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AD7884AP Datasheet(PDF) 2 Page - Analog Devices |
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AD7884AP Datasheet(HTML) 2 Page - Analog Devices |
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2 / 16 page  REV. C –2– AD7884/AD7885/AD7885A–SPECIFICATIONS (V DD = +5 V 5%, VSS = –5 V 5%, VREF+S = +3 V; AGND = DGND = GND = 0 V; fSAMPLE = 166 kHz. All specifications TMIN to TMAX, unless otherwise noted.) AB Parameter Version 1, 2, 3 Versions 1, 2, 3 Units Test Conditions/Comments DC ACCURACY Resolution 16 16 Bits Minimum Resolution for Which No Missing Codes Are Guaranteed 16 16 Bits Integral Nonlinearity ±0.0075 % FSR max Typically 0.003% FSR Positive Gain Error ±0.03 ±0.03 % FSR typ AD7885AN/BN: 0.1% typ Positive Gain Error ±0.05 % FSR max AD7885BN: 0.2% max Gain TC 4 ±2 ±2 ppm FSR/ °C typ Bipolar Zero Error ±0.05 ±0.05 % FSR typ Bipolar Zero Error ±0.15 % FSR max Bipolar Zero TC 4 ±8 ±8 ppm FSR/ °C typ Negative Gain Error ±0.03 ±0.03 % FSR typ AD7885AN/BN: 0.1% typ Negative Gain Error ±0.05 % FSR max AD7885BN: 0.2% max Offset TC 4 ±2 ±2 ppm FSR/ °C typ Noise 120 120 µV rms typ 78 µV rms typical in ±3 V Input Range DYNAMIC PERFORMANCE Signal to (Noise + Distortion) Ratio 84 84 dB min Input Signal: ±5 V, 1 kHz Sine Wave, Typically 86 dB 82 82 dB typ Input Signal: ±5 V, 12 kHz Sine Wave Total Harmonic Distortion –88 –88 dB max Input Signal: ±5 V, 1 kHz Sine Wave –84 –84 dB typ Input Signal: ±5 V, 12 kHz Sine Wave Peak Harmonic or Spurious Noise –88 –88 dB max Input Signal: ±5 V, 1 kHz Sine Wave Intermodulation Distortion (IMD) 2nd Order Terms –84 –84 dB typ fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz 3rd Order Terms –84 –84 dB typ fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz CONVERSION TIME Conversion Time 5.3 5.3 µs max Acquisition Time 2.5 2.5 µs max Throughput Rate 166 166 kSPS max There is an overlap between conversion and acquisition. ANALOG INPUT Voltage Range ±5 ±5 Volts ±3 ±3 Volts Input Current ±4 ±4 mA max REFERENCE INPUT Reference Input Current ±5 ±5 mA max VREF + S = +3 V LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 V max VDD = 5 V ± 5% Input Current, IIN ±10 ±10 µA max Input Level = 0 V to VDD Input Capacitance, CIN 4 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 4.0 V min ISOURCE = 40 µA Output Low Voltage, VOL 0.4 0.4 V max ISINK = 1.6 mA DB15–DB0 Floating-State Leakage Current 10 10 µA max Floating-State Output Capacitance 4 15 15 pF max POWER REQUIREMENTS VDD +5 +5 V nom ±5% for Specified Performance VSS –5 –5 V nom ±5% for Specified Performance IDD 35 35 mA max Typically 25 mA ISS 30 30 mA max Typically 25 mA Power Supply Rejection Ratio ∆Gain/∆V DD 86 86 dB typ ∆Gain/∆V SS 86 86 dB typ Power Dissipation 325 325 mW max Typically 250 mW NOTES 1Temperature ranges are as follows: A, B Versions: –40 °C to +85°C. 2V IN = ± 5 V. 3The AD7885AAP has the same specs as the AD7884AP. The AD7885ABP has the same specs as the AD7884BP. 4Sample tested to ensure compliance. Specifications subject to change without notice. |
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