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AD7764 Datasheet(PDF) 5 Page - Analog Devices |
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AD7764 Datasheet(HTML) 5 Page - Analog Devices |
5 / 33 page AD7764 Rev. A | Page 4 of 32 Parameter Test Conditions/Comments Specification Unit Decimate 64× Normal Power Mode MCLK = 40 MHz, ODR = 312.5 kHz, f IN = 1 kHz sine wave Dynamic Range Modulator inputs shorted 109 dB typ 105 dB min Differential amplifier inputs shorted 107.3 dB typ Signal-to-Noise Ratio (SNR)2 104 dB typ 102.7 dB min Spurious-Free Dynamic Range (SFDR) Nonharmonic 130 dBFS typ Total Harmonic Distortion (THD) Input amplitude = −0.5 dB −105 dB typ Input amplitude = −6 dB −103 dB typ Intermodulation Distortion (IMD) Input amplitude = −6 dB, f IN A = 100.3 kHz, fIN B = 97.3 kHz Second-order terms −118 dB Third-order terms −108 dB Low Power Mode Dynamic Range Modulator inputs shorted 106 dB typ 105 dB min Differential amplifier inputs shorted 105.3 Signal-to-Noise Ratio (SNR)2 Input amplitude = −0.5 dB 103 dB typ 102 dB min Spurious-Free Dynamic Range (SFDR) Nonharmonic 110 dBFS typ Total Harmonic Distortion (THD) Input amplitude = −0.5 dB −105 dB typ Input amplitude = −6 dB −111 dB typ −100 dB max DC ACCURACY Resolution Guaranteed monotonic to 24 bits 24 Bits Integral Nonlinearity Normal power mode 0.0036 % typ Low power mode 0.0014 % typ Zero Error Normal power mode 0.006 % typ 0.03 % max Including on-chip amplifier 0.04 % typ Low power mode 0.002 % typ 0.024 % max Gain Error 0.018 % typ Including on-chip amplifier 0.04 % typ Zero Error Drift 0.00006 %FS/°C typ Gain Error Drift 0.00005 %FS/°C typ DIGITAL FILTER CHARACTERISTICS Pass-Band Ripple 0.1 dB typ Pass Band3 −1 dB frequency ODR × 0.4016 kHz −3 dB Bandwidth3 ODR × 0.4096 kHz Stop Band3 Beginning of stop band ODR × 0.5 kHz Stop-Band Attenuation Decimate 64× and decimate 128× modes −120 dB typ Decimate 256× −115 dB typ Group Delay Decimate 64× MCLK = 40 MHz 89 µs typ Decimate 128× MCLK = 40 MHz 177 µs typ Decimate 256× MCLK = 40 MHz 358 µs typ ANALOG INPUT Differential Input Voltage Modulator input pins: V IN+ − VIN−, VREF+ = 4.096 V ±3.2768 V p-p Input Capacitance At on-chip differential amplifier inputs 5 pF typ At modulator inputs 29 pF typ |
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Similar Description - AD7764_15 |
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