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ADS1217IPFBT bảng dữ liệu(PDF) 2 Page - Texas Instruments |
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ADS1217IPFBT bảng dữ liệu(HTML) 2 Page - Texas Instruments |
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2 / 34 page  ADS1217 2 SBAS260C www.ti.com ELECTRICAL CHARACTERISTICS: AVDD = 5V All specifications at –40 °C to +85°C, AV DD = +5V, DVDD = +2.7V to 5.25V, fMOD = 19.2kHz, PGA = 1, Buffer ON, RDAC = 150kΩ, fDATA = 10Hz, and VREF = +2.5V, unless otherwise specified. AVDD to AGND ...................................................................... –0.3V to +6V DVDD to DGND ...................................................................... –0.3V to +6V Input Current ............................................................... 100mA, Momentary Input Current ................................................................. 10mA, Continuous AIN ................................................................... GND –0.5V to AVDD + 0.5V AVDD to DVDD ........................................................................... –6V to +6V AGND to DGND ................................................................. –0.3V to +0.3V Digital Input Voltage to GND .................................... –0.3V to DVDD + 0.3V Digital Output Voltage to GND ................................. –0.3V to DVDD + 0.3V Maximum Junction Temperature ................................................... +150 °C Operating Temperature Range ......................................... –40 °C to +85°C Storage Temperature Range .......................................... –60 °C to +150°C Lead Temperature (soldering, 10s) .............................................. +300 °C NOTE: (1) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability. ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instru- ments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SPECIFIED PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE-LEAD DESIGNATOR RANGE MARKING NUMBER MEDIA, QUANTITY ADS1217 TQFP-48 PFB –40 °C to +85°C ADS1217 ADS1217IPFBT Tape and Reel, 250 " """ " ADS1217IPFBR Tape and Reel, 2000 NOTE: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet, or see the TI website at www.ti.com. PACKAGE/ORDERING INFORMATION(1) ADS1217 PARAMETER CONDITIONS MIN TYP MAX UNITS ANALOG INPUT (AIN0 – AIN7, AINCOM) Full-Scale Input Voltage (AIN+) – (AIN–) ±2V REF /PGA V Analog Input Voltage Buffer OFF AGND – 0.1 AVDD + 0.1 V Buffer ON AGND + 0.05 AVDD – 1.5 V Differential Input Impedance Buffer OFF 10/PGA M Ω Input Current Buffer ON 0.5 nA Bandwidth Fast Settling Filter –3dB 0.469fDATA Hz Sinc2 Filter –3dB 0.318fDATA Hz Sinc3 Filter –3dB 0.262fDATA Hz Programmable Gain Amplifier User Selectable Gain Ranges 1 128 Burnout Current Sources 2 µA OFFSET DAC Offset DAC Range ±V REF /(PGA) V Offset DAC Monotonicity 8 Bits Offset DAC Gain Error ±1% Offset DAC Gain Error Drift 1 ppm/ °C SYSTEM PERFORMANCE Resolution 24 Bits No Missing Codes Sinc3 Filter 24 Bits Integral Nonlinearity End Point Fit, Differential Input, 0.0003 0.0012 % of FSR(1) Buffer Off Offset Error Before Calibration 7.5 ppm of FSR Offset Drift 0.02 ppm of FSR/ °C Gain Error After Calibration 0.005 % Gain Error Drift 0.5 ppm/ °C Common-Mode Rejection at DC 100 dB fCM = 60Hz, fDATA = 10Hz 130 dB fCM = 50Hz, fDATA = 50Hz 120 dB fCM = 60Hz, fDATA = 60Hz 120 dB Normal-Mode Rejection fSIG = 50Hz, fDATA = 50Hz 100 dB fSIG = 60Hz, fDATA = 60Hz 100 dB Output Noise See Typical Characteristics Power-Supply Rejection at DC, dB = –20log( ∆V OUT /∆VDD) (2) 80 95 dB NOTES: (1) FSR is Full-Scale Range. (2) ∆V OUT is change in digital result. (3) 12pF switched capacitor at fSAMP clock frequency. |
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