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ADS7808 Arkusz danych(PDF) 2 Page - Burr-Brown (TI) |
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ADS7808 Arkusz danych(HTML) 2 Page - Burr-Brown (TI) |
2 / 13 page ADS7808 2 SBAS018A www.ti.com Analog Inputs: R1IN .......................................................................... ±25V R2IN .......................................................................... ±25V R3IN .......................................................................... ±25V CAP ..................................... VANA+0.3V to AGND2 –0.3V REF ....................................... Indefinite Short to AGND2, Momentary Short to VANA Ground Voltage Differences: DGND, AGND2 ................................. ±0.3V VANA ...................................................................................................... 7V VDIG to VANA ....................................................................................... +0.3 VDIG ....................................................................................................... 7V Digital Inputs ............................................................. –0.3V to VDIG +0.3V Maximum Junction Temperature .................................................. +165 °C Internal Power Dissipation ............................................................ 700mW Lead Temperature (soldering, 10s) .............................................. +300 °C NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. ELECTRICAL CHARACTERISTICS At TA = –40°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors as shown in Figure 4, unless otherwise specified. ADS7808U ADS7808UB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS 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. MAXIMUM MINIMUM INTEGRAL SIGNAL-TO- SPECIFIED LINEARITY (NOISE + DISTORTION) PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT ERROR (LSB) RATIO (DB) PACKAGE-LEAD DESIGNATOR(1) RANGE MARKING NUMBER MEDIA, QUANTITY ADS7808U ±0.9 70 SO-20 DW –40 °C to +85°C ADS7808U ADS7808U Tube, 38 " " " " " " " ADS7808U/1K Tape and Reel, 1000 ADS7808UB ±0.45 72 " " " ADS7808UB ADS7808UB Tube, 38 " " " " " " " ADS7808UB/1K Tape and Reel, 1000 PACKAGE/ORDERING INFORMATION NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com. RESOLUTION 12 ✻ Bits ANALOG INPUT Voltage Ranges ±10V, 0V to 5V, etc. (See Table I) Impedance See Table I Capacitance 35 ✻ pF THROUGHPUT SPEED Conversion Time 5.7 8 ✻✻ µs Complete Cycle Acquire and Convert 10 ✻ µs Throughput Rate 100 ✻ kHz DC ACCURACY Integral Linearity Error ±0.9 ±0.45 LSB(1) Differential Linearity Error ±0.9 ±0.45 LSB No Missing Codes Specified ✻ Transition Noise(2) 0.1 ✻ LSB Full Scale Error(3,4) ±0.5 ±0.25 % Full Scale Error Drift ±7 ±5 ppm/ °C Full Scale Error(3,4) Ext. 2.5000V Ref ±0.5 ±0.25 % Full Scale Error Drift Ext. 2.5000V Ref ±2 ✻ ppm/ °C Bipolar Zero Error(3) Bipolar Ranges ±10 ✻ mV Bipolar Zero Error Drift Bipolar Ranges ±2 ±2 ppm/ °C Unipolar Zero Error(3) 0V to 10V Range ±5 ✻ mV 0V to 4V Range ±3 ✻ mV 0V to 5V Range ±3 ✻ mV Unipolar Zero Error Drift Unipolar Ranges ±2 ✻ ppm/ °C Recovery to Rated Accuracy 1 µF Capacitor to CAP 1 ✻ ms after Power Down Power Supply Sensitivity +4.75V < VD < +5.25V ±0.5 ✻ LSB (VDIG = VANA = VD) AC ACCURACY Spurious-Free Dynamic Range fIN = 45kHz 80 90 ✻✻ dB(5) Total Harmonic Distortion fIN = 45kHz –90 –80 ✻✻ dB Signal-to-(Noise+Distortion) fIN = 45kHz 70 73 72 ✻ dB Signal-to-Noise fIN = 45kHz 70 73 72 ✻ dB Full-Power Bandwidth(6) 250 ✻ kHz |
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