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AD7827BRZ Fiches technique(PDF) 2 Page - Analog Devices |
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AD7827BRZ Fiches technique(HTML) 2 Page - Analog Devices |
2 / 12 page –2– REV. 0 AD7827–SPECIFICATIONS (VDD = +3 V 10%, VDD = +5 V 10%, GND = 0 V, VREFIN/REFOUT = 2.5 V. All specifications –40 C to +105 C unless otherwise noted.) Parameter Version B Units Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 30 kHz; fSAMPLE = 1 MHz Signal-to-(Noise + Distortion) Ratio 1 48 dB min Total Harmonic Distortion 1 –55 dB max Peak Harmonic or Spurious Noise 1 –55 dB max Intermodulation Distortion 1 fa = 29.1 kHz; fb = 29.9 kHz 2nd Order Terms –65 dB typ 3rd Order Terms –65 dB typ DC ACCURACY Resolution 8 Bits Integral Nonlinearity (INL) 1 ±0.5 LSB max Differential Nonlinearity (DNL) 1 ±0.5 LSB max Offset Error 1 ±1.5 LSB max Gain Error 1 ±2 LSB max Minimum Resolution for Which No Missing Codes are Guaranteed 8 Bits ANALOG INPUT 2 Input Voltage Range 0 V min VDD = 5 V 2.5 V max 0 V min VDD = 3 V 2 V max Input Leakage Current ±1 µA max Input Capacitance 10 pF max REFERENCE INPUT VREFIN/REFOUT Input Voltage Range 2.55 V max 2.45 V min Input Current ±1 µA typ ±50 µA max LOGIC INPUTS CONVST, SCLK VINH, Input High Voltage 2.4 V min VDD = 5 V ± 10% VINL, Input Low Voltage 0.8 V max VDD = 5 V ± 10% VINH, Input High Voltage 2.0 V min VDD = 3 V ± 10% VINL, Input Low Voltage 0.4 V max VDD = 3 V ± 10% Input Current, IINH ±1 µA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance 10 pF max LOGIC OUTPUTS DOUT, RFS VOH, Output High Voltage ISOURCE = 200 µA 4 V max VDD = 5 V ± 10% 2.4 V min VDD = 3 V ± 10% VOL, Output Low Voltage ISINK = 200 µA 0.4 V max VDD = 5 V ± 10% 0.2 V min VDD = 3 V ± 10% High Impedance Leakage Current ±1 µA max High Impedance Capacitance 15 pF max CONVERSION RATE Conversion Time 420 ns max Track/Hold Acquisition Time 200 ns max |
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