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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AD7883 Datenblatt(PDF) 2 Page - Analog Devices |
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AD7883 Datenblatt(HTML) 2 Page - Analog Devices |
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2 / 12 page  REV. 0 –2– AD7883–SPECIFICATIONS (V DD = +3 V to +3.6 V, VREF = VDD, AGND = DGND = 0 V, fCLKIN = 2 MHz, MODE = Logic High. All specifications TMIN to TMAX unless othewise noted.) Parameter B Versions 1 Units Test Conditions/Comments DYNAMIC PERFORMANCE 2 Signal-to-Noise Ratio 3 (SNR) 69 dB min Typically SNR Is 71 dB VIN = 1 kHz Sine Wave, fSAMPLE = 50 kHz Total Harmonic Distortion (THD) –80 dB typ VIN = 1 kHz Sine Wave, fSAMPLE = 50 kHz Peak Harmonic or Spurious Noise –80 dB typ VIN = 1 kHz, fSAMPLE = 50 kHz Intermodulation Distortion (IMD) Second Order Terms –80 dB typ fa = 0.983 kHz, fb = 1.05 kHz, fSAMPLE = 50 kHz Third Order Terms –80 dB typ fa = 0.983 kHz, fb = 1.05 kHz, fSAMPLE = 50 kHz DC ACCURACY Resolution 12 Bits All DC ACCURACY Specifications Apply for the Two Analog Input Ranges Integral Nonlinearity ±2 LSB max Differential Nonlinearity ±1 LSB max Guaranteed Monotonic Full-Scale Error ±20 LSB max Bipolar Zero Error ±12 LSB max Unipolar Offset Error ±3 LSB max ANALOG INPUT Input Voltage Ranges 0 to VREF Volts See Figure 4 ±V REF Volts See Figure 5 Input Resistance 10 M Ω min 0 to VREF Range 5/12 k Ω min/max 8 k Ω typical: ±V REF Range REFERENCE INPUT VREF (For Specified Performance) VDD V IREF 1.2 mA max LOGIC INPUTS CONVST , RD, CS, CLKIN Input High Voltage, VINH 2.1 V min Input Low Voltage, VINL 0.6 V max Input Current, IIN ±10 µA max VIN = 0 V or VDD Input Capacitance, C IN 4 10 pF max MODE INPUT Input High Voltage, VINH VDD –0.2 V Input Low Voltage, VINL 0.2 V Input Current, IIN ±100 µA max VIN = 0 V or VDD Input Capacitance, C IN 4 10 pF max LOGIC OUTPUTS DB11–DB0, BUSY Output High Voltage, VOH 2.4 V min ISOURCE = 200 µA Output Low Voltage, VOL 0.4 V max ISINK = 0.8 mA DB11–DB0 Floating-State Leakage Current ±10 µA max Floating-State Output Capacitance 4 10 pF max CONVERSION Conversion Time 15 µs max fCLKIN = 2 MHz Track/Hold Acquisition Time 5 µs max POWER REQUIREMENTS VDD +3.3 V nom +3 V to +3.6 V for Specified Performance IDD Normal Power Mode @ +25 °C 3 mA max Typically 2 mA; MODE = VDD TMIN to TMAX 4 mA max Typically 2.5 mA; MODE = VDD Power Save Mode @ +25 °C 400 µA max Logic Inputs @ 0 V or VDD; MODE = 0 V; Typically 250 µA TMIN to TMAX 800 µA max Logic Inputs @ 0 V or VDD; MODE = 0 V; Typically 300 µA Power Dissipation Normal Power Mode @ +25 °C 11 mW max VDD = 3.6 V: Typically 8 mW; MODE = VDD TMIN to TMAX 15 mW max VDD = 3.6 V: Typically 9 mW; MODE = VDD Power Save Mode @ +25 °C 1.5 mW max VDD = 3.6 V: Typically 1 mW; MODE = 0 V TMIN to TMAX 3 mW max VDD = 3.6 V: Typically 1 mW; MODE = 0 V NOTES 1Temperature range is as follows: B Versions, –40 °C to +85°C. 2V IN = 0 to VREF. 3SNR calculation includes distortion and noise components. 4Sample tested @ +25 °C to ensure compliance. Specifications subject to change without notice. |
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