85°C, AVDD = +5V, DVDD = +1.8V, fCLKIN = 7.68MHz, PGA = 1, and VREF = +2.5V, unless otherwise noted. PARAMETER UNIT MAX TYP MIN TEST CONDITIONS Power-Supply AVDD 4.75 5.25 V DVDD 1.8 3.6 V Power-down mode 2 µA Standby mode 20 µA AVDD current Normal mode, PGA = 1, Buffer off 7 10 mA AVDD current Normal mode, PGA = 64, Buffer off 16 22 mA Normal mode, PGA = 1, Buffer on 13 19 mA Normal mode, PGA = 64, Buffer on 36 50 mA Power-down mode 2 µA DVDD current Standby mode, CLKOUT off, DVDD = 3.3V 95 µA DVDD current Normal mode, CLKOUT off, DVDD = 3.3V 0.9 2 mA Power dissipation Normal mode, PGA = 1, Buffer off, DVDD = 3.3V 38 57 mW Power dissipation Standby mode, DVDD = 3.3V 0.4 mW Temperature Range Specified −40 +85 °C Operating −40 +105 °C Storage −60 +150 °C (1) See text for more information on input impedance. (2) SPS = samples per second. (3) FSR = full-scale range = 4VREF/PGA. (4) fCM is the frequency of the common-mode input signal. (5) Placing a notch of the digital filter at 60Hz (setting fDATA = 60SPS, 30SPS, 15SPS, 10SPS, 5SPS, or 2.5SPS) will further improve the common-mode rejection of this frequency. (6) The reference input range with Buffer on is restricted only if self-calibration or gain self-calibration is to be used. If using system calibration or writing calibration values directly to the registers, the entire Buffer off range can be used. |
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