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AD7765 Datasheet(PDF) 3 Page - Analog Devices |
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AD7765 Datasheet(HTML) 3 Page - Analog Devices |
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3 / 32 page  AD7765 Rev. 0 | Page 3 of 32 SPECIFICATIONS AVDD1 = DVDD = VDRIVE = 2.5 V, AVDD2 = AVDD3 = AVDD4 = 5 V, VREF+ = 4.096 V, MCLK amplitude = 5 V, TA = +25°C, normal power mode, using the on-chip amplifier with components as shown in row one of Table 7, unless otherwise noted.1 Table 2 Parameter Test Conditions/Comments Specification Unit DYNAMIC PERFORMANCE Decimate 256× Normal Power Mode MCLK = 40 MHz, ODR = 78.125 kHz, fIN = 1 kHz sine wave Dynamic Range Modulator inputs shorted 115 dB typ 110 dB min Differential amplifier inputs shorted 113.4 dB typ Signal-to-Noise Ratio (SNR)2 Input amplitude = −0.5 dB 109 dB typ 106 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 Input amplitude = −60 dB −71 dB typ Low Power Mode MCLK = 40 MHz, ODR = 78.125 kHz, fIN = 1 kHz sine wave Dynamic Range Modulator inputs shorted 113 dB typ 110 dB min Differential amplifier inputs shorted 112 dB typ Signal-to-Noise Ratio (SNR)2 Input amplitude = −0.5 dB 109 dB typ 106 dB min Total Harmonic Distortion (THD) Input amplitude = −0.5 dB −105 dB typ Input amplitude = −6 dB −111 dB typ Input amplitude = −6 dB −100 dB max Input amplitude = −60 dB −76 dB typ Decimate 128× Normal Power Mode MCLK = 40 MHz, ODR = 156.25 kHz, fIN = 1 kHz sine wave Dynamic Range Modulator inputs shorted 112 dB typ 108 dB min Differential amplifier inputs shorted 110.4 dB typ 107 dB typ Signal to Noise Ratio (SNR)2 105 dB min Spurious-Free Dynamic Range (SFDR) Nonharmonic 130 dBFS typ Input amplitude = −0.5 dB −105 dB typ Total Harmonic Distortion (THD) Input amplitude = −6 dB −103 dB typ Input amplitude = −6 dB, fIN A = 50.3 kHz, fIN B = 47.3 kHz Second-order terms −117 dB typ Intermodulation Distortion (IMD) Third-order terms −108 dB typ Low Power Mode MCLK = 40 MHz, ODR = 156.25 kHz, fIN = 1 kHz sine wave 110 dB typ Modulator inputs shorted 109 dB min Dynamic Range Differential amplifier inputs shorted 109 dB typ 107 dB typ Signal-to-Noise Ratio (SNR)2 Input amplitude = −0.5 dB 105 dB min Total Harmonic Distortion (THD) Input amplitude = −0.5 dB −105 dB typ Input amplitude = −6 dB −111 dB typ Input amplitude = −6 dB −100 dB max Intermodulation Distortion (IMD) Input amplitude = −6 dB, fIN A= 50.3 kHz, fIN B = 47.3 kHz Second-order terms −134 dB typ Third-order terms −110 dB typ |
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