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AD7766 Datasheet(PDF) 4 Page - Analog Devices |
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AD7766 Datasheet(HTML) 4 Page - Analog Devices |
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4 / 25 page  AD7766 Rev. C | Page 3 of 24 SPECIFICATIONS AVDD = DVDD = 2.5 V ± 5%, VDRIVE = 1.8 V to 3.6 V, VREF+ = 5 V, MCLK = 1 MHz, common-mode input = VREF+/2, TA = −40°C to +105°C, unless otherwise noted. Table 2. Parameter Test Conditions/Comments Min Typ Max Unit OUTPUT DATA RATE (ODR) AD7766 Decimate by 8 128 kHz AD7766-1 Decimate by 16 64 kHz AD7766-2 Decimate by 32 32 kHz ANALOG INPUT1 Differential Input Voltage VIN+ − VIN− ±VREF+ V p-p Absolute Input Voltage VIN+ −0.1 +VREF+ + 0.1 V VIN− −0.1 +VREF+ + 0.1 V Common-Mode Input Voltage VREF+/2 − 5% VREF+/2 VREF+/2 + 5% V Input Capacitance 22 pF DYNAMIC PERFORMANCE AD7766 Decimate by 8, ODR = 128 kHz Dynamic Range2 Shorted inputs 108 109.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 107 108.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 49.7 kHz, Tone B = 50.3 kHz Second-Order Terms −133 dB Third-Order Terms −109 dB AD7766-1 Decimate by 16, ODR = 64 kHz Dynamic Range2 Shorted inputs 111 112.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 110 111.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 24.7 kHz, Tone B = 25.3 kHz dB Second-Order Terms −133 dB Third-Order Terms −108 dB AD7766-2 Decimate by 32, ODR = 32 kHz Dynamic Range2 Shorted inputs 114 115.5 dB Signal-to-Noise Ratio (SNR)2 Full-scale input amplitude, 1 kHz tone 112 113.5 dB Spurious-Free Dynamic Range (SFDR)2 Full-scale input amplitude, 1 kHz tone −128 −116 dB Total Harmonic Distortion (THD)2 Full-scale input amplitude, 1 kHz tone −112 −103 dB Intermodulation Distortion (IMD)2 Tone A = 11.7 kHz, Tone B = 12.3 kHz dB Second-Order Terms −137 dB Third-Order Terms −108 dB DC ACCURACY1 For all devices Resolution No missing codes 24 Bits Differential Nonlinearity2 Guaranteed monotonic to 24 bits Integral Nonlinearity2 16-bit linearity ±6 ±15 ppm Zero Error2 20 μV Gain Error2 0.0075 0.075 % FS Zero Error Drift2 15 nV/°C Gain Error Drift2 0.4 ppm/°C Common-Mode Rejection Ratio2 50 Hz tone −110 dB |
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