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ADUC814ARU Datasheet(PDF) 4 Page - Analog Devices |
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ADUC814ARU Datasheet(HTML) 4 Page - Analog Devices |
4 / 72 page ADuC814 Rev. A | Page 4 of 72 SPECIFICATIONS Table 1. AVDD = DVDD = 2.7 V to 3.3 V or 4.5 V to 5.5 V, VREF = 2.5 V internal reference, XTAL1/XTAL2 = 32.768 kHz crystal. All specifications TMIN to TMAX, unless otherwise specified1 Parameter VDD = 5 V VDD = 3 V Unit Test Conditions ADC CHANNEL SPECIFICATIONS A GRADE DC ACCURACY2,3 fSAMPLE = 147 kHz Resolution 12 12 Bits Integral Nonlinearity 2 2 LSB max 2.5 V internal reference 1 1 LSB typ 2.5 2.5 LSB typ 1.0 V external reference Differential Nonlinearity 4 4 LSB max 2.5 V internal reference 2 2 LSB typ 5 5 LSB typ 1.0 V external reference CALIBRATED ENDPOINT ERRORS4, 5 Offset Error 5 5 LSB max Offset Error Match 1 1 LSB typ Gain Error 5 5 LSB max Gain Error Match 1 1 LSB typ DYNAMIC PERFORMANCE6 fIN = 10 kHz sine wave fSAMPLE = 147 kHz Signal to Noise Ratio (SNR)7 62.5 62.5 dB typ Total Harmonic Distortion (THD) –65 –65 dB typ Peak Harmonic or Spurious Noise –65 –65 dB typ Channel-to-Channel Crosstalk8 –80 –80 dB typ B GRADE DC ACCURACY2, 3 fSAMPLE = 147 kHz Resolution 12 12 Bits Integral Nonlinearity 1 1 LSB max 2.5 V internal reference 0.3 0.3 LSB typ 1.5 1.5 LSB max 1.0 V external reference11 Differential Nonlinearity 0.9 0.9 LSB max 2.5 V internal reference 0.25 0.25 LSB typ +1.5/–0.9 1.5/–0.9 LSB max 1.0 V external reference11 Code Distribution 1 1 LSB typ ADC input is a dc voltage CALIBRATED ENDPOINT ERRORS4, 5 Offset Error 2 3 LSB max Offset Error Match 1 1 LSB typ Gain Error 2 3 LSB max Gain Error Match 1 1 LSB typ DYNAMIC PERFORMANCE6 fIN = 10 kHz sine wave fSAMPLE = 147 kHz Signal to Noise Ratio (SNR)7 71 71 dB typ Total Harmonic Distortion (THD) –85 –85 dB typ Peak Harmonic or Spurious Noise –85 –85 dB typ Channel-to-Channel Crosstalk8 –80 –80 dB typ ANALOG INPUT Input Voltage Ranges 0 to VREF 0 to VREF V Leakage Current 1 1 µA max Input Capacitance 32 32 pF typ |
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