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ADS131A02IPBSR Datasheet(PDF) 8 Page - Texas Instruments |
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ADS131A02IPBSR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 85 page 8 ADS131A02, ADS131A04 SBAS590A – MARCH 2016 – REVISED MARCH 2016 www.ti.com Product Folder Links: ADS131A02 ADS131A04 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Electrical Characteristics (continued) Minimum and maximum specifications apply from TA = –40°C to +125°C. Typical specifications are at TA = 25°C. All specifications are at VIOVDD = 3.3 V, VAVDD = 2.5 V, VAVSS = –2.5 V, VNCPEN (register 0Bh, bit 7) = 0, internal VREF = 2.442 V, fCLKIN = 16.384 MHz, fMOD = 4.096 MHz, data rate = 8 kSPS, and gain = 1 (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL REFERENCE VOLTAGE (REFP – REFN) VREF Reference output voltage VREF_4V bit = 0 2.442 V VREF_4V bit = 1, VAVDD – VAVSS > 4.5 V 4.0 Accuracy ±0.1% Temperature drift Including reference buffer drift, –40°C ≤ TA ≤ +125°C 4 20 ppm/°C Start-up time REFEXT = 1-µF to AVSS, settled to 1% 0.2 ms REFEXT = 1-µF to AVSS, settled to 0.1% 1.2 REFEXT = 1-µF to AVSS, settled to 0.01% 250 REFP source capability 100 µA EXTERNAL CLOCK SOURCE fICLK Internal ICLK frequency (SCLK output in master mode) CLKSRC bit = 0 0.2 8.192 12.5 MHz fMOD ADC modulator frequency High-resolution mode VNCPEN bit = 0 0.1 4.096 4.25 MHz VNCPEN bit = 1 0.512 4.096 4.25 Low-power mode VNCPEN bit = 0 0.1 1.024 1.05 VNCPEN bit = 1 0.512 1.024 1.05 DIGITAL INPUT/OUTPUT VIH High-level input voltage 0.8 IOVDD IOVDD V VIL Low-level input voltage GND 0.2 IOVDD V VOH High-level output voltage IOH = 1 mA 0.8 IOVDD V VOL Low-level output voltage IOL = –1 mA 0.2 IOVDD V IIN Input current 0 V < VDigital Input < IOVDD –10 10 μA POWER-SUPPLY Power dissipation Standby mode, fCLKIN = 16.384 MHz 2.6 mW POWER-SUPPLY (Negative Charge Pump Enabled, VNCPEN = 1) VNCP Negative charge pump output voltage –2.25 –1.95 –1.65 V AVDD current ADS131A02, high-resolution mode 3.2 mA ADS131A02, low-power mode 0.9 ADS131A04, high-resolution mode 4.0 ADS131A04, low-power mode 1.1 IOVDD current ADS131A02, high-resolution mode 0.6 mA ADS131A02, low-power mode 0.5 ADS131A04, high-resolution mode 0.8 ADS131A04, low-power mode 0.5 POWER-SUPPLY (ADS131A02, VNCPEN = 1, VAVDD = 3.3 V, VAVSS = 0 V) Power dissipation High-resolution mode 12.5 mW Low-power mode 4.6 POWER-SUPPLY (ADS131A04, VNCPEN = 1, VAVDD = 3.3 V, VAVSS = 0 V) Power dissipation High-resolution mode 15.8 mW Low-power mode 5.3 |
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