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AD7764 Datasheet(PDF) 3 Page - Analog Devices |
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AD7764 Datasheet(HTML) 3 Page - Analog Devices |
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3 / 21 page  Preliminary Technical Data AD7764 Rev. PrC | Page 3 of 21 SPECIFICATIONS VDD1 = 2.5 V, VDD2 = 5 V, VREF = 4.096 V, TA = +25°C, Using the on-chip amplifier with components as shown in Table 7, unless otherwise noted.1 Table 1. Parameter Test Conditions/Comments Specifcation Unit DYNAMIC PERFORMANCE Decimate by 256 MCLK = 40MHz, ODR = 78.125kHz, FIN = 1kHz Sine Wave TBD dB min Dynamic Range Modulator inputs shorted 115 dB typ Signal to Noise Ratio (SNR)2 112 dB typ Spurious Free Dynamic Range (SFDR) TBD dBFS typ Input Amplitude = -0.5dB -105 dB typ TBD dB max Input Amplitude = -6dB dB typ Total Harmonic Distortion (THD) Input Amplitude = -60dB dB typ Decimate by 128 MCLK = 40MHz, ODR = 156.25kHz, FIN =100kHz Sine Wave TBD dB min Dynamic Range Modulator inputs shorted 112 dB typ Signal to Noise Ratio (SNR)2 109 dB typ Spurious Free Dynamic Range (SFDR) Non-harmonic dBFS typ Input Amplitude = -0.5dB dB typ TBD dB max Total Harmonic Distortion (THD) Input Amplitude = -6dB dB typ Intermodulation Distortion (IMD) Input Amplitude = -6dB, FINA= TBD KHz, FINB=TBD KHz TBD dB typ Decimate by 64 MCLK = 40MHz, ODR = 312.5kHz, FIN = 100kHz Sine Wave 109 dB typ Dynamic Range Modulator inputs shorted dB min Signal to Noise Ratio (SNR)2 106 dB typ Spurious Free Dynamic Range (SFDR) Non-harmonic dBFS typ Input Amplitude = -0.5dB dB typ TBD dB max Total Harmonic Distortion (THD) Input Amplitude = -6dB TBD dB typ Intermodulation Distortion (IMD) Input Amplitude = -6dB, FINA= TBD KHz, FINB=TBD KHz DC ACCURACY Resolution Guaranteed monotonic to 24 bits 24 Bits Integral Nonlinearity 0.00076 LSB typ 0.014 % typ Zero Error 0.02 % max Gain Error 0.018 % typ Zero Error Drift 0.00001 %FS/°C typ Gain Error Drift 0.0002 %FS/°C typ DIGITAL FILTER RESPONSE Decimate by 64 Group Delay MCLK = 40MHz 89 µS typ Decimate by 128 Group Delay MCLK = 40MHz 177 µS typ Decimate by 256 Group Delay MCLK = 40MHz 358 µS typ ANALOG INPUT Differential Input Voltage Vin(+) – Vin(-), VREF = 2.5V ±2 V pk-pk Vin(+) – Vin(-), VREF = 4.096V ±3.25 V pk-pk Input Capacitance At internal buffer inputs 5 pF typ |
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