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ADUC844BS62-3 Arkusz danych(PDF) 2 Page - Analog Devices |
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ADUC844BS62-3 Arkusz danych(HTML) 2 Page - Analog Devices |
2 / 20 page ADuC844 SPECIFICATIONS 1 -2- REV. PrB PRELIMINARY TECHNICAL DATA (AVDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V, DVDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V, REFIN(+) = 2.5 V, REFIN(–) = AGND; AGND = DGND = 0 V; XTAL1/XTAL2 = 32.768 kHz Crystal; all specifications TMIN, to TMAX unless otherwise noted.). PARAMETER MIN TYP MAX UNITS CONDITION PRIMARY ADC Conversion Rate 5.35 19.79 105 Hz On Both Channels No Missing Codes 2 24 Bits 19.79Hz Update Rate Resolution 13.5 Bits Pk-Pk Range = ± 20mV, 20Hz Update Rate 18.5 Bits Pk-Pk Range = ± 2.56V, 20Hz Update Rate Output Noise See Tables X and XI in ADC Description Output Noise varies with selected Update Rates and Gain Range Integral Non Linearity ± 15 ppm of FSR 1 LSB16 Offset Error 3 ± 3 µV Offset Error Drift (vs. Temp) ± 10 nV/°C Full-Scale Error 4 ± 10 µV Gain Error Drift 5 (vs. Temp) ± 0.5 ppm/°C ADC Range Matching ± 2 µV AIN=18mV Power Supply Rejection 80 dBs AIN=1V, Range=± 2.56V 113 dBs AIN=7.8mV, Range=± 20mV Common Mode DC Rejection On AIN 95 dBs @DC, AIN=7.8mV, Range=± 20mV On AIN 113 dBs @DC, AIN=1V, Range=± 2.56V Common Mode 50/60Hz Rejection 20 Hz Update Rate On AIN 95 dBs 50/60Hz ± 1Hz, AIN=7.8mV, Range=± 20mV On AIN 90 dBs 50/60Hz ± 1Hz, AIN=1V, Range=± 2.56V Normal Mode 50/60 Hz Rejection On AIN 60 dBs 50/60Hz ± 1Hz, 20 Hz Update Rate PRIMARY ADC ANALOG INPUTS Differential Input Voltage Ranges 9,10 Bipolar Mode (ADC0CON.5 = 0) ± 1.024 x VREF/GAIN V VREF = REFIN(+) - REFIN(-) (or Int 1.25V Ref) GAIN = 1 to 128 Unipolar Mode (ADC0CON.5 = 1) 0 à 1.024 x REFIN/GAIN V VREF = REFIN(+) - REFIN(-) GAIN=1 to 128 Analog Input Current 2 ± 1 nA TMAX = 85°C ± 5 nA TMAX = 125°C Analog Input Current Drift ± 5 pA/°C TMAX = 85°C ± 15 pA/°C TMAX = 125°C Absolute AIN Voltage Limits 2 AGND + 0.1 AVDD – 0.1 V EXTERNAL REFERENCE INPUTS REFIN(+) to REFIN(–) Range 2 1 2.5 AVDD V Average Reference Input Current +/- 1 µA/V Both ADCs Enabled Average Reference Input Current Drift +/- 0.01 nA/V/°C ‘NO Ext. REF’ Trigger Voltage 0.3 0.65 V NOXREF bit active if VREF<0.3V NOXREF bit Inactive if VREF>0.65 Common Mode DC Rejection 125 dBs @DC, AIN=1V, Range=± 2.56V Common Mode 50/60Hz Rejection 90 dBs 50/60Hz ± 1Hz, AIN=1V, Range=± 2.56V Normal Mode 50/60 Hz Rejection 60 dBs 50/60Hz ± 1Hz, 59.4 Hz Update Rate |
Podobny numer części - ADUC844BS62-3 |
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Podobny opis - ADUC844BS62-3 |
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