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AD7928BRUZ-REEL Datasheet(PDF) 3 Page - Analog Devices |
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AD7928BRUZ-REEL Datasheet(HTML) 3 Page - Analog Devices |
3 / 32 page AD7908/AD7918/AD7928 Rev. D | Page 3 of 32 SPECIFICATIONS AD7908 SPECIFICATIONS AVDD = VDRIVE = 2.7 V to 5.25 V, REFIN = 2.5 V, fSCLK = 20 MHz, TA = TMIN to TMAX, unless otherwise noted. Table 1. Parameter B Version1 Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 50 kHz sine wave, fSCLK = 20 MHz Signal-to-(Noise + Distortion) (SINAD)2 49 dB min B models 48.5 dB min W models Signal-to-Noise Ratio (SNR)2 49 dB min B models 48.5 dB min W models Total Harmonic Distortion (THD)2 −66 dB max Peak Harmonic or Spurious Noise (SFDR)2 −64 dB max Intermodulation Distortion (IMD)2 fa = 40.1 kHz, fb = 41.5 kHz Second-Order Terms −90 dB typ Third-Order Terms −90 dB typ Aperture Delay 10 ns typ Aperture Jitter 50 ps typ Channel-to-Channel Isolation2 −85 dB typ fIN = 400 kHz Full Power Bandwidth 8.2 MHz typ @ 3 dB 1.6 MHz typ @ 0.1 dB DC ACCURACY2 Resolution 8 Bits Integral Nonlinearity ±0.2 LSB max Differential Nonlinearity ±0.2 LSB max Guaranteed no missed codes to 8 bits 0 V to REFIN Input Range Straight binary output coding Offset Error ±0.5 LSB max Offset Error Match ±0.05 LSB max Gain Error ±0.2 LSB max Gain Error Match ±0.05 LSB max 0 V to 2 × REFIN Input Range −REFIN to +REFIN biased about REFIN with twos complement output coding Positive Gain Error ±0.2 LSB max Positive Gain Error Match ±0.05 LSB max Zero Code Error ±0.5 LSB max Zero Code Error Match ±0.1 LSB max Negative Gain Error ±0.2 LSB max Negative Gain Error Match ±0.05 LSB max ANALOG INPUT Input Voltage Ranges 0 to REFIN V RANGE bit set to 1 0 to 2 × REFIN V RANGE bit set to 0, AVDD/VDRIVE = 4.75 V to 5.25 V DC Leakage Current ±1 μA max Input Capacitance 20 pF typ REFERENCE INPUT REFIN Input Voltage 2.5 V ±1% specified performance DC Leakage Current ±1 μA max REFIN Input Impedance 36 kΩ typ fSAMPLE = 1 MSPS LOGIC INPUTS Input High Voltage, VINH 0.7 × VDRIVE V min Input Low Voltage, VINL 0.3 × VDRIVE V max Input Current, IIN ±1 μA max Typically 10 nA, VIN = 0 V or VDRIVE Input Capacitance, CIN3 10 pF max |
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