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AD7817ARUZ-REEL7 Folha de dados(PDF) 4 Page - Analog Devices |
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AD7817ARUZ-REEL7 Folha de dados(HTML) 4 Page - Analog Devices |
4 / 20 page AD7817/AD7818 Data Sheet Rev. D | Page 4 of 20 Parameter AVersion1 BVersion1 SVersion1 Unit Test Conditions/Comments POWER REQUIREMENTS (AD7817 ONLY) V DD 5.5 5.5 5.5 V max For specified performance 2.7 2.7 2.7 V min I DD Logic inputs = 0 V or V DD Normal Operation 2 2 2 mA max 1.6 mA typical Using External Reference 1.75 1.75 1.75 mA max 2.5 V external reference connected Power-Down (V DD = 5 V) 10 10 12.5 µA max 5.5 µA typical Power-Down (V DD = 3 V) 4 4 4.5 µA max 2 µA typical Auto Power-Down Mode V DD = 3 V 10 SPS Throughput Rate 6.4 6.4 6.4 µW typ See the Power vs. Throughput section for description of power dissipation in auto power-down mode 1 kSPS Throughput Rate 48.8 48.8 48.8 µW typ 10 kSPS Throughput Rate 434 434 434 µW typ Power-Down 12 12 13.5 µW max Typically 6 µW DYNAMIC PERFORMANCE (AD7818 ONLY)6 Sample rate = 100 kSPS, any channel, f IN = 20 kHz Signal-to-(Noise + Distortion) Ratio2 57 dB min Total Harmonic Distortion2 –65 dB max −75 dB typical Peak Harmonic or Spurious Noise2 –67 dB typ −75 dB typical Intermodulation Distortion2 fa = 19.9 kHz, fb = 20.1 kHz Second-Order Terms –67 dB typ Third-Order Terms –67 dB typ Channel-to-Channel Isolation2 –80 dB typ f IN = 20 kHz DC ACCURACY (AD7818 ONLY)6 Any channel Resolution 10 Bits Minimum Resolution for Which No Missing Codes are Guaranteed 10 Bits Relative Accuracy2 ±1 LSB max Differential Nonlinearity2 ±1 LSB max Gain Error2 ±10 LSB max Offset Error2 ±4 LSB max TEMPERATURE SENSOR (AD7818 ONLY)6 Measurement Error External reference V REF = 2.5 V Ambient Temperature 25°C ±2 °C max T MIN to TMAX ±3 °C max Measurement Error On-chip reference Ambient Temperature 25°C ±2 °C max T MIN to TMAX ±3 °C max Temperature Resolution 1/4 °C/LSB ON-CHIP REFERENCE (AD7818 ONLY)5 Nominal 2.5 V Temperature Coefficient3 30 ppm/°C typ CONVERSION RATE (AD7818 ONLY)6 Track-and-Hold Acquisition Time4 400 ns max Source impedance < 10 Ω Conversion Time Temperature Sensor 27 µs max Channel 1 9 µs max |
Nº de peça semelhante - AD7817ARUZ-REEL7 |
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Descrição semelhante - AD7817ARUZ-REEL7 |
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