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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD7910 датащи(PDF) 3 Page - Analog Devices |
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AD7910 датащи(HTML) 3 Page - Analog Devices |
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3 / 20 page  REV. B AD7910/AD7920 –3– AD7920–SPECIFICATIONS1 (VDD = 2.35 V to 5.25 V, fSCLK = 5 MHz, fSAMPLE = 250 kSPS, TA = TMIN to TMAX, unless otherwise noted.) Parameter A Grade 1, 2 B Grade 1, 2 Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 100 kHz Sine Wave Signal-to-Noise + Distortion (SINAD) 3 70 70 dB min VDD = 2.35 V to 3.6 V, TA = 25 ∞C 69 69 dB min VDD = 2.4 V to 3.6 V 71.5 71.5 dB typ VDD = 2.35 V to 3.6 V 69 69 dB min VDD = 4.75 V to 5.25 V, TA = 25 ∞C 68 68 dB min VDD = 4.75 V to 5.25 V Signal-to-Noise Ratio (SNR) 3 71 71 dB min VDD = 2.35 V to 3.6 V, TA = 25 ∞C 70 70 dB min VDD = 2.4 V to 3.6 V 70 70 dB min VDD = 4.75 V to 5.25 V, TA = 25 ∞C 69 69 dB min VDD = 4.75 V to 5.25 V Total Harmonic Distortion (THD) 3 –80 –80 dB typ Peak Harmonic or Spurious Noise (SFDR) 3 –82 –82 dB typ Intermodulation Distortion (IMD) 3 Second-Order Terms –84 –84 dB typ fa = 100.73 kHz, fb = 90.72 kHz Third-Order Terms –84 –84 dB typ fa = 100.73 kHz, fb = 90.72 kHz Aperture Delay 10 10 ns typ Aperture Jitter 30 30 ps typ Full Power Bandwidth 13.5 13.5 MHz typ @ 3 dB 22 MHz typ @ 0.1 dB DC ACCURACY B Grade 4 Resolution 12 12 Bits Integral Nonlinearity 3 ±1.5 LSB max ±0.75 LSB typ Differential Nonlinearity –0.9/+1.5 LSB max Guaranteed No Missed Codes to 12 Bits ±0.75 LSB typ Offset Error 3, 5 ±1.5 LSB max ±1.5 ±0.2 LSB typ Gain Error 3, 5 ±1.5 LSB max ±1.5 ±0.5 LSB typ Total Unadjusted Error (TUE) 3,5 ±2 LSB max ANALOG INPUT Input Voltage Ranges 0 to VDD 0 to VDD V DC Leakage Current ±0.5 ±0.5 mA max Input Capacitance 20 20 pF typ Track-and-Hold in Track, 6 pF Typ when in Hold LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min 1.8 1.8 V min VDD = 2.35 V Input Low Voltage, VINL 0.8 0.8 V max VDD = 3.6 V to 5.25 V 0.4 0.4 V max VDD = 2.35 V to 3.6 V Input Current, IIN, SCLK Pin ±0.5 ±0.5 mA max Typically 10 nA, VIN = 0 V or VDD Input Current, IIN, CS Pin ±10 ±10 nA typ Input Capacitance, CIN 6 5 5 pF max LOGIC OUTPUTS Output High Voltage, VOH VDD – 0.2 VDD – 0.2 V min ISOURCE = 200 mA, VDD = 2.35 V to 5.25 V Output Low Voltage, VOL 0.4 0.4 V max ISINK = 200 mA Floating-State Leakage Current ±1 ±1 mA max Floating-State Output Capacitance 6 55pF max Output Coding Straight (Natural) Binary CONVERSION RATE Conversion Time 3.2 3.2 ms max 16 SCLK Cycles with SCLK at 5 MHz Track-and-Hold Acquisition Time 3 250 250 ns max Throughput Rate 250 250 kSPS max See Serial Interface Section |
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