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ADUC834BS Datasheet(PDF) 3 Page - Analog Devices |
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ADUC834BS Datasheet(HTML) 3 Page - Analog Devices |
3 / 80 page REV. 0 ADuC834 –3– Parameter ADuC834 Test Conditions/Comments Unit ADC SPECIFICATIONS Conversion Rate 5.4 On Both Channels Hz min 105 Programmable in 0.732 ms Increments Hz max Primary ADC No Missing Codes 2 24 20 Hz Update Rate Bits min Resolution 13.5 Range = ±20 mV, 20 Hz Update Rate Bits p-p typ 18.5 Range = ±2.56 V, 20 Hz Update Rate Bits p-p typ Output Noise See Tables X and XI Output Noise Varies with Selected in ADuC834 ADC Update Rate and Gain Range Description Integral Nonlinearity ±15 1 LSB16 ppm of FSR max Offset Error 3 ±3 V typ Offset Error Drift ±10 nV/ ∞C typ Full-Scale Error 4 ±10 V typ Gain Error Drift 5 ±0.5 ppm/ ∞C typ ADC Range Matching ±2AIN = 18 mV V typ Power Supply Rejection (PSR) 113 AIN = 7.8 mV, Range = ±20 mV dBs typ 80 AIN = 1 V, Range = ±2.56 V dBs min Common-Mode DC Rejection On AIN 95 At DC, AIN = 7.8 mV, Range = ±20 mV dBs min 113 At DC, AIN = 1 V, Range = ±2.56 V dBs typ On REFIN 125 At DC, AIN = 1 V, Range = ±2.56 V dBs typ Common-Mode 50 Hz/60 Hz Rejection 2 20 Hz Update Rate On AIN 95 50 Hz/60 Hz ±1Hz, AIN = 7.8 mV, dBs min Range = ±20 mV 90 50 Hz/60 Hz ±1Hz, AIN = 1 V, dBs min Range = ±2.56 V On REFIN 90 50 Hz/60 Hz ±1Hz, AIN = 1 V, dBs min Range = ±2.56 V Normal Mode 50 Hz/60 Hz Rejection 2 On AIN 60 50 Hz/60 Hz ±1Hz, 20 Hz Update Rate dBs min On REFIN 60 50 Hz/60 Hz ±1Hz, 20 Hz Update Rate dBs min Auxiliary ADC No Missing Codes 2 16 Bits min Resolution 16 Range = ±2.5 V, 20 Hz Update Rate Bits p-p typ Output Noise See Table XII in Output Noise Varies with Selected ADuC834 ADC Update Rate Description Integral Nonlinearity ±15 ppm of FSR max Offset Error 3 –2 LSB typ Offset Error Drift 1 V/ ∞C typ Full-Scale Error 6 –2.5 LSB typ Gain Error Drift 5 ±0.5 ppm/ ∞C typ Power Supply Rejection (PSR) 80 AIN = 1 V, 20 Hz Update Rate dBs min Normal Mode 50 Hz/60 Hz Rejection 2 On AIN 60 50 Hz/60 Hz ±1Hz dBs min On REFIN 6050 Hz/60 Hz ±1 Hz, 20 Hz Update Rate dBs min DAC PERFORMANCE DC Specifications 7 Resolution 12 Bits Relative Accuracy ±3LSB typ Differential Nonlinearity –1 Guaranteed 12-Bit Monotonic LSB max Offset Error ±50 mV max Gain Error 8 ±1AVDD Range % max ±1VREF Range % typ AC Specifications 2, 7 Voltage Output Settling Time 15 Settling Time to 1 LSB of Final Value s typ Digital-to-Analog Glitch Energy 10 1 LSB Change at Major Carry nVs typ SPECIFICATIONS1 (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.) |
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