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ADS7853IRTET Datasheet(PDF) 9 Page - Texas Instruments |
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ADS7853IRTET Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 71 page  ADS8353, ADS7853, ADS7253 www.ti.com SBAS584B – OCTOBER 2013 – REVISED AUGUST 2014 7.8 Electrical Characteristics: All Devices 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, and fDATA = maximum, 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 ANALOG INPUT Single-ended input, 0 VREF V AINM_x = GND VREF range Pseudo-differential input, –VREF / 2 VREF / 2 V AINM_x = +VREF / 2 Full-scale input range(1) Single-ended input, FSR (AINP_x – AINM_x) AINM_x = GND, 0 2 × VREF V AVDD ≥ 2 × VREF 2 × VREF range Pseudo-differential input, AINM_x = +VREF, –VREF VREF V AVDD ≥ 2 × VREF VREF range 0 VREF V Absolute input voltage VINP (AINP_x to REFGND) 2 × VREF range, AVDD ≥ 2 × VREF 0 2 × VREF V Single-ended input –0.1 0.1 V VREF range Pseudo-differential input VREF / 2 – 0.1 VREF / 2 VREF / 2 + 0.1 V Absolute input voltage Single-ended input, VINM –0.1 0.1 V (AINM_x to REFGND) AVDD ≥ 2 × VREF 2 × VREF range Pseudo-differential input, VREF – 0.1 VREF VREF + 0.1 V AVDD ≥ 2 × VREF In sample mode 40 pF Ci Input capacitance In hold mode 4 pF Ilkg(i) Input leakage current 0.1 µA INTERNAL VOLTAGE REFERENCE REFDAC_x = 1FFh (default), VREFOUT Reference output voltage 2.495 2.500 2.505 V at 25°C REFDAC_x = 1FFh (default), VREF-match VREF_A to VREF_B matching ±1 mV at 25°C REFDAC_x resolution(2) 1.1 mV Reference voltage dVREFOUT/dT REFDAC_x = 1FFh (default) ±10 ppm/°C temperature drift dVREFOUT/dt Long-term stability 1000 hours 150 ppm Internal reference output RO 1 Ω impedance Reference output dc IREFOUT 2 mA current Recommended output CREFOUT 10 µF capacitor Reference output settling tREFON For CREF = 10 μF 8 ms time VOLTAGE REFERENCE INPUT VREF range 2.4 2.5 AVDD V VREF Reference voltage (input) 2 × VREF range 2.4 2.5 AVDD / 2 V Average Reference input IREF Per ADC 300 μA current External ceramic CREF 10 μF reference capacitance Ilkg(dc) DC leakage current ±0.1 μA (1) Ideal input span, does not include gain or offset error. (2) Refer to the Reference section for more details. Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: ADS8353 ADS7853 ADS7253 |
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