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ADS1192IPBS bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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ADS1192IPBS bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 67 page ADS1191 ADS1192 www.ti.com SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012 ELECTRICAL CHARACTERISTICS (continued) Minimum and maximum specifications apply from –40°C to +85°C. Typical specifications are at +25°C. All specifications at DVDD = 1.8 V, AVDD – AVSS = 3 V (1), V REF = 2.42 V, external fCLK = 512 kHz, data rate = 500 SPS, CFILTER = 4.7 nF (2), and gain = 6, unless otherwise noted. ADS1191, ADS1192 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SYSTEM MONITORS Analog supply reading error 2 % Digital supply reading error 2 % From power supply ramp after power-on-reset 32 ms to DRDY low Device wake up From power-down mode to DRDY low 10 ms From STANDBY mode to DRDY low 10 ms VCAP1 settling time 1% accuracy with 1-µF capacitor 0.5 s Voltage TA = +25°C 145 mV Temperature sensor reading Coefficient 490 μV/°C TEST SIGNAL Signal frequency See Register Map section for settings At dc and 1 Hz Hz Signal voltage See Register Map section for settings ±1 mV Accuracy ±2 % CLOCK Nominal frequency 512 kHz Internal oscillator clock frequency TA = +25°C ±0.5 % –40°C ≤ TA ≤ +85°C ±1.5 % Internal oscillator start-up time 32 μs Internal oscillator power consumption 30 μW CLKSEL pin = 0, CLK_DIV = 0 485 512 562.5 kHz External clock input frequency CLKSEL pin = 0, CLK_DIV = 1 1.94 2.048 2.25 MHz DIGITAL INPUT/OUTPUT (DVDD = 1.8 V to 3.6 V) VIH (DVDD = 0.8 DVDD DVDD + 0.1 V 1.8 V to 3.6 V) VIL(DVDD = –0.1 0.2 DVDD V 1.8 V to 3.6 V) Logic level VIH (DVDD = DVDD – 0.2 V 1.7 V to 1.8 V) VIL (DVDD = 0.2 V 1.7 V to 1.8 V) Input current (IIN) 0 V < VDigitalInput < DVDD –10 +10 μA POWER-SUPPLY REQUIREMENTS (RLD Amplifiers Turned Off) AVDD Analog supply AVDD – AVSS 2.7 3 5.25 V DVDD Digital supply 1.7 1.8 3.6 V AVDD – DVDD –2.1 3.6 V SUPPLY CURRENT AVDD – AVSS = 3 V 205 µA IAVDD ADS1192 AVDD – AVSS = 5 V 250 µA DVDD = 3.3 V 75 µA IDVDD ADS1192 DVDD = 1.8 V 32 µA Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADS1191 ADS1192 |
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