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AD7876BR-REEL7 Folha de dados(PDF) 3 Page - Analog Devices |
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AD7876BR-REEL7 Folha de dados(HTML) 3 Page - Analog Devices |
3 / 28 page AD7870/AD7875/AD7876 Rev. C | Page 3 of 28 SPECIFICATIONS VDD = +5 V ± 5%, VSS = −5 V ± 5%, AGND = DGND = 0 V, fCLK = 2.5 MHz external, unless otherwise stated. All Specifications Tmin to Tmax, unless otherwise noted. AD7870 SPECIFICATIONS Table 1. ADN78701 Parameter J, A K, B L, C T Units Test Conditions/Comments DYNAMIC PERFORMANCE2 Signal-to-Noise Ratio3 (SNR) @ +25°C 70 70 72 69 dB min VIN = 10 kHz sine wave, fSAMPLE = 100 kHz TMIN to TMAX 70 70 71 69 dB min Typically 71.5 dB for 0 < VIN < 50 kHz Total Harmonic Distortion (THD) −80 −80 −80 −78 dB max VIN = 10 kHz sine wave, fSAMPLE = 100 kHz Typically −86 dB for 0 < VIN < 50 kHz Peak Harmonic or Spurious Noise −80 −80 −80 −78 dB max VIN = 10 kHz, fSAMPLE = 100 kHz Typically −86 dB for 0 < VIN < 50 kHz Intermodulation Distortion (IMD) Second Order Terms −80 −80 −80 −78 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Third Order Terms −80 −80 −80 −78 dB max fa = 9 kHz, fb = 9.5 kHz, fSAMPLE = 50 kHz Track-and-Hold Acquisition Time 2 2 2 2 μs max DC ACCURACY Resolution 12 12 12 12 Bits Minimum Resolution for which No Missing Codes are Guaranteed 12 12 12 12 Bits Integral Nonlinearity ±1/2 ±1/2 ±1/4 ±1/2 LSB typ Integral Nonlinearity ±1 ±1/2 ±1 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Bipolar Zero Error ±5 ±5 ±5 ±5 LSB max Positive Full-Scale Error4 ±5 ±5 ±5 ±5 LSB max Negative Full-Scale Error4 ±5 ±5 ±5 ±5 LSB max ANALOG INPUT Input Voltage Range ±3 ±3 ±3 ±3 V Input Current ±500 ±500 ±500 ±500 μA max REFERENCE OUTPUT REF OUT @ +25°C 2.99 2.99 2.99 2.99 V min 3.01 3.01 3.01 3.01 V max REF OUT Tempco ±60 ±60 ±35 ±35 ppm/°C max Reference Load Sensitivity (ΔREF OUT/ΔI) ±1 ±1 ±1 ±1 mV max Reference load current change (0 μA to 500 μA). Reference load should not be changed during conversion. LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 0.8 0.8 V max VDD = 5 V ± 5% Input Current, IIN ±10 ±10 ±10 ±10 μA max VIN = 0 V to VDD Input Current (12/8/CLK Input Only) ±10 ±10 ±10 ±10 μA max VIN = VSS to VDD Input Capacitance, CIN5 10 10 10 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 4.0 4.0 4.0 4.0 V min ISOURCE = 40 μA Output Low Voltage, VOL 0.4 0.4 0.4 0.4 V max ISINK = 1.6 mA DB11 to DB0 Floating-State Leakage Current ±10 ±10 ±10 ±10 μA max Floating-State Output Capacitance5 15 15 15 15 pF max |
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