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AD7760BSV Arkusz danych(PDF) 3 Page - Analog Devices |
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AD7760BSV Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 22 page Preliminary Technical Data AD7760 Rev. PrN | Page 3 of 22 AD7760—SPECIFICATIONS Table 1. VDD1 = 2.5 V, VDD2 = 5 V, VREF = 4.096 V, TA = +25°C, Full Power Mode, unless otherwise noted Parameter Test Conditions/Comments Specifcation Unit DYNAMIC PERFORMANCE Decimate by 256 MCLK = 24.576MHz, ODR = 48kHz, FIN = 1kHz Sine Wave Signal to Noise Ratio (SNR) 1 118 dB typ Spurious Free Dynamic Range (SFDR) 1 Non-harmonic 118 dBFS typ Total Harmonic Distortion (THD) 1 Input Amplitude = -6dB -100 dB typ Intermodulation Distortion (IMD) 1 -100 dB typ Decimate by 16 MCLK = 40MHz, ODR = 1.25MHz, FIN =100kHz Sine Wave Signal to Noise Ratio (SNR) 1 103 dB typ Spurious Free Dynamic Range (SFDR) 1 Non-harmonic 103 dBFS typ Total Harmonic Distortion (THD) 1 Input Amplitude = -6dB -100 dB typ Intermodulation Distortion (IMD) 1 -100 dB typ Decimate by 8 MCLK = 40MHz, ODR = 2.5MHz, FIN = 100kHz Sine Wave Signal to Noise Ratio (SNR) 1 100 dB typ Spurious Free Dynamic Range (SFDR) 1 Non-harmonic 100 dBFS typ Total Harmonic Distortion (THD) 1 Input Amplitude = -6dB -100 dB typ Intermodulation Distortion (IMD) 1 FIN = 100kHz Sine Wave -100 dB typ Intermodulation Distortion (IMD) 1 FIN = 1MHz Sine Wave -100 dB typ DC ACCURACY Resolution 20 Bits Integral Nonlinearity1 At 18 bits 1 LSB typ Differential Nonlinearity1 Guaranteed monotonic to 20 bits 1 LSB typ Offset Error1 0.03 % typ Gain Error1 5 LSB typ Offset Error Drift 0.0006 % /°C Gain Error Drift 0.1 LSB /°C DIGITAL FILTER RESPONSE Decimate by 8 Group Delay MCLK = 40MHz 12 µS typ Decimate by 16 Group Delay MCLK = 40MHz 24 µS typ Decimate by 128 Group Delay MCLK = 24.576MHz 480 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 DC Leakage Current ±2 µA max Input Capacitance With internal buffer 5 pF typ With external buffer 55 pF typ REFERENCE INPUT/OUTPUT VREF Input Voltage VDD3 = 3.3V +2.5 Volts VDD3 = 5V +4.096 Volts VREF Input DC Leakage Current ±1 µA max VREF Input Capacitance 5 pF max POWER REQUIREMENTS AVDD1 (Modulator Supply) ±5% +2.5 Volts AVDD2 (General Supply) ±5% +5 Volts AVDD3 (Diff-Amp Supply) +3.0/+5.5 V min/max AVDD4 (Ref Buffer Supply) +3.15/+5.25 V min/max DVDD ±5% +2.5 Volts VDRIVE +1.65/+2.7 V min/max |
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