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AD7770ACPZ 数据表(PDF) 6 Page - Analog Devices |
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AD7770ACPZ 数据表(HTML) 6 Page - Analog Devices |
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6 / 94 page  AD7770 Data Sheet Rev. A | Page 6 of 94 Parameter Test Conditions/Comments Min Typ Max Unit TEMPERATURE RANGE Specified Performance TMIN to TMAX −40 +105 °C Functional2 TMIN to TMAX −40 +125 °C TEMPERATURE SENSOR Accuracy ±2 °C DIGITAL FILTER RESPONSE (SINC3) Group Delay See the SRC Group Delay section Settling Time See the Settling Time section Pass Band −0.1 dB See the SRC Bandwidth section −3 dB See the SRC Bandwidth section Decimation Rate 64 4095.99 CLOCK SOURCE Frequency High resolution mode 0.655 8.192 MHz Low power mode 1.3 4.096 MHz Duty Cycle 45:55 50:50 55:45 % Σ-Δ ADC Speed and Performance Resolution 24 Bits ODR High resolution mode 32 kSPS Low power mode 8 kSPS No Missing Codes Up to 24 kSPS 24 Bits AC Accuracy Dynamic Range Shorted inputs, PGAGAIN = 1 32 kSPS High resolution mode 103 dB 8 kSPS High resolution mode 113 dB Low power mode 103 dB 2 kSPS Low power mode 113 dB THD −0.5 dBFS, high resolution mode −109 dB −0.5 dBFS, low power mode −105 dB Signal-to-Noise-and-Distortion Ratio (SINAD) fIN = 60 Hz 106 dB SFDR High resolution mode, 16 kSPS, PGAGAIN = 1 132 dB Intermodulation Distortion (IMD) fA = 50 Hz, fB = 51 Hz, high resolution mode −125 dB fA = 50 Hz, fB = 51 Hz, low power mode −105 dB DC Power Supply Rejection AVDD1x = 3.3 V −90 dB DC Common-Mode Rejection Ratio 80 dB Crosstalk −120 dB DC ACCURACY INL High Resolution Mode Endpoint method, PGAGAIN = 1 ±8 ±15 ppm of FSR Other PGA gains ±4 ±15 ppm of FSR Low Power Mode Endpoint method, PGAGAIN = 1 ±9 ±17 ppm of FSR Other PGA gains ±6 ±15 ppm of FSR Offset Error ±15 ±90 µV Offset Error Drift ±0.25 µV/°C Over time −2 µV/ 1000 hours |
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