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AD7924BRUZ-REEL7 Datasheet(PDF) 7 Page - Analog Devices |
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AD7924BRUZ-REEL7 Datasheet(HTML) 7 Page - Analog Devices |
7 / 32 page Data Sheet AD7904/AD7914/AD7924 Rev. C | Page 7 of 32 AD7924 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 3. Parameter B Version1 Unit Test Conditions/Comments DYNAMIC PERFORMANCE fIN = 50 kHz sine wave, fSCLK = 20 MHz Signal to (Noise + Distortion) (SINAD)2 70 dB min @ 5 V, B models 69.5 dB min @ 5 V, W models 69 dB min @ 3 V, typically 69.5 dB Signal-to-Noise Ratio (SNR) 70 dB min B models 69.5 dB min W models Total Harmonic Distortion (THD)2 −77 dB max @ 5 V, typically −84 dB −73 dB max @ 3 V, typically −77 dB Peak Harmonic or Spurious Noise (SFDR) −78 dB max @ 5 V, typically −86 dB Intermodulation Distortion (IMD) 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 ACCURACY Resolution 12 Bits Integral Nonlinearity (INL)2 ±1 LSB max Differential Nonlinearity (DNL)2 −0.9/+1.5 LSB max Guaranteed no missed codes to 12 bits 0 V to REFIN Input Range Straight binary output coding Offset Error2 ±8 LSB max Typically ±0.5 LSB Offset Error Match2 ±0.5 LSB max Gain Error2 ±1.5 LSB max Gain Error Match2 ±0.5 LSB max 0 V to 2 × REFIN Input Range −REFIN to +REFIN biased about REFIN with twos complement output coding Positive Gain Error2 ±1.5 LSB max Positive Gain Error Match2 ±0.5 LSB max Zero Code Error2 ±8 LSB max Typically ±0.8 LSB Zero Code Error Match2 ±0.5 LSB max Negative Gain Error2 ±1 LSB max Negative Gain Error Match2 ±0.5 LSB max ANALOG INPUT Input Voltage Range 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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