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AD7870A Folha de dados(PDF) 2 Page - Analog Devices |
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AD7870A Folha de dados(HTML) 2 Page - Analog Devices |
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2 / 12 page  AD7870A–SPECIFICATIONS –2– REV. 0 (VDD = +5 V 5%, VSS = –5 V 5%, AGND = DGND = 0 V, fCLK is internal, unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.) Parameter J 1 Units Test Conditions/Comments DYNAMIC PERFORMANCE 2 Signal-to-Noise Ratio 3 (SNR) @ +25 °C 70 dB min VIN = 10 kHz Sine Wave, f SAMPLE = 100 kHz TMIN to TMAX 70 dB min Typically 71.5 dB for 0 < VIN ≤ 50 kHz Total Harmonic Distortion (THD) –80 dB max VIN = 10 kHz Sine Wave, fSAMPLE = 100 kHz Typically –86 dB for 0 < VIN < 50 kHz Peak Harmonic or Spurious Noise –80 dB max VIN = 10 kHz, fSAMPLE = 100 kHz Typically –86 dB for 0 < VIN < 50 kHz Intermodulation Distortion (IMD) Second Order Terms –80 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Third Order Terms –80 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Track/Hold Acquisition Time 2 µs max DC ACCURACY Resolution 12 Bits Minimum Resolution for Which No Missing Codes Are Guaranteed 12 Bits Integral Nonlinearity ±1/2 LSB typ Bipolar Zero Error ±5 LSB max Positive Full-Scale Error 4 ±5 LSB max Negative Full-Scale Error 4 ±5 LSB max ANALOG INPUT Input Voltage Range ±3 Volts Input Current ±500 µA max REFERENCE OUTPUT REF OUT @ +25 °C 2.99 V min 3.01 V max REF OUT Tempco ±60 ppm/ °C max Reference Load Sensitivity ( ∆REF OUT/∆I) ±1 mV max Reference Load Current Change (0 µA–500 µA) Reference Load Should Not Be Change During Conversion LOGIC INPUTS Input High Voltage, VINH 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 V max VDD = 5 V ± 5% Input Current, IIN ±10 µA max VIN = 0 V to VDD Input Current (12/ 8 CLK Input Only) ±10 µA max VIN = VSS to VDD Input Capacitance, CIN 5 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 V min ISOURCE = 40 µA Output Low Voltage, VOL 0.4 V max ISINK = 1.6 mA DB11–DB0 Floating State Leakage Current ±10 µA max Floating-State Output Capacitance5 15 pF max CONVERSION TIME External Clock (fCLK = 2.5 MHz) 7.6/8 µs min/µs max Internal Clock 8/10 µs min/µs max POWER REQUIREMENTS VDD +5 V V nom ±5% for Specified Performance VSS –5 V non ±5% for Specified Performance IDD 13 mA max Typically 8 mA ISS 6 mA max Typically 4 mA Power Dissipation 95 mW max Typically 60 mW NOTES 1Temperature range is as follow: J Version: 0 °C to +70°C. 2V IN (pk-pk) = ±3 V. 3SNR calculation includes distortion and noise components. 4Measured with respect to internal reference and includes bipolar offset error. 5Sample tested @ +25 °C to ensure compliance. Specifications subject to change without notice. |
Nº de peça semelhante - AD7870A_15 |
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Descrição semelhante - AD7870A_15 |
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