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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD7485 датащи(PDF) 2 Page - AMIC Technology |
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AD7485 датащи(HTML) 2 Page - AMIC Technology |
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2 / 16 page  REV. 0 –2– AD7485–SPECIFICATIONS1 Parameter Specification Unit Test Conditions/Comments DYNAMIC PERFORMANCE 2, 3 fIN = 500 kHz Sine Wave Signal to Noise + Distortion (SINAD) 4 76.5 dB min 78 dB typ 77 dB typ Internal Reference Total Harmonic Distortion (THD) 4 –90 dB max –95 dB typ –92 dB typ Internal Reference Peak Harmonic or Spurious Noise (SFDR) 4 –88 dB max Intermodulation Distortion (IMD) 4 Second-Order Terms –96 dB typ fIN1 = 95.053 kHz, fIN2 = 105.329 kHz Third-Order Terms –94 dB typ Aperture Delay 10 ns typ Full Power Bandwidth 40 MHz typ @ 3 dB 3.5 MHz typ @ 0.1 dB DC ACCURACY Resolution 14 Bits Integral Nonlinearity 4 ±1LSB max ±0.5 LSB typ Differential Nonlinearity 4 ±0.75 LSB max Guaranteed No Missed Codes to 14 Bits ±0.25 LSB typ Offset Error 4 ±6LSB max 0.036 %FSR max Gain Error 4 ±6LSB max 0.036 %FSR max ANALOG INPUT Input Voltage 0 V min 2.5 V max DC Leakage Current ±1 µA max Input Capacitance 5 35 pF typ REFERENCE INPUT/OUTPUT VREFIN Input Voltage 2.5 V ±1% for Specified Performance VREFIN Input DC Leakage Current ±1 µA max VREFIN Input Capacitance 5 25 pF typ VREFIN Input Current 6 220 A typ External Reference VREFOUT Output Voltage 2.5 V typ VREFOUT Error @ 25 °C ±50 mV typ VREFOUT Error TMIN to TMAX ±100 mV max VREFOUT Output Impedance 1 Ω typ LOGIC INPUTS Input High Voltage, VINH VDRIVE –1V min Input Low Voltage, VINL 0.4 V max Input Current, IIN ±1 µA max Input Capacitance, CIN 5 10 pF typ LOGIC OUTPUTS Output High Voltage, VOH 7 0.7 × VDRIVE V min Output Low Voltage, VOL 7 0.3 × VDRIVE V max Floating-State Leakage Current ±10 µA max Floating-State Output Capacitance 5 10 pF max Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 24 MCLKs Track/Hold Acquisition Time 100 ns max Sine Wave Input 70 ns max Full-Scale Step Input Throughput Rate 1 MSPS max (VDD = 5 V 5%, AGND = DGND = 0 V, VREF = External, fSAMPLE = 1 MSPS; all specifica- tions TMIN to TMAX and valid for VDRIVE = 2.7 V to 5.25 V, unless otherwise noted.) |
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