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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD974 датащи(PDF) 2 Page - Analog Devices |
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AD974 датащи(HTML) 2 Page - Analog Devices |
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2 / 20 page  REV. A –2– AD974–SPECIFICATIONS A Grade B Grade Parameter Conditions Min Typ Max Min Typ Max Units RESOLUTION 16 16 Bits ANALOG INPUT Voltage Range ±10 V, 0 V to +4 V, 0 V to +5 V (See Table I) Impedance Channel On or Off (See Table I) Sampling Capacitance 40 40 pF THROUGHPUT SPEED Complete Cycle (Acquire and Convert) 5 5 µs Throughput Rate 200 200 kHz DC ACCURACY Integral Linearity Error ±3 ±2.0 LSB1 Differential Linearity Error –2 +3 –1 +1.75 LSB No Missing Codes 15 16 Bits Transition Noise2 1.0 1.0 LSB Full-Scale Error3 Internal Reference ±0.5 ±0.25 % Full-Scale Error Drift Internal Reference ±7 ±7 ppm/ °C Full-Scale Error Ext. REF = +2.5 V ±0.5 ±0.25 % Full-Scale Error Drift Ext. REF = +2.5 V ±2 ±2 ppm/ °C Bipolar Zero Error Bipolar Range ±10 ±10 mV Bipolar Zero Error Drift Bipolar Range ±2 ±2 ppm/ °C Unipolar Zero Error Unipolar Ranges ±10 ±10 mV Unipolar Zero Error Drift Unipolar Ranges ±2 ±2 ppm/ °C Channel-to-Channel Matching ±0.1 ±0.05 % FSR Recovery to Rated Accuracy After Power-Down4 2.2 µF to CAP 1 1 ms Power Supply Sensitivity VANA = VDIG = VD VD = 5 V ± 5% ±8 ±8 LSB AC ACCURACY Spurious Free Dynamic Range fIN = 20 kHz 90 96 dB5 Total Harmonic Distortion fIN = 20 kHz –90 –96 dB Signal-to-(Noise+Distortion) fIN = 20 kHz 83 85 dB –60 dB Input 27 28 dB Signal-to-Noise fIN = 20 kHz 83 85 dB Channel-to-Channel Isolation fIN = 20 kHz –110 –100 –110 –100 dB Full Power Bandwidth6 1 1 MHz –3 dB Input Bandwidth 2.7 2.7 MHz SAMPLING DYNAMICS Aperture Delay 40 40 ns Transient Response Full-Scale Step 1 1 µs Overvoltage Recovery7 150 150 ns REFERENCE Internal Reference Voltage 2.48 2.5 2.52 2.48 2.5 2.52 V Internal Reference Source Current 1 1 µA External Reference Voltage Range for Specified Linearity 2.3 2.5 2.7 2.3 2.5 2.7 V External Reference Current Drain Ext. REF = +2.5 V 100 100 µA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 –0.3 +0.8 V VIH +2.0 VDIG + 0.3 +2.0 VDIG + 0.3 V IIL ±10 ±10 µA IIH ±10 ±10 µA (–40 C to +85 C, fS = 200 kHz, VDIG = VANA = +5 V, unless otherwise noted) |
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